Merge Bell 联系人与值班排班 (#183)

用户已于 2026-09-01 明确验收通过 #183。

Bell/server/app/bell/contact/crypto.go

@@ -0,0 +1,59 @@
+package contact
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"errors"
+	"io"
+	"strings"
+)
+
+var ErrChannelKeyUnavailable = errors.New("联系人通道加密密钥未配置或格式错误")
+
+func ParseChannelKey(value string) ([]byte, error) {
+	key, err := base64.StdEncoding.DecodeString(strings.TrimSpace(value))
+	if err != nil || len(key) != 32 {
+		return nil, ErrChannelKeyUnavailable
+	}
+	return key, nil
+}
+
+func encryptAddress(key []byte, value string) ([]byte, error) {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, ErrChannelKeyUnavailable
+	}
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return nil, err
+	}
+	nonce := make([]byte, gcm.NonceSize())
+	if _, err = io.ReadFull(rand.Reader, nonce); err != nil {
+		return nil, err
+	}
+	return gcm.Seal(nonce, nonce, []byte(value), nil), nil
+}
+
+func decryptAddress(key, encoded []byte) (string, error) {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", ErrChannelKeyUnavailable
+	}
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", err
+	}
+	if len(encoded) < gcm.NonceSize() {
+		return "", errors.New("通道密文已损坏")
+	}
+	plain, err := gcm.Open(nil, encoded[:gcm.NonceSize()], encoded[gcm.NonceSize():], nil)
+	return string(plain), err
+}
+
+func fingerprint(value string) string {
+	sum := sha256.Sum256([]byte(value))
+	return base64.RawURLEncoding.EncodeToString(sum[:])
+}

Bell/server/app/bell/contact/handler.go

@@ -0,0 +1,146 @@
+package contact
+
+import (
+	"errors"
+	"net/http"
+	"os"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gin-gonic/gin/binding"
+	"github.com/go-admin-team/go-admin-core/sdk/api"
+	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
+	"github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth/user"
+)
+
+type Handler struct{ api.Api }
+type enabledInput struct {
+	Enabled         *bool `json:"enabled" binding:"required"`
+	ExpectedVersion int   `json:"expectedVersion" binding:"required"`
+}
+type validationInput struct {
+	Status string `json:"status"`
+	Detail string `json:"detail"`
+}
+
+func (h Handler) service() (Service, error) {
+	key, err := ParseChannelKey(os.Getenv("BELL_CONTACT_CHANNEL_KEY"))
+	return NewService(h.Orm, key), err
+}
+func (h Handler) List(c *gin.Context) {
+	var q PageQuery
+	h.MakeContext(c).MakeOrm().Bind(&q, binding.Form)
+	if h.Errors != nil {
+		h.Error(400, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	items, count, err := NewService(h.Orm, nil).List(c.Request.Context(), q)
+	if err != nil {
+		h.Error(500, errors.New("读取联系人失败"), "读取联系人失败")
+		return
+	}
+	p, s := pageValues(q.PageIndex, q.PageSize)
+	h.PageOK(items, int(count), p, s, "查询成功")
+}
+func (h Handler) Create(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护联系人"), "仅管理员可维护联系人")
+		return
+	}
+	var input WriteInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil {
+		h.Error(400, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	item, err := NewService(h.Orm, nil).Create(c.Request.Context(), input, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) Update(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护联系人"), "仅管理员可维护联系人")
+		return
+	}
+	var input WriteInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil {
+		h.Error(400, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	item, err := NewService(h.Orm, nil).Update(c.Request.Context(), c.Param("id"), input, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) SetEnabled(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护联系人"), "仅管理员可维护联系人")
+		return
+	}
+	var input enabledInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil || input.Enabled == nil {
+		h.Error(400, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	item, err := NewService(h.Orm, nil).SetEnabled(c.Request.Context(), c.Param("id"), *input.Enabled, input.ExpectedVersion, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) AddChannel(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护通道"), "仅管理员可维护通道")
+		return
+	}
+	if err := restoreChannelBody(c); err != nil {
+		h.MakeContext(c).Error(http.StatusBadRequest, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	var input ChannelInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil {
+		h.Error(400, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	service, keyErr := h.service()
+	if keyErr != nil {
+		h.Error(503, keyErr, keyErr.Error())
+		return
+	}
+	item, err := service.AddChannel(c.Request.Context(), c.Param("id"), input, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) ValidateChannel(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可验证通道"), "仅管理员可验证通道")
+		return
+	}
+	var input validationInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil {
+		h.Error(400, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	item, err := NewService(h.Orm, nil).RecordValidation(c.Request.Context(), c.Param("id"), input.Status, input.Detail, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) result(item any, err error) {
+	switch {
+	case err == nil:
+		h.OK(item, "保存成功")
+	case errors.Is(err, ErrInvalid):
+		h.Error(400, err, err.Error())
+	case errors.Is(err, ErrNotFound):
+		h.Error(404, err, err.Error())
+	case errors.Is(err, ErrConflict):
+		h.Error(409, err, err.Error())
+	case errors.Is(err, ErrChannelKeyUnavailable):
+		h.Error(503, err, err.Error())
+	default:
+		h.Logger.Errorf("write Bell contact failed: %v", err)
+		h.Error(409, errors.New("联系人保存失败"), "联系人保存失败")
+	}
+}
+func admin(c *gin.Context) bool {
+	claims := jwt.ExtractClaims(c)
+	role, _ := claims[jwt.RoleKey].(string)
+	return role == "admin"
+}
+
+var _ = http.StatusOK

Bell/server/app/bell/contact/model.go

@@ -0,0 +1,68 @@
+package contact
+
+import (
+	"encoding/json"
+	"time"
+)
+
+type Contact struct {
+	ID        string    `json:"id" gorm:"type:uuid;primaryKey"`
+	Name      string    `json:"name" gorm:"size:128;not null"`
+	Role      string    `json:"role" gorm:"size:128;not null"`
+	Enabled   bool      `json:"enabled" gorm:"not null;default:true;index"`
+	Version   int       `json:"version" gorm:"not null;default:1"`
+	CreatedBy int       `json:"createdBy" gorm:"not null"`
+	UpdatedBy int       `json:"updatedBy" gorm:"not null"`
+	CreatedAt time.Time `json:"createdAt" gorm:"type:timestamptz;not null"`
+	UpdatedAt time.Time `json:"updatedAt" gorm:"type:timestamptz;not null"`
+}
+
+func (Contact) TableName() string { return "bell_contacts" }
+
+type Channel struct {
+	ID                 string    `json:"id" gorm:"type:uuid;primaryKey"`
+	ContactID          string    `json:"contactId" gorm:"type:uuid;not null;index"`
+	Kind               string    `json:"kind" gorm:"size:16;not null"`
+	AddressCiphertext  []byte    `json:"-" gorm:"type:bytea;not null"`
+	AddressFingerprint string    `json:"-" gorm:"size:64;not null;index"`
+	AddressMasked      string    `json:"addressMasked" gorm:"size:64;not null"`
+	CreatedBy          int       `json:"createdBy" gorm:"not null"`
+	CreatedAt          time.Time `json:"createdAt" gorm:"type:timestamptz;not null"`
+}
+
+func (Channel) TableName() string { return "bell_contact_channels" }
+
+type ChannelValidation struct {
+	ID        string    `json:"id" gorm:"type:uuid;primaryKey"`
+	ChannelID string    `json:"channelId" gorm:"type:uuid;not null;index"`
+	Status    string    `json:"status" gorm:"size:16;not null"`
+	Detail    string    `json:"detail" gorm:"size:256;not null"`
+	ActorID   int       `json:"actorId" gorm:"not null"`
+	CreatedAt time.Time `json:"createdAt" gorm:"type:timestamptz;not null;index"`
+}
+
+func (ChannelValidation) TableName() string { return "bell_contact_channel_validations" }
+
+type AuditFact struct {
+	ID        string          `json:"id" gorm:"type:uuid;primaryKey"`
+	ContactID string          `json:"contactId" gorm:"type:uuid;not null;index"`
+	Action    string          `json:"action" gorm:"size:32;not null"`
+	Snapshot  json.RawMessage `json:"snapshot" gorm:"type:jsonb;not null"`
+	ActorID   int             `json:"actorId" gorm:"not null"`
+	CreatedAt time.Time       `json:"createdAt" gorm:"type:timestamptz;not null"`
+}
+
+func (AuditFact) TableName() string { return "bell_contact_audit_facts" }
+
+type ChannelView struct {
+	ID            string     `json:"id"`
+	Kind          string     `json:"kind"`
+	AddressMasked string     `json:"addressMasked"`
+	Status        string     `json:"status"`
+	ValidatedAt   *time.Time `json:"validatedAt,omitempty"`
+}
+
+type ContactView struct {
+	Contact
+	Channels []ChannelView `json:"channels"`
+}

Bell/server/app/bell/contact/redaction.go

@@ -0,0 +1,62 @@
+package contact
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+const maxChannelRequestBytes = 8 * 1024
+const channelBodyKey = "bell.contact.channel-body"
+const channelBodyErrorKey = "bell.contact.channel-body-error"
+
+var redactedChannelBody = []byte(`{"redacted":true}`)
+
+// RedactRequestBody must run before GoAdmin's LoggerToFile middleware. The
+// handler restores the original body from Gin context, while sys_opera_log
+// only sees a fixed marker and never the contact address.
+func RedactRequestBody() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if c.Request.Method != http.MethodPost || !isChannelCreatePath(c.Request.URL.Path) {
+			c.Next()
+			return
+		}
+		body, err := io.ReadAll(io.LimitReader(c.Request.Body, maxChannelRequestBytes+1))
+		if err != nil {
+			c.Set(channelBodyErrorKey, err)
+		} else if len(body) > maxChannelRequestBytes {
+			c.Set(channelBodyErrorKey, errors.New("request body too large"))
+		} else {
+			c.Set(channelBodyKey, body)
+		}
+		_ = c.Request.Body.Close()
+		c.Request.Body = io.NopCloser(bytes.NewReader(redactedChannelBody))
+		c.Next()
+	}
+}
+
+func restoreChannelBody(c *gin.Context) error {
+	if value, ok := c.Get(channelBodyErrorKey); ok {
+		return value.(error)
+	}
+	value, ok := c.Get(channelBodyKey)
+	if !ok {
+		return errors.New("channel request body was not captured")
+	}
+	c.Request.Body = io.NopCloser(bytes.NewReader(value.([]byte)))
+	return nil
+}
+
+func isChannelCreatePath(path string) bool {
+	const prefix = "/api/v1/bell/contacts/"
+	const suffix = "/channels"
+	if !strings.HasPrefix(path, prefix) || !strings.HasSuffix(path, suffix) {
+		return false
+	}
+	id := strings.TrimSuffix(strings.TrimPrefix(path, prefix), suffix)
+	return id != "" && !strings.Contains(id, "/")
+}

Bell/server/app/bell/contact/service.go

@@ -0,0 +1,251 @@
+package contact
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type PageQuery struct {
+	PageIndex int    `form:"pageIndex"`
+	PageSize  int    `form:"pageSize"`
+	Name      string `form:"name"`
+	Enabled   *bool  `form:"enabled"`
+}
+type Service struct {
+	DB  *gorm.DB
+	Key []byte
+}
+
+func NewService(db *gorm.DB, key []byte) Service { return Service{DB: db, Key: key} }
+
+func (s Service) List(ctx context.Context, query PageQuery) ([]ContactView, int64, error) {
+	page, size := pageValues(query.PageIndex, query.PageSize)
+	db := s.DB.WithContext(ctx).Model(&Contact{})
+	if name := strings.TrimSpace(query.Name); name != "" {
+		db = db.Where("name ILIKE ? OR role ILIKE ?", "%"+name+"%", "%"+name+"%")
+	}
+	if query.Enabled != nil {
+		db = db.Where("enabled = ?", *query.Enabled)
+	}
+	var count int64
+	if err := db.Count(&count).Error; err != nil {
+		return nil, 0, err
+	}
+	var contacts []Contact
+	if err := db.Order("created_at DESC,id DESC").Offset((page - 1) * size).Limit(size).Find(&contacts).Error; err != nil {
+		return nil, 0, err
+	}
+	views := make([]ContactView, 0, len(contacts))
+	for _, item := range contacts {
+		view, err := s.view(ctx, item)
+		if err != nil {
+			return nil, 0, err
+		}
+		views = append(views, view)
+	}
+	return views, count, nil
+}
+
+func (s Service) Create(ctx context.Context, input WriteInput, actor int) (ContactView, error) {
+	input, err := normalizeContact(input)
+	if err != nil {
+		return ContactView{}, err
+	}
+	now := time.Now().UTC()
+	item := Contact{ID: uuid.NewString(), Name: input.Name, Role: input.Role, Enabled: true, Version: 1, CreatedBy: actor, UpdatedBy: actor, CreatedAt: now, UpdatedAt: now}
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := tx.Create(&item).Error; err != nil {
+			return err
+		}
+		return appendAudit(tx, item, "created", actor)
+	})
+	if err != nil {
+		return ContactView{}, err
+	}
+	return ContactView{Contact: item, Channels: []ChannelView{}}, nil
+}
+
+func (s Service) Update(ctx context.Context, id string, input WriteInput, actor int) (ContactView, error) {
+	if _, err := uuid.Parse(id); err != nil {
+		return ContactView{}, ErrNotFound
+	}
+	input, err := normalizeContact(input)
+	if err != nil {
+		return ContactView{}, err
+	}
+	if input.ExpectedVersion < 1 {
+		return ContactView{}, ErrInvalid
+	}
+	var item Contact
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		result := tx.Model(&Contact{}).Where("id = ? AND version = ?", id, input.ExpectedVersion).Updates(map[string]any{"name": input.Name, "role": input.Role, "version": gorm.Expr("version + 1"), "updated_by": actor, "updated_at": time.Now().UTC()})
+		if result.Error != nil {
+			return result.Error
+		}
+		if result.RowsAffected != 1 {
+			var count int64
+			_ = tx.Model(&Contact{}).Where("id = ?", id).Count(&count).Error
+			if count == 0 {
+				return ErrNotFound
+			}
+			return ErrConflict
+		}
+		if err := tx.First(&item, "id = ?", id).Error; err != nil {
+			return err
+		}
+		return appendAudit(tx, item, "updated", actor)
+	})
+	if err != nil {
+		return ContactView{}, err
+	}
+	return s.view(ctx, item)
+}
+
+func (s Service) SetEnabled(ctx context.Context, id string, enabled bool, expectedVersion, actor int) (ContactView, error) {
+	if _, err := uuid.Parse(id); err != nil {
+		return ContactView{}, ErrNotFound
+	}
+	if expectedVersion < 1 {
+		return ContactView{}, ErrInvalid
+	}
+	var item Contact
+	err := s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		result := tx.Model(&Contact{}).Where("id = ? AND version = ?", id, expectedVersion).Updates(map[string]any{"enabled": enabled, "version": gorm.Expr("version + 1"), "updated_by": actor, "updated_at": time.Now().UTC()})
+		if result.Error != nil {
+			return result.Error
+		}
+		if result.RowsAffected != 1 {
+			return ErrConflict
+		}
+		if err := tx.First(&item, "id = ?", id).Error; err != nil {
+			return err
+		}
+		return appendAudit(tx, item, map[bool]string{true: "enabled", false: "disabled"}[enabled], actor)
+	})
+	if err != nil {
+		return ContactView{}, err
+	}
+	return s.view(ctx, item)
+}
+
+func (s Service) AddChannel(ctx context.Context, contactID string, input ChannelInput, actor int) (ChannelView, error) {
+	if len(s.Key) != 32 {
+		return ChannelView{}, ErrChannelKeyUnavailable
+	}
+	if _, err := uuid.Parse(contactID); err != nil {
+		return ChannelView{}, ErrNotFound
+	}
+	input, err := normalizeChannel(input)
+	if err != nil {
+		return ChannelView{}, err
+	}
+	ciphertext, err := encryptAddress(s.Key, input.Address)
+	if err != nil {
+		return ChannelView{}, err
+	}
+	now := time.Now().UTC()
+	item := Channel{ID: uuid.NewString(), ContactID: contactID, Kind: input.Kind, AddressCiphertext: ciphertext, AddressFingerprint: fingerprint(input.Address), AddressMasked: maskAddress(input.Address), CreatedBy: actor, CreatedAt: now}
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		var contact Contact
+		if err := tx.First(&contact, "id = ?", contactID).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return ErrNotFound
+			}
+			return err
+		}
+		if err := tx.Create(&item).Error; err != nil {
+			return err
+		}
+		return appendAudit(tx, contact, "channel_added", actor)
+	})
+	if err != nil {
+		return ChannelView{}, err
+	}
+	return ChannelView{ID: item.ID, Kind: item.Kind, AddressMasked: item.AddressMasked, Status: "pending"}, nil
+}
+
+func (s Service) RecordValidation(ctx context.Context, channelID, status, detail string, actor int) (ChannelView, error) {
+	status = strings.ToLower(strings.TrimSpace(status))
+	detail = strings.TrimSpace(detail)
+	if status != "verified" && status != "failed" {
+		return ChannelView{}, ErrInvalid
+	}
+	if len([]rune(detail)) > 256 || hasControl(detail) {
+		return ChannelView{}, ErrInvalid
+	}
+	var channel Channel
+	fact := ChannelValidation{ID: uuid.NewString(), ChannelID: channelID, Status: status, Detail: detail, ActorID: actor, CreatedAt: time.Now().UTC()}
+	err := s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := tx.First(&channel, "id = ?", channelID).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return ErrNotFound
+			}
+			return err
+		}
+		if err := tx.Create(&fact).Error; err != nil {
+			return err
+		}
+		var c Contact
+		if err := tx.First(&c, "id = ?", channel.ContactID).Error; err != nil {
+			return err
+		}
+		return appendAudit(tx, c, "channel_validation_"+status, actor)
+	})
+	if err != nil {
+		return ChannelView{}, err
+	}
+	return ChannelView{ID: channel.ID, Kind: channel.Kind, AddressMasked: channel.AddressMasked, Status: status, ValidatedAt: &fact.CreatedAt}, nil
+}
+
+// DecryptChannelAddress is intentionally server-only. API responses never expose this value.
+func (s Service) DecryptChannelAddress(ctx context.Context, channelID string) (string, error) {
+	var item Channel
+	if err := s.DB.WithContext(ctx).First(&item, "id = ?", channelID).Error; err != nil {
+		return "", err
+	}
+	return decryptAddress(s.Key, item.AddressCiphertext)
+}
+
+func (s Service) view(ctx context.Context, item Contact) (ContactView, error) {
+	var channels []Channel
+	if err := s.DB.WithContext(ctx).Where("contact_id = ?", item.ID).Order("created_at,id").Find(&channels).Error; err != nil {
+		return ContactView{}, err
+	}
+	views := make([]ChannelView, 0, len(channels))
+	for _, ch := range channels {
+		view := ChannelView{ID: ch.ID, Kind: ch.Kind, AddressMasked: ch.AddressMasked, Status: "pending"}
+		var fact ChannelValidation
+		err := s.DB.WithContext(ctx).Where("channel_id = ?", ch.ID).Order("created_at DESC,id DESC").Take(&fact).Error
+		if err == nil {
+			view.Status = fact.Status
+			view.ValidatedAt = &fact.CreatedAt
+		} else if !errors.Is(err, gorm.ErrRecordNotFound) {
+			return ContactView{}, err
+		}
+		views = append(views, view)
+	}
+	return ContactView{Contact: item, Channels: views}, nil
+}
+
+func appendAudit(tx *gorm.DB, item Contact, action string, actor int) error {
+	snapshot, err := json.Marshal(map[string]any{"id": item.ID, "name": item.Name, "role": item.Role, "enabled": item.Enabled, "version": item.Version})
+	if err != nil {
+		return err
+	}
+	return tx.Create(&AuditFact{ID: uuid.NewString(), ContactID: item.ID, Action: action, Snapshot: snapshot, ActorID: actor, CreatedAt: time.Now().UTC()}).Error
+}
+func pageValues(page, size int) (int, int) {
+	if page < 1 {
+		page = 1
+	}
+	if size < 1 || size > 100 {
+		size = 20
+	}
+	return page, size
+}

Bell/server/app/bell/contact/validation.go

@@ -0,0 +1,60 @@
+package contact
+
+import (
+	"errors"
+	"regexp"
+	"strings"
+)
+
+var (
+	ErrInvalid   = errors.New("联系人或通道信息不符合要求")
+	ErrNotFound  = errors.New("联系人或通道不存在")
+	ErrConflict  = errors.New("数据已被其他人员更新，请刷新后重试")
+	phonePattern = regexp.MustCompile(`^\+?[0-9]{6,20}$`)
+)
+
+type WriteInput struct {
+	Name            string `json:"name"`
+	Role            string `json:"role"`
+	ExpectedVersion int    `json:"expectedVersion"`
+}
+
+type ChannelInput struct {
+	Kind    string `json:"kind"`
+	Address string `json:"address"`
+}
+
+func normalizeContact(input WriteInput) (WriteInput, error) {
+	input.Name = strings.TrimSpace(input.Name)
+	input.Role = strings.TrimSpace(input.Role)
+	if input.Name == "" || len([]rune(input.Name)) > 128 || input.Role == "" || len([]rune(input.Role)) > 128 || hasControl(input.Name+input.Role) {
+		return WriteInput{}, ErrInvalid
+	}
+	return input, nil
+}
+
+func normalizeChannel(input ChannelInput) (ChannelInput, error) {
+	input.Kind = strings.ToLower(strings.TrimSpace(input.Kind))
+	input.Address = strings.ReplaceAll(strings.ReplaceAll(strings.TrimSpace(input.Address), " ", ""), "-", "")
+	if (input.Kind != "sms" && input.Kind != "voice") || !phonePattern.MatchString(input.Address) {
+		return ChannelInput{}, ErrInvalid
+	}
+	return input, nil
+}
+
+func maskAddress(value string) string {
+	runes := []rune(value)
+	if len(runes) <= 4 {
+		return "****"
+	}
+	return strings.Repeat("*", min(8, len(runes)-4)) + string(runes[len(runes)-4:])
+}
+
+func hasControl(value string) bool {
+	for _, r := range value {
+		if r < 32 || r == 127 {
+			return true
+		}
+	}
+	return false
+}

Bell/server/app/bell/duty_schedule/handler.go

@@ -0,0 +1,127 @@
+package duty_schedule
+
+import (
+	"errors"
+	"github.com/gin-gonic/gin"
+	"github.com/gin-gonic/gin/binding"
+	"github.com/go-admin-team/go-admin-core/sdk/api"
+	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
+	"github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth/user"
+)
+
+type Handler struct{ api.Api }
+
+func (h Handler) List(c *gin.Context) {
+	var q PageQuery
+	h.MakeContext(c).MakeOrm().Bind(&q, binding.Form)
+	if h.Errors != nil {
+		h.Error(400, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	items, count, err := NewService(h.Orm).List(c.Request.Context(), q)
+	if err != nil {
+		h.Error(500, errors.New("读取排班失败"), "读取排班失败")
+		return
+	}
+	p, s := pageValues(q.PageIndex, q.PageSize)
+	h.PageOK(items, int(count), p, s, "查询成功")
+}
+func (h Handler) CreateGroup(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护排班"), "仅管理员可维护排班")
+		return
+	}
+	var input GroupInput
+	h.bind(c, &input)
+	if h.Errors != nil {
+		return
+	}
+	item, err := NewService(h.Orm).CreateGroup(c.Request.Context(), input, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) UpdateGroup(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护排班"), "仅管理员可维护排班")
+		return
+	}
+	var input GroupInput
+	h.bind(c, &input)
+	if h.Errors != nil {
+		return
+	}
+	item, err := NewService(h.Orm).UpdateGroup(c.Request.Context(), c.Param("id"), input, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) AddMember(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护排班"), "仅管理员可维护排班")
+		return
+	}
+	var input MemberInput
+	h.bind(c, &input)
+	if h.Errors != nil {
+		return
+	}
+	item, err := NewService(h.Orm).AddMember(c.Request.Context(), c.Param("id"), input, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) CreateSchedule(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护排班"), "仅管理员可维护排班")
+		return
+	}
+	var input ScheduleInput
+	h.bind(c, &input)
+	if h.Errors != nil {
+		return
+	}
+	item, err := NewService(h.Orm).CreateSchedule(c.Request.Context(), c.Param("id"), input, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) Publish(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可发布排班"), "仅管理员可发布排班")
+		return
+	}
+	item, err := NewService(h.Orm).Publish(c.Request.Context(), c.Param("id"), user.GetUserId(c))
+	h.result(item, err)
+}
+func (h Handler) CreateOverride(c *gin.Context) {
+	if !admin(c) {
+		h.MakeContext(c).Error(403, errors.New("仅管理员可维护替班"), "仅管理员可维护替班")
+		return
+	}
+	var input OverrideInput
+	h.bind(c, &input)
+	if h.Errors != nil {
+		return
+	}
+	item, err := NewService(h.Orm).CreateOverride(c.Request.Context(), c.Param("id"), input, user.GetUserId(c))
+	h.result(item, err)
+}
+func (h *Handler) bind(c *gin.Context, value any) {
+	h.MakeContext(c).MakeOrm().Bind(value, binding.JSON)
+	if h.Errors != nil {
+		h.Error(400, ErrInvalid, ErrInvalid.Error())
+	}
+}
+func (h Handler) result(item any, err error) {
+	switch {
+	case err == nil:
+		h.OK(item, "保存成功")
+	case errors.Is(err, ErrInvalid) || errors.Is(err, ErrCoverage):
+		h.Error(400, err, err.Error())
+	case errors.Is(err, ErrNotFound):
+		h.Error(404, err, err.Error())
+	case errors.Is(err, ErrConflict):
+		h.Error(409, err, err.Error())
+	default:
+		h.Logger.Errorf("write Bell duty schedule failed: %v", err)
+		h.Error(409, errors.New("排班保存失败"), "排班保存失败")
+	}
+}
+func admin(c *gin.Context) bool {
+	claims := jwt.ExtractClaims(c)
+	role, _ := claims[jwt.RoleKey].(string)
+	return role == "admin"
+}

Bell/server/app/bell/duty_schedule/model.go

@@ -0,0 +1,94 @@
+package duty_schedule
+
+import (
+	"encoding/json"
+	"time"
+)
+
+type Group struct {
+	ID        string    `json:"id" gorm:"type:uuid;primaryKey"`
+	Name      string    `json:"name" gorm:"size:128;not null;uniqueIndex"`
+	Timezone  string    `json:"timezone" gorm:"size:64;not null"`
+	Enabled   bool      `json:"enabled" gorm:"not null;default:true;index"`
+	Version   int       `json:"version" gorm:"not null;default:1"`
+	CreatedBy int       `json:"createdBy" gorm:"not null"`
+	UpdatedBy int       `json:"updatedBy" gorm:"not null"`
+	CreatedAt time.Time `json:"createdAt" gorm:"type:timestamptz;not null"`
+	UpdatedAt time.Time `json:"updatedAt" gorm:"type:timestamptz;not null"`
+}
+
+func (Group) TableName() string { return "bell_duty_groups" }
+
+type Member struct {
+	GroupID   string    `json:"groupId" gorm:"type:uuid;primaryKey"`
+	ContactID string    `json:"contactId" gorm:"type:uuid;primaryKey"`
+	Role      string    `json:"role" gorm:"size:16;not null"`
+	CreatedBy int       `json:"createdBy" gorm:"not null"`
+	CreatedAt time.Time `json:"createdAt" gorm:"type:timestamptz;not null"`
+}
+
+func (Member) TableName() string { return "bell_duty_members" }
+
+type ScheduleVersion struct {
+	ID            string     `json:"id" gorm:"type:uuid;primaryKey"`
+	GroupID       string     `json:"groupId" gorm:"type:uuid;not null;index"`
+	Version       int        `json:"version" gorm:"not null"`
+	Timezone      string     `json:"timezone" gorm:"size:64;not null"`
+	EffectiveFrom time.Time  `json:"effectiveFrom" gorm:"type:timestamptz;not null"`
+	EffectiveTo   *time.Time `json:"effectiveTo,omitempty" gorm:"type:timestamptz"`
+	Status        string     `json:"status" gorm:"size:16;not null"`
+	CreatedBy     int        `json:"createdBy" gorm:"not null"`
+	CreatedAt     time.Time  `json:"createdAt" gorm:"type:timestamptz;not null"`
+	PublishedBy   *int       `json:"publishedBy,omitempty"`
+	PublishedAt   *time.Time `json:"publishedAt,omitempty" gorm:"type:timestamptz"`
+}
+
+func (ScheduleVersion) TableName() string { return "bell_duty_schedule_versions" }
+
+type RotationSlot struct {
+	ID                string `json:"id" gorm:"type:uuid;primaryKey"`
+	ScheduleVersionID string `json:"scheduleVersionId" gorm:"type:uuid;not null;index"`
+	Weekday           int    `json:"weekday" gorm:"not null"`
+	StartMinute       int    `json:"startMinute" gorm:"not null"`
+	EndMinute         int    `json:"endMinute" gorm:"not null"`
+	PrimaryContactID  string `json:"primaryContactId" gorm:"type:uuid;not null"`
+	BackupContactID   string `json:"backupContactId" gorm:"type:uuid;not null"`
+}
+
+func (RotationSlot) TableName() string { return "bell_duty_rotation_slots" }
+
+type Override struct {
+	ID                   string    `json:"id" gorm:"type:uuid;primaryKey"`
+	GroupID              string    `json:"groupId" gorm:"type:uuid;not null;index"`
+	OriginalContactID    string    `json:"originalContactId" gorm:"type:uuid;not null"`
+	ReplacementContactID string    `json:"replacementContactId" gorm:"type:uuid;not null"`
+	StartsAt             time.Time `json:"startsAt" gorm:"type:timestamptz;not null;index"`
+	EndsAt               time.Time `json:"endsAt" gorm:"type:timestamptz;not null"`
+	Reason               string    `json:"reason" gorm:"size:256;not null"`
+	CreatedBy            int       `json:"createdBy" gorm:"not null"`
+	CreatedAt            time.Time `json:"createdAt" gorm:"type:timestamptz;not null"`
+}
+
+func (Override) TableName() string { return "bell_duty_overrides" }
+
+type AuditFact struct {
+	ID        string          `json:"id" gorm:"type:uuid;primaryKey"`
+	GroupID   string          `json:"groupId" gorm:"type:uuid;not null;index"`
+	Action    string          `json:"action" gorm:"size:32;not null"`
+	Snapshot  json.RawMessage `json:"snapshot" gorm:"type:jsonb;not null"`
+	ActorID   int             `json:"actorId" gorm:"not null"`
+	CreatedAt time.Time       `json:"createdAt" gorm:"type:timestamptz;not null"`
+}
+
+func (AuditFact) TableName() string { return "bell_duty_audit_facts" }
+
+type GroupView struct {
+	Group
+	Members   []Member       `json:"members"`
+	Schedules []ScheduleView `json:"schedules"`
+	Overrides []Override     `json:"overrides"`
+}
+type ScheduleView struct {
+	ScheduleVersion
+	Slots []RotationSlot `json:"slots"`
+}

Bell/server/app/bell/duty_schedule/service.go

@@ -0,0 +1,299 @@
+package duty_schedule
+
+import (
+	"context"
+	"encoding/json"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+
+	"go-admin/app/bell/contact"
+)
+
+type PageQuery struct {
+	PageIndex int    `form:"pageIndex"`
+	PageSize  int    `form:"pageSize"`
+	Name      string `form:"name"`
+	Enabled   *bool  `form:"enabled"`
+}
+type Service struct{ DB *gorm.DB }
+
+func NewService(db *gorm.DB) Service { return Service{DB: db} }
+func (s Service) List(ctx context.Context, q PageQuery) ([]GroupView, int64, error) {
+	p, z := pageValues(q.PageIndex, q.PageSize)
+	db := s.DB.WithContext(ctx).Model(&Group{})
+	if name := strings.TrimSpace(q.Name); name != "" {
+		db = db.Where("name ILIKE ?", "%"+name+"%")
+	}
+	if q.Enabled != nil {
+		db = db.Where("enabled = ?", *q.Enabled)
+	}
+	var count int64
+	if err := db.Count(&count).Error; err != nil {
+		return nil, 0, err
+	}
+	var groups []Group
+	if err := db.Order("created_at DESC,id DESC").Offset((p - 1) * z).Limit(z).Find(&groups).Error; err != nil {
+		return nil, 0, err
+	}
+	views := make([]GroupView, 0, len(groups))
+	for _, g := range groups {
+		v, err := s.view(ctx, g)
+		if err != nil {
+			return nil, 0, err
+		}
+		views = append(views, v)
+	}
+	return views, count, nil
+}
+func (s Service) CreateGroup(ctx context.Context, input GroupInput, actor int) (GroupView, error) {
+	input, err := normalizeGroup(input)
+	if err != nil {
+		return GroupView{}, err
+	}
+	now := time.Now().UTC()
+	item := Group{ID: uuid.NewString(), Name: input.Name, Timezone: input.Timezone, Enabled: true, Version: 1, CreatedBy: actor, UpdatedBy: actor, CreatedAt: now, UpdatedAt: now}
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := tx.Create(&item).Error; err != nil {
+			return err
+		}
+		return audit(tx, item.ID, "group_created", item, actor)
+	})
+	return GroupView{Group: item, Members: []Member{}, Schedules: []ScheduleView{}, Overrides: []Override{}}, err
+}
+func (s Service) UpdateGroup(ctx context.Context, id string, input GroupInput, actor int) (GroupView, error) {
+	input, err := normalizeGroup(input)
+	if err != nil {
+		return GroupView{}, err
+	}
+	if input.ExpectedVersion < 1 {
+		return GroupView{}, ErrInvalid
+	}
+	var item Group
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		r := tx.Model(&Group{}).Where("id=? AND version=?", id, input.ExpectedVersion).Updates(map[string]any{"name": input.Name, "timezone": input.Timezone, "version": gorm.Expr("version+1"), "updated_by": actor, "updated_at": time.Now().UTC()})
+		if r.Error != nil {
+			return r.Error
+		}
+		if r.RowsAffected != 1 {
+			return ErrConflict
+		}
+		if err := tx.First(&item, "id=?", id).Error; err != nil {
+			return err
+		}
+		return audit(tx, id, "group_updated", item, actor)
+	})
+	if err != nil {
+		return GroupView{}, err
+	}
+	return s.view(ctx, item)
+}
+func (s Service) AddMember(ctx context.Context, groupID string, input MemberInput, actor int) (Member, error) {
+	input.Role = strings.ToLower(strings.TrimSpace(input.Role))
+	if input.Role != "primary" && input.Role != "backup" {
+		return Member{}, ErrInvalid
+	}
+	now := time.Now().UTC()
+	item := Member{GroupID: groupID, ContactID: input.ContactID, Role: input.Role, CreatedBy: actor, CreatedAt: now}
+	err := s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := assertEnabledContact(tx, input.ContactID); err != nil {
+			return err
+		}
+		if err := tx.First(&Group{}, "id=?", groupID).Error; err != nil {
+			return ErrNotFound
+		}
+		if err := tx.Clauses(clause.OnConflict{Columns: []clause.Column{{Name: "group_id"}, {Name: "contact_id"}}, DoUpdates: clause.AssignmentColumns([]string{"role", "created_by", "created_at"})}).Create(&item).Error; err != nil {
+			return err
+		}
+		return audit(tx, groupID, "member_saved", item, actor)
+	})
+	return item, err
+}
+func (s Service) CreateSchedule(ctx context.Context, groupID string, input ScheduleInput, actor int) (ScheduleView, error) {
+	if input.EffectiveFrom.IsZero() || (input.EffectiveTo != nil && !input.EffectiveTo.After(input.EffectiveFrom)) {
+		return ScheduleView{}, ErrInvalid
+	}
+	if err := validateSlots(input.Slots); err != nil {
+		return ScheduleView{}, err
+	}
+	var result ScheduleView
+	err := s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		var group Group
+		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&group, "id=?", groupID).Error; err != nil {
+			return ErrNotFound
+		}
+		for _, slot := range input.Slots {
+			if err := assertGroupMember(tx, groupID, slot.PrimaryContactID); err != nil {
+				return err
+			}
+			if err := assertGroupMember(tx, groupID, slot.BackupContactID); err != nil {
+				return err
+			}
+		}
+		var latest int
+		tx.Model(&ScheduleVersion{}).Where("group_id=?", groupID).Select("coalesce(max(version),0)").Scan(&latest)
+		now := time.Now().UTC()
+		version := ScheduleVersion{ID: uuid.NewString(), GroupID: groupID, Version: latest + 1, Timezone: group.Timezone, EffectiveFrom: input.EffectiveFrom.UTC(), EffectiveTo: input.EffectiveTo, Status: "draft", CreatedBy: actor, CreatedAt: now}
+		if err := tx.Create(&version).Error; err != nil {
+			return err
+		}
+		slots := make([]RotationSlot, 0, len(input.Slots))
+		for _, in := range input.Slots {
+			slots = append(slots, RotationSlot{ID: uuid.NewString(), ScheduleVersionID: version.ID, Weekday: in.Weekday, StartMinute: in.StartMinute, EndMinute: in.EndMinute, PrimaryContactID: in.PrimaryContactID, BackupContactID: in.BackupContactID})
+		}
+		if err := tx.Create(&slots).Error; err != nil {
+			return err
+		}
+		if err := audit(tx, groupID, "schedule_created", version, actor); err != nil {
+			return err
+		}
+		result = ScheduleView{ScheduleVersion: version, Slots: slots}
+		return nil
+	})
+	return result, err
+}
+func (s Service) Publish(ctx context.Context, id string, actor int) (ScheduleView, error) {
+	var result ScheduleView
+	err := s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		var item ScheduleVersion
+		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&item, "id=?", id).Error; err != nil {
+			return ErrNotFound
+		}
+		if item.Status != "draft" {
+			return ErrConflict
+		}
+		var slots []RotationSlot
+		if err := tx.Where("schedule_version_id=?", id).Find(&slots).Error; err != nil {
+			return err
+		}
+		inputs := make([]SlotInput, 0, len(slots))
+		for _, v := range slots {
+			inputs = append(inputs, SlotInput{Weekday: v.Weekday, StartMinute: v.StartMinute, EndMinute: v.EndMinute, PrimaryContactID: v.PrimaryContactID, BackupContactID: v.BackupContactID})
+		}
+		if err := validateSlots(inputs); err != nil {
+			return err
+		}
+		for _, v := range slots {
+			if err := assertVerifiedContact(tx, v.PrimaryContactID); err != nil {
+				return err
+			}
+			if err := assertVerifiedContact(tx, v.BackupContactID); err != nil {
+				return err
+			}
+		}
+		now := time.Now().UTC()
+		if err := tx.Model(&item).Updates(map[string]any{"status": "published", "published_by": actor, "published_at": now}).Error; err != nil {
+			return err
+		}
+		item.Status = "published"
+		item.PublishedBy = &actor
+		item.PublishedAt = &now
+		if err := audit(tx, item.GroupID, "schedule_published", item, actor); err != nil {
+			return err
+		}
+		result = ScheduleView{ScheduleVersion: item, Slots: slots}
+		return nil
+	})
+	return result, err
+}
+func (s Service) CreateOverride(ctx context.Context, groupID string, input OverrideInput, actor int) (Override, error) {
+	input, err := normalizeOverride(input)
+	if err != nil {
+		return Override{}, err
+	}
+	item := Override{ID: uuid.NewString(), GroupID: groupID, OriginalContactID: input.OriginalContactID, ReplacementContactID: input.ReplacementContactID, StartsAt: input.StartsAt.UTC(), EndsAt: input.EndsAt.UTC(), Reason: input.Reason, CreatedBy: actor, CreatedAt: time.Now().UTC()}
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := assertGroupMember(tx, groupID, input.OriginalContactID); err != nil {
+			return err
+		}
+		if err := assertGroupMember(tx, groupID, input.ReplacementContactID); err != nil {
+			return err
+		}
+		var overlaps int64
+		if err := tx.Model(&Override{}).Where("group_id=? AND original_contact_id=? AND starts_at < ? AND ends_at > ?", groupID, input.OriginalContactID, item.EndsAt, item.StartsAt).Count(&overlaps).Error; err != nil {
+			return err
+		}
+		if overlaps > 0 {
+			return ErrConflict
+		}
+		if err := tx.Create(&item).Error; err != nil {
+			return err
+		}
+		return audit(tx, groupID, "override_created", item, actor)
+	})
+	return item, err
+}
+func (s Service) view(ctx context.Context, g Group) (GroupView, error) {
+	v := GroupView{Group: g, Members: []Member{}, Schedules: []ScheduleView{}, Overrides: []Override{}}
+	if err := s.DB.WithContext(ctx).Where("group_id=?", g.ID).Order("role,contact_id").Find(&v.Members).Error; err != nil {
+		return v, err
+	}
+	var versions []ScheduleVersion
+	if err := s.DB.WithContext(ctx).Where("group_id=?", g.ID).Order("version DESC").Find(&versions).Error; err != nil {
+		return v, err
+	}
+	for _, sv := range versions {
+		var slots []RotationSlot
+		if err := s.DB.WithContext(ctx).Where("schedule_version_id=?", sv.ID).Order("weekday,start_minute").Find(&slots).Error; err != nil {
+			return v, err
+		}
+		v.Schedules = append(v.Schedules, ScheduleView{ScheduleVersion: sv, Slots: slots})
+	}
+	if err := s.DB.WithContext(ctx).Where("group_id=?", g.ID).Order("starts_at DESC").Limit(50).Find(&v.Overrides).Error; err != nil {
+		return v, err
+	}
+	return v, nil
+}
+func assertEnabledContact(tx *gorm.DB, id string) error {
+	var c contact.Contact
+	if err := tx.Where("id=? AND enabled=true", id).First(&c).Error; err != nil {
+		return ErrInvalid
+	}
+	return nil
+}
+func assertGroupMember(tx *gorm.DB, groupID, contactID string) error {
+	if err := assertEnabledContact(tx, contactID); err != nil {
+		return err
+	}
+	var count int64
+	if err := tx.Model(&Member{}).Where("group_id=? AND contact_id=?", groupID, contactID).Count(&count).Error; err != nil {
+		return err
+	}
+	if count != 1 {
+		return ErrInvalid
+	}
+	return nil
+}
+func assertVerifiedContact(tx *gorm.DB, contactID string) error {
+	if err := assertEnabledContact(tx, contactID); err != nil {
+		return err
+	}
+	var count int64
+	err := tx.Raw(`SELECT count(*) FROM bell_contact_channels c WHERE c.contact_id=? AND (SELECT v.status FROM bell_contact_channel_validations v WHERE v.channel_id=c.id ORDER BY v.created_at DESC,v.id DESC LIMIT 1)='verified'`, contactID).Scan(&count).Error
+	if err != nil {
+		return err
+	}
+	if count == 0 {
+		return ErrInvalid
+	}
+	return nil
+}
+func audit(tx *gorm.DB, groupID, action string, value any, actor int) error {
+	data, err := json.Marshal(value)
+	if err != nil {
+		return err
+	}
+	return tx.Create(&AuditFact{ID: uuid.NewString(), GroupID: groupID, Action: action, Snapshot: data, ActorID: actor, CreatedAt: time.Now().UTC()}).Error
+}
+func pageValues(p, s int) (int, int) {
+	if p < 1 {
+		p = 1
+	}
+	if s < 1 || s > 100 {
+		s = 20
+	}
+	return p, s
+}

Bell/server/app/bell/duty_schedule/validation.go

@@ -0,0 +1,90 @@
+package duty_schedule
+
+import (
+	"errors"
+	"sort"
+	"strings"
+	"time"
+)
+
+var (
+	ErrInvalid  = errors.New("值班排班信息不符合要求")
+	ErrNotFound = errors.New("值班组或排班不存在")
+	ErrConflict = errors.New("数据已被其他人员更新，请刷新后重试")
+	ErrCoverage = errors.New("周排班存在空档或重叠")
+)
+
+type GroupInput struct {
+	Name            string `json:"name"`
+	Timezone        string `json:"timezone"`
+	ExpectedVersion int    `json:"expectedVersion"`
+}
+type MemberInput struct {
+	ContactID string `json:"contactId"`
+	Role      string `json:"role"`
+}
+type SlotInput struct {
+	Weekday          int    `json:"weekday"`
+	StartMinute      int    `json:"startMinute"`
+	EndMinute        int    `json:"endMinute"`
+	PrimaryContactID string `json:"primaryContactId"`
+	BackupContactID  string `json:"backupContactId"`
+}
+type ScheduleInput struct {
+	EffectiveFrom time.Time   `json:"effectiveFrom"`
+	EffectiveTo   *time.Time  `json:"effectiveTo"`
+	Slots         []SlotInput `json:"slots"`
+}
+type OverrideInput struct {
+	OriginalContactID    string    `json:"originalContactId"`
+	ReplacementContactID string    `json:"replacementContactId"`
+	StartsAt             time.Time `json:"startsAt"`
+	EndsAt               time.Time `json:"endsAt"`
+	Reason               string    `json:"reason"`
+}
+
+func normalizeGroup(input GroupInput) (GroupInput, error) {
+	input.Name = strings.TrimSpace(input.Name)
+	input.Timezone = strings.TrimSpace(input.Timezone)
+	if input.Name == "" || len([]rune(input.Name)) > 128 {
+		return GroupInput{}, ErrInvalid
+	}
+	if _, err := time.LoadLocation(input.Timezone); err != nil {
+		return GroupInput{}, ErrInvalid
+	}
+	return input, nil
+}
+func validateSlots(slots []SlotInput) error {
+	if len(slots) == 0 {
+		return ErrCoverage
+	}
+	byDay := map[int][]SlotInput{}
+	for _, slot := range slots {
+		if slot.Weekday < 0 || slot.Weekday > 6 || slot.StartMinute < 0 || slot.EndMinute > 1440 || slot.StartMinute >= slot.EndMinute || slot.PrimaryContactID == "" || slot.BackupContactID == "" || slot.PrimaryContactID == slot.BackupContactID {
+			return ErrInvalid
+		}
+		byDay[slot.Weekday] = append(byDay[slot.Weekday], slot)
+	}
+	for day := 0; day < 7; day++ {
+		daySlots := byDay[day]
+		sort.Slice(daySlots, func(i, j int) bool { return daySlots[i].StartMinute < daySlots[j].StartMinute })
+		cursor := 0
+		for _, slot := range daySlots {
+			if slot.StartMinute != cursor {
+				return ErrCoverage
+			}
+			cursor = slot.EndMinute
+		}
+		if cursor != 1440 {
+			return ErrCoverage
+		}
+	}
+	return nil
+}
+func normalizeOverride(input OverrideInput) (OverrideInput, error) {
+	input.Reason = strings.TrimSpace(input.Reason)
+	if input.OriginalContactID == "" || input.ReplacementContactID == "" || input.OriginalContactID == input.ReplacementContactID || input.StartsAt.IsZero() || !input.EndsAt.After(input.StartsAt) || input.Reason == "" || len([]rune(input.Reason)) > 256 {
+		return OverrideInput{}, ErrInvalid
+	}
+	return input, nil
+}

Bell/server/app/bell/integration/event_ingress/evidence.go

@@ -0,0 +1,117 @@
+package event_ingress
+
+import (
+	"bytes"
+	"context"
+	"crypto/rand"
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"gorm.io/gorm"
+
+	"go-admin/app/bell/integration/machine_identity"
+)
+
+type EvidenceClient struct {
+	Endpoint string
+	Signer   machine_identity.Signer
+	HTTP     interface {
+		Do(*http.Request) (*http.Response, error)
+	}
+}
+
+func NewEvidenceClient(endpoint string, signer machine_identity.Signer) (*EvidenceClient, error) {
+	parsed, err := url.Parse(endpoint)
+	if err != nil || parsed.Scheme != "https" || parsed.Host == "" || parsed.User != nil || parsed.Path != "" || parsed.RawQuery != "" || parsed.Fragment != "" {
+		return nil, errors.New("Sense evidence endpoint must be an HTTPS origin without userinfo")
+	}
+	transport := &http.Transport{TLSClientConfig: &tls.Config{MinVersion: tls.VersionTLS12}, TLSHandshakeTimeout: 5 * time.Second, ResponseHeaderTimeout: 5 * time.Second}
+	return &EvidenceClient{Endpoint: strings.TrimRight(endpoint, "/"), Signer: signer, HTTP: &http.Client{Transport: transport, Timeout: 8 * time.Second}}, nil
+}
+
+func (c EvidenceClient) Refresh(ctx context.Context, db *gorm.DB, status EvidenceStatus) error {
+	path := "/v1/evidence/" + status.EvidenceID
+	token, err := c.Signer.Mint("yovision-sense", []string{"evidence:read"}, http.MethodGet, path, nil)
+	if err != nil {
+		return c.degrade(db, status, "unavailable", "machine_identity_error")
+	}
+	request, err := http.NewRequestWithContext(ctx, http.MethodGet, c.Endpoint+path, nil)
+	if err != nil {
+		return c.degrade(db, status, "unavailable", "invalid_request")
+	}
+	request.Header.Set("Authorization", "Bearer "+token)
+	request.Header.Set("X-Request-ID", newCorrelationID())
+	response, err := c.HTTP.Do(request)
+	if err != nil {
+		code := "evidence_unavailable"
+		if errors.Is(err, context.DeadlineExceeded) || errors.Is(ctx.Err(), context.DeadlineExceeded) {
+			code = "evidence_timeout"
+		}
+		return c.degrade(db, status, "unavailable", code)
+	}
+	defer response.Body.Close()
+	body, readErr := io.ReadAll(io.LimitReader(response.Body, 64*1024+1))
+	if readErr != nil || len(body) > 64*1024 {
+		return c.degrade(db, status, "unavailable", "invalid_evidence_response")
+	}
+	if response.StatusCode == http.StatusNotFound {
+		return c.degrade(db, status, "unavailable", "evidence_not_found")
+	}
+	if response.StatusCode == http.StatusGone {
+		return c.degrade(db, status, "expired", "evidence_expired")
+	}
+	if response.StatusCode != http.StatusOK {
+		return c.degrade(db, status, "unavailable", "evidence_unavailable")
+	}
+	decoder := json.NewDecoder(bytes.NewReader(body))
+	decoder.DisallowUnknownFields()
+	var evidence Evidence
+	if err = decoder.Decode(&evidence); err != nil || evidence.EvidenceID != status.EvidenceID || evidence.OwnerID != status.OwnerID || validateEvidence(evidence) != nil {
+		return c.degrade(db, status, "unavailable", "invalid_evidence_response")
+	}
+	canonical, err := canonicalJSON(body)
+	if err != nil {
+		return c.degrade(db, status, "unavailable", "invalid_evidence_response")
+	}
+	now := time.Now().UTC()
+	var expiresAt *time.Time
+	if evidence.ExpiresAt != "" {
+		parsedExpiry, parseErr := time.Parse(time.RFC3339Nano, evidence.ExpiresAt)
+		if parseErr != nil {
+			return c.degrade(db, status, "unavailable", "invalid_evidence_response")
+		}
+		parsedExpiry = parsedExpiry.UTC()
+		expiresAt = &parsedExpiry
+	}
+	return db.Model(&EvidenceStatus{}).Where("event_id = ? AND evidence_id = ?", status.EventID, status.EvidenceID).Updates(map[string]any{"status": evidence.Status, "resolution": "current", "current_payload": canonical, "last_error": "", "expires_at": expiresAt, "checked_at": now, "updated_at": now}).Error
+}
+
+func (c EvidenceClient) degrade(db *gorm.DB, status EvidenceStatus, resolution, code string) error {
+	now := time.Now().UTC()
+	return db.Model(&EvidenceStatus{}).Where("event_id = ? AND evidence_id = ?", status.EventID, status.EvidenceID).Updates(map[string]any{"resolution": resolution, "last_error": code, "checked_at": now, "updated_at": now}).Error
+}
+
+func newCorrelationID() string {
+	raw := make([]byte, 16)
+	if _, err := rand.Read(raw); err != nil {
+		return "request-id-fallback"
+	}
+	return base64.RawURLEncoding.EncodeToString(raw)
+}
+
+func LoadEvidenceClient(getenv func(string) string) (*EvidenceClient, error) {
+	key, err := machine_identity.LoadPrivateKey(getenv("BELL_SENSE_PRIVATE_KEY_PATH"))
+	if err != nil {
+		return nil, fmt.Errorf("load Bell evidence key: %w", err)
+	}
+	signer := machine_identity.Signer{Principal: strings.TrimSpace(getenv("BELL_SENSE_PRINCIPAL_ID")), KeyID: strings.TrimSpace(getenv("BELL_SENSE_KEY_ID")), PrivateKey: key}
+	return NewEvidenceClient(strings.TrimSpace(getenv("BELL_SENSE_EVIDENCE_ENDPOINT")), signer)
+}

Bell/server/app/bell/integration/event_ingress/handler.go

@@ -0,0 +1,107 @@
+package event_ingress
+
+import (
+	"errors"
+	"io"
+	"net/http"
+	"regexp"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+
+	"go-admin/app/bell/integration/machine_identity"
+)
+
+const MaxRequestBytes = 64 * 1024
+
+var requestIDPattern = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9._:-]{15,127}$`)
+
+type Handler struct {
+	DB       *gorm.DB
+	Verifier machine_identity.Verifier
+	Enabled  bool
+	Resolver EvidenceRefresher
+}
+
+func (h Handler) Post(c *gin.Context) {
+	if !h.Enabled {
+		writeProblem(c, http.StatusServiceUnavailable, "connector_disabled", "event connector is disabled", "")
+		return
+	}
+	requestID := c.GetHeader("X-Request-ID")
+	if requestID == "" {
+		requestID = uuid.NewString()
+	} else if !requestIDPattern.MatchString(requestID) {
+		writeProblem(c, http.StatusBadRequest, "invalid_request_id", "X-Request-ID must be an opaque 16-128 character value", "")
+		return
+	}
+	c.Header("X-Request-ID", requestID)
+	if c.Request.URL.RawQuery != "" || c.Request.URL.Fragment != "" || c.Request.URL.EscapedPath() != "/v1/events" {
+		writeProblem(c, http.StatusBadRequest, "invalid_request_target", "event request target must be the normalized /v1/events path", "")
+		return
+	}
+	if relayHeader := c.GetHeader("X-YoVision-Relay-ID"); relayHeader != "" {
+		relayID := strings.TrimSpace(relayHeader)
+		if relayID != relayHeader || !validID(relayID) {
+			writeProblem(c, http.StatusBadRequest, "invalid_event", "relay identity header is invalid", "")
+			return
+		}
+	}
+	body, err := io.ReadAll(http.MaxBytesReader(c.Writer, c.Request.Body, MaxRequestBytes))
+	if err != nil {
+		writeProblem(c, http.StatusBadRequest, "invalid_event", "event payload is invalid or too large", "")
+		return
+	}
+	token, err := machine_identity.BearerToken(c.GetHeader("Authorization"))
+	if err != nil {
+		writeProblem(c, http.StatusUnauthorized, machineErrorCode(err), "machine identity was rejected", "")
+		return
+	}
+	if _, err = h.Verifier.Verify(token, "yovision-bell", "events:ingest", c.Request.Method, c.Request.URL.EscapedPath(), body); err != nil {
+		status := http.StatusUnauthorized
+		code := machineErrorCode(err)
+		if code == "machine_scope_denied" || code == "machine_audience_denied" {
+			status = http.StatusForbidden
+		}
+		writeProblem(c, status, code, "machine identity was rejected", "")
+		return
+	}
+	parsed, err := ParseEvent(body)
+	if err != nil {
+		if errors.Is(err, ErrUnsupportedSchema) {
+			writeProblem(c, http.StatusUnprocessableEntity, "unsupported_schema_version", "event schema version is unsupported", "")
+			return
+		}
+		writeProblem(c, http.StatusBadRequest, "invalid_event", "event payload failed validation", "")
+		return
+	}
+	result, err := (Service{DB: h.DB, Resolver: h.Resolver}).Ingest(c.Request.Context(), parsed)
+	if errors.Is(err, ErrIdempotencyConflict) {
+		writeProblem(c, http.StatusConflict, "idempotency_conflict", "idempotency key is already bound to another payload", result.EventID)
+		return
+	}
+	if err != nil {
+		writeProblem(c, http.StatusServiceUnavailable, "ingest_unavailable", "event ingest is temporarily unavailable", "")
+		return
+	}
+	status := http.StatusCreated
+	if result.Disposition == "duplicate" {
+		status = http.StatusOK
+	}
+	c.JSON(status, result)
+}
+
+func writeProblem(c *gin.Context, status int, code, message, existing string) {
+	c.Header("Content-Type", "application/problem+json")
+	c.JSON(status, Problem{Code: code, Message: message, ExistingEventID: existing})
+}
+
+func machineErrorCode(err error) string {
+	var machineErr *machine_identity.Error
+	if errors.As(err, &machineErr) {
+		return machineErr.Code
+	}
+	return "machine_token_invalid"
+}

Bell/server/app/bell/integration/event_ingress/model.go

@@ -0,0 +1,116 @@
+package event_ingress
+
+import (
+	"encoding/json"
+	"time"
+)
+
+const (
+	EventSchemaVersion    = "yovision.event/v1"
+	EvidenceSchemaVersion = "yovision.evidence-reference/v1"
+)
+
+type Event struct {
+	SchemaVersion string      `json:"schema_version"`
+	ProducerID    string      `json:"producer_id"`
+	SourceEventID string      `json:"source_event_id"`
+	SiteRef       string      `json:"site_ref"`
+	DeviceRef     string      `json:"device_ref"`
+	ProfileRef    string      `json:"profile_ref"`
+	EventType     string      `json:"event_type"`
+	OccurredAt    string      `json:"occurred_at"`
+	Severity      string      `json:"severity"`
+	Rule          Rule        `json:"rule"`
+	Model         Model       `json:"model"`
+	Observation   Observation `json:"observation"`
+	Region        Region      `json:"region"`
+	Evidence      []Evidence  `json:"evidence"`
+}
+
+type Rule struct {
+	RuleID  string `json:"rule_id"`
+	Version string `json:"version"`
+}
+
+type Model struct {
+	Name    string `json:"name"`
+	Version string `json:"version"`
+}
+
+type Observation struct {
+	TrackID        string    `json:"track_id"`
+	Category       string    `json:"category"`
+	Confidence     float64   `json:"confidence"`
+	BBoxNormalized []float64 `json:"bbox_normalized,omitempty"`
+}
+
+type Region struct {
+	RegionID          string `json:"region_id"`
+	Kind              string `json:"kind"`
+	CrossingDirection string `json:"crossing_direction,omitempty"`
+}
+
+type Evidence struct {
+	SchemaVersion   string             `json:"schema_version"`
+	EvidenceID      string             `json:"evidence_id"`
+	OwnerID         string             `json:"owner_id"`
+	Type            string             `json:"type"`
+	Status          string             `json:"status"`
+	CapturedAt      string             `json:"captured_at"`
+	StatusUpdatedAt string             `json:"status_updated_at"`
+	ExpiresAt       string             `json:"expires_at,omitempty"`
+	ContentType     string             `json:"content_type,omitempty"`
+	Integrity       *EvidenceIntegrity `json:"integrity,omitempty"`
+	Failure         *EvidenceFailure   `json:"failure,omitempty"`
+}
+
+type EvidenceIntegrity struct {
+	Algorithm string `json:"algorithm"`
+	Digest    string `json:"digest"`
+	SizeBytes int64  `json:"size_bytes"`
+}
+
+type EvidenceFailure struct {
+	Code      string `json:"code"`
+	Retryable bool   `json:"retryable"`
+}
+
+type IngestResult struct {
+	EventID       string `json:"event_id"`
+	ProducerID    string `json:"producer_id"`
+	SourceEventID string `json:"source_event_id"`
+	Disposition   string `json:"disposition"`
+	PayloadSHA256 string `json:"payload_sha256"`
+}
+
+type Problem struct {
+	Code            string `json:"code"`
+	Message         string `json:"message"`
+	Field           string `json:"field,omitempty"`
+	ExistingEventID string `json:"existing_event_id,omitempty"`
+}
+
+type ParsedEvent struct {
+	Event     Event
+	Canonical json.RawMessage
+	Digest    string
+	Occurred  time.Time
+}
+
+// EvidenceStatus is mutable Bell-owned resolution metadata kept separately
+// from the immutable Event and from Alert acknowledgement/close facts.
+type EvidenceStatus struct {
+	EventID        string          `gorm:"type:uuid;primaryKey"`
+	EvidenceID     string          `gorm:"size:128;primaryKey"`
+	OwnerID        string          `gorm:"size:128;not null;index"`
+	Status         string          `gorm:"size:16;not null"`
+	Resolution     string          `gorm:"size:16;not null;index"`
+	CurrentPayload json.RawMessage `gorm:"column:current_payload;type:jsonb;not null"`
+	LastError      string          `gorm:"size:64;not null;default:''"`
+	ExpiresAt      *time.Time      `gorm:"index"`
+	CheckedAt      *time.Time
+	CreatedAt      time.Time `gorm:"not null"`
+	UpdatedAt      time.Time `gorm:"not null"`
+}
+
+func (EvidenceStatus) TableName() string { return "bell_evidence_status" }

Bell/server/app/bell/integration/event_ingress/replay.go

@@ -0,0 +1,42 @@
+package event_ingress
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+// ReplayToken is Bell-owned security state. It is intentionally separate from
+// business Receipt idempotency and remains effective across process restarts.
+type ReplayToken struct {
+	Principal string    `gorm:"size:128;primaryKey"`
+	TokenID   string    `gorm:"size:64;primaryKey"`
+	ExpiresAt time.Time `gorm:"not null;index"`
+	CreatedAt time.Time `gorm:"not null"`
+}
+
+func (ReplayToken) TableName() string { return "bell_machine_token_replays" }
+
+type PersistentReplayStore struct{ DB *gorm.DB }
+
+func (s PersistentReplayStore) Consume(principal, tokenID string, expiresAt, now time.Time) bool {
+	if s.DB == nil {
+		return false
+	}
+	accepted := false
+	err := s.DB.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Where("expires_at <= ?", now.UTC()).Delete(&ReplayToken{}).Error; err != nil {
+			return err
+		}
+		result := tx.Clauses(clause.OnConflict{DoNothing: true}).Create(&ReplayToken{
+			Principal: principal, TokenID: tokenID, ExpiresAt: expiresAt.UTC(), CreatedAt: now.UTC(),
+		})
+		if result.Error != nil {
+			return result.Error
+		}
+		accepted = result.RowsAffected == 1
+		return nil
+	})
+	return err == nil && accepted
+}

Bell/server/app/bell/integration/event_ingress/runtime.go

@@ -0,0 +1,40 @@
+package event_ingress
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-admin-team/go-admin-core/sdk"
+
+	"go-admin/app/bell/integration/machine_identity"
+)
+
+func RegisterRuntime(engine *gin.Engine) error {
+	enabled := strings.EqualFold(strings.TrimSpace(os.Getenv("BELL_EVENT_INGRESS_ENABLED")), "true")
+	if !enabled {
+		return nil
+	}
+	db := sdk.Runtime.GetDbByKey("")
+	if db == nil {
+		return fmt.Errorf("Bell event ingress database is unavailable")
+	}
+	if !db.Migrator().HasTable(&ReplayToken{}) || !db.Migrator().HasTable(&EvidenceStatus{}) {
+		return fmt.Errorf("Bell event ingress migration is required")
+	}
+	registry, err := machine_identity.LoadRegistry(os.Getenv("BELL_MACHINE_PRINCIPAL_REGISTRY"), "yovision-bell")
+	if err != nil {
+		return fmt.Errorf("load Bell machine identity registry: %w", err)
+	}
+	var resolver EvidenceRefresher
+	if strings.EqualFold(strings.TrimSpace(os.Getenv("BELL_EVIDENCE_RESOLVER_ENABLED")), "true") {
+		resolver, err = LoadEvidenceClient(os.Getenv)
+		if err != nil {
+			return fmt.Errorf("load Bell evidence resolver: %w", err)
+		}
+	}
+	handler := Handler{DB: db, Enabled: true, Resolver: resolver, Verifier: machine_identity.Verifier{Registry: registry, Replay: PersistentReplayStore{DB: db}}}
+	engine.POST("/v1/events", handler.Post)
+	return nil
+}

Bell/server/app/bell/integration/event_ingress/service.go

@@ -0,0 +1,125 @@
+package event_ingress
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+
+	"go-admin/app/bell/event"
+	"go-admin/app/bell/receipt"
+)
+
+var ErrIdempotencyConflict = errors.New("idempotency_conflict")
+
+type EvidenceRefresher interface {
+	Refresh(context.Context, *gorm.DB, EvidenceStatus) error
+}
+
+type Service struct {
+	DB       *gorm.DB
+	Resolver EvidenceRefresher
+}
+
+func (s Service) Ingest(ctx context.Context, parsed ParsedEvent) (IngestResult, error) {
+	if s.DB == nil {
+		return IngestResult{}, errors.New("event database is unavailable")
+	}
+	var output IngestResult
+	err := s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if tx.Dialector.Name() == "postgres" {
+			key := fmt.Sprintf("%d:%s:%s", len(parsed.Event.ProducerID), parsed.Event.ProducerID, parsed.Event.SourceEventID)
+			if err := tx.Exec("SELECT pg_advisory_xact_lock(hashtextextended(?, 0))", key).Error; err != nil {
+				return err
+			}
+		}
+		var existing struct {
+			EventID       string
+			PayloadSHA256 string
+		}
+		err := tx.Model(&receipt.Receipt{}).Clauses(clause.Locking{Strength: "UPDATE"}).
+			Select("event_id", "payload_sha256").Where("producer_id = ? AND source_event_id = ?", parsed.Event.ProducerID, parsed.Event.SourceEventID).First(&existing).Error
+		if err == nil {
+			if existing.PayloadSHA256 != parsed.Digest {
+				output.EventID = existing.EventID
+				return ErrIdempotencyConflict
+			}
+			output = IngestResult{EventID: existing.EventID, ProducerID: parsed.Event.ProducerID, SourceEventID: parsed.Event.SourceEventID, Disposition: "duplicate", PayloadSHA256: parsed.Digest}
+			return tx.Create(&receipt.IngestAudit{ProducerID: parsed.Event.ProducerID, SourceEventID: parsed.Event.SourceEventID, PayloadSHA256: parsed.Digest, Outcome: receipt.OutcomeReplay, ActorID: 0, CreatedAt: time.Now().UTC()}).Error
+		}
+		if !errors.Is(err, gorm.ErrRecordNotFound) {
+			return err
+		}
+		now := time.Now().UTC()
+		eventID := uuid.NewString()
+		var evidenceRef *string
+		if len(parsed.Event.Evidence) > 0 {
+			value := parsed.Event.Evidence[0].EvidenceID
+			evidenceRef = &value
+		}
+		item := event.Event{ID: eventID, ProducerID: parsed.Event.ProducerID, SourceEventID: parsed.Event.SourceEventID,
+			EventType: parsed.Event.EventType, OccurredAt: parsed.Occurred, Location: parsed.Event.SiteRef + "/" + parsed.Event.DeviceRef,
+			Severity: parsed.Event.Severity, EvidenceRef: evidenceRef, NormalizedPayload: parsed.Canonical, PayloadSHA256: parsed.Digest, ReceivedAt: now}
+		receiptItem := receipt.Receipt{ID: uuid.NewString(), EventID: eventID, ProducerID: parsed.Event.ProducerID, SourceEventID: parsed.Event.SourceEventID, PayloadSHA256: parsed.Digest, AcceptedAt: now}
+		if err := tx.Create(&item).Error; err != nil {
+			return err
+		}
+		if err := tx.Create(&receiptItem).Error; err != nil {
+			return err
+		}
+		for _, evidence := range parsed.Event.Evidence {
+			payload, marshalErr := json.Marshal(evidence)
+			if marshalErr != nil {
+				return marshalErr
+			}
+			canonical, canonicalErr := canonicalJSON(payload)
+			if canonicalErr != nil {
+				return canonicalErr
+			}
+			var expiresAt *time.Time
+			if evidence.ExpiresAt != "" {
+				parsedExpiry, parseErr := time.Parse(time.RFC3339Nano, evidence.ExpiresAt)
+				if parseErr != nil {
+					return parseErr
+				}
+				parsedExpiry = parsedExpiry.UTC()
+				expiresAt = &parsedExpiry
+			}
+			status := EvidenceStatus{EventID: eventID, EvidenceID: evidence.EvidenceID, OwnerID: evidence.OwnerID,
+				Status: evidence.Status, Resolution: "snapshot", CurrentPayload: canonical, ExpiresAt: expiresAt, CreatedAt: now, UpdatedAt: now}
+			if err := tx.Create(&status).Error; err != nil {
+				return err
+			}
+		}
+		if err := tx.Create(&receipt.IngestAudit{ProducerID: parsed.Event.ProducerID, SourceEventID: parsed.Event.SourceEventID, PayloadSHA256: parsed.Digest, Outcome: receipt.OutcomeAccepted, ActorID: 0, CreatedAt: now}).Error; err != nil {
+			return err
+		}
+		output = IngestResult{EventID: eventID, ProducerID: parsed.Event.ProducerID, SourceEventID: parsed.Event.SourceEventID, Disposition: "created", PayloadSHA256: parsed.Digest}
+		return nil
+	})
+	if errors.Is(err, ErrIdempotencyConflict) {
+		auditErr := s.DB.WithContext(ctx).Create(&receipt.IngestAudit{ProducerID: parsed.Event.ProducerID, SourceEventID: parsed.Event.SourceEventID, PayloadSHA256: parsed.Digest, Outcome: receipt.OutcomeConflict, ActorID: 0, CreatedAt: time.Now().UTC()}).Error
+		if auditErr != nil {
+			return IngestResult{}, fmt.Errorf("record conflict audit: %w", auditErr)
+		}
+		return output, ErrIdempotencyConflict
+	}
+	if err != nil || s.Resolver == nil {
+		return output, err
+	}
+	var statuses []EvidenceStatus
+	if err = s.DB.WithContext(ctx).Where("event_id = ?", output.EventID).Find(&statuses).Error; err != nil {
+		return IngestResult{}, err
+	}
+	for _, status := range statuses {
+		// Evidence lookup is supplementary. The immutable Event/Receipt boundary
+		// remains accepted even when Sense is unavailable.
+		_ = s.Resolver.Refresh(ctx, s.DB.WithContext(ctx), status)
+	}
+	return output, nil
+}

Bell/server/app/bell/integration/event_ingress/validation.go

@@ -0,0 +1,217 @@
+package event_ingress
+
+import (
+	"bytes"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"math"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+)
+
+var (
+	ErrInvalidEvent      = errors.New("invalid_event")
+	ErrUnsupportedSchema = errors.New("unsupported_schema_version")
+	identifierPattern    = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$`)
+	hexDigestPattern     = regexp.MustCompile(`^[a-f0-9]{64}$`)
+)
+
+func ParseEvent(raw []byte) (ParsedEvent, error) {
+	var event Event
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(&event); err != nil {
+		return ParsedEvent{}, fmt.Errorf("%w: malformed or unknown member", ErrInvalidEvent)
+	}
+	if err := decoder.Decode(&struct{}{}); !errors.Is(err, io.EOF) {
+		return ParsedEvent{}, fmt.Errorf("%w: trailing JSON value", ErrInvalidEvent)
+	}
+	if event.SchemaVersion == "" {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	if event.SchemaVersion != EventSchemaVersion {
+		return ParsedEvent{}, ErrUnsupportedSchema
+	}
+	occurred, err := time.Parse("2006-01-02T15:04:05.000Z", event.OccurredAt)
+	if err != nil || !validID(event.ProducerID) || !validID(event.SourceEventID) || !validID(event.SiteRef) ||
+		!validID(event.DeviceRef) || !validID(event.ProfileRef) || !validID(event.Rule.RuleID) ||
+		!validID(event.Observation.TrackID) || !validID(event.Region.RegionID) || event.Rule.Version == "" ||
+		len(event.Rule.Version) > 64 || event.Model.Name == "" || len(event.Model.Name) > 128 ||
+		event.Model.Version == "" || len(event.Model.Version) > 64 || event.Observation.Confidence < 0 ||
+		event.Observation.Confidence > 1 || math.IsNaN(event.Observation.Confidence) || math.IsInf(event.Observation.Confidence, 0) {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	if event.EventType != "dangerous_area_entered" && event.EventType != "directional_line_crossed" {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	if event.Severity != "low" && event.Severity != "medium" && event.Severity != "high" && event.Severity != "critical" {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	if event.Observation.Category != "person" && event.Observation.Category != "vehicle" && event.Observation.Category != "other" {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	if len(event.Observation.BBoxNormalized) != 0 && len(event.Observation.BBoxNormalized) != 4 {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	for _, value := range event.Observation.BBoxNormalized {
+		if value < 0 || value > 1 || math.IsNaN(value) || math.IsInf(value, 0) {
+			return ParsedEvent{}, ErrInvalidEvent
+		}
+	}
+	if (event.EventType == "dangerous_area_entered" && (event.Region.Kind != "area" || event.Region.CrossingDirection != "")) ||
+		(event.EventType == "directional_line_crossed" && (event.Region.Kind != "line" || (event.Region.CrossingDirection != "a_to_b" && event.Region.CrossingDirection != "b_to_a"))) {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	if event.Evidence == nil || len(event.Evidence) > 8 {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	seenEvidence := map[string]bool{}
+	for _, evidence := range event.Evidence {
+		evidenceJSON, marshalErr := json.Marshal(evidence)
+		canonicalEvidence, canonicalErr := canonicalJSON(evidenceJSON)
+		if err := validateEvidence(evidence); err != nil || marshalErr != nil || canonicalErr != nil || seenEvidence[string(canonicalEvidence)] {
+			return ParsedEvent{}, ErrInvalidEvent
+		}
+		seenEvidence[string(canonicalEvidence)] = true
+	}
+	canonical, err := canonicalJSON(raw)
+	if err != nil {
+		return ParsedEvent{}, ErrInvalidEvent
+	}
+	if containsExplicitNull(raw) {
+		return ParsedEvent{}, fmt.Errorf("%w: optional members must be omitted", ErrInvalidEvent)
+	}
+	digest := sha256.Sum256(canonical)
+	return ParsedEvent{Event: event, Canonical: canonical, Digest: hex.EncodeToString(digest[:]), Occurred: occurred}, nil
+}
+
+func validateEvidence(value Evidence) error {
+	if value.SchemaVersion != EvidenceSchemaVersion || !validID(value.EvidenceID) || !validID(value.OwnerID) ||
+		(value.Type != "snapshot" && value.Type != "clip") {
+		return ErrInvalidEvent
+	}
+	if _, err := time.Parse(time.RFC3339Nano, value.CapturedAt); err != nil {
+		return ErrInvalidEvent
+	}
+	if _, err := time.Parse(time.RFC3339Nano, value.StatusUpdatedAt); err != nil {
+		return ErrInvalidEvent
+	}
+	if value.ExpiresAt != "" {
+		if _, err := time.Parse(time.RFC3339Nano, value.ExpiresAt); err != nil {
+			return ErrInvalidEvent
+		}
+	}
+	switch value.Status {
+	case "pending", "processing":
+		if value.ContentType != "" || value.Integrity != nil || value.Failure != nil {
+			return ErrInvalidEvent
+		}
+	case "success":
+		if value.Integrity == nil || value.Failure != nil || (value.ContentType != "image/jpeg" && value.ContentType != "image/png" && value.ContentType != "video/mp4") ||
+			value.Integrity.Algorithm != "sha256" || !hexDigestPattern.MatchString(value.Integrity.Digest) || value.Integrity.SizeBytes < 0 {
+			return ErrInvalidEvent
+		}
+	case "failed":
+		if value.Failure == nil || value.ContentType != "" || value.Integrity != nil ||
+			(value.Failure.Code != "capture_failed" && value.Failure.Code != "processing_failed" && value.Failure.Code != "expired" && value.Failure.Code != "unavailable") {
+			return ErrInvalidEvent
+		}
+	default:
+		return ErrInvalidEvent
+	}
+	return nil
+}
+
+func canonicalJSON(raw []byte) ([]byte, error) {
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.UseNumber()
+	var value any
+	if err := decoder.Decode(&value); err != nil {
+		return nil, err
+	}
+	value, err := normalizeJCSNumbers(value)
+	if err != nil {
+		return nil, err
+	}
+	var buffer bytes.Buffer
+	encoder := json.NewEncoder(&buffer)
+	encoder.SetEscapeHTML(false)
+	if err := encoder.Encode(value); err != nil {
+		return nil, err
+	}
+	canonical := bytes.TrimSuffix(buffer.Bytes(), []byte("\n"))
+	canonical = bytes.ReplaceAll(canonical, []byte(`\u2028`), []byte("\u2028"))
+	canonical = bytes.ReplaceAll(canonical, []byte(`\u2029`), []byte("\u2029"))
+	return canonical, nil
+}
+
+func normalizeJCSNumbers(value any) (any, error) {
+	switch typed := value.(type) {
+	case json.Number:
+		number, err := strconv.ParseFloat(string(typed), 64)
+		if err != nil || math.IsNaN(number) || math.IsInf(number, 0) {
+			return nil, errors.New("JSON number is outside the RFC 8785 domain")
+		}
+		if number == 0 {
+			return float64(0), nil
+		}
+		return number, nil
+	case []any:
+		for index, item := range typed {
+			normalized, err := normalizeJCSNumbers(item)
+			if err != nil {
+				return nil, err
+			}
+			typed[index] = normalized
+		}
+	case map[string]any:
+		for key, item := range typed {
+			normalized, err := normalizeJCSNumbers(item)
+			if err != nil {
+				return nil, err
+			}
+			typed[key] = normalized
+		}
+	}
+	return value, nil
+}
+
+func containsExplicitNull(raw []byte) bool {
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.UseNumber()
+	var value any
+	if decoder.Decode(&value) != nil {
+		return true
+	}
+	return hasNull(value)
+}
+
+func hasNull(value any) bool {
+	switch typed := value.(type) {
+	case nil:
+		return true
+	case []any:
+		for _, item := range typed {
+			if hasNull(item) {
+				return true
+			}
+		}
+	case map[string]any:
+		for _, item := range typed {
+			if hasNull(item) {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func validID(value string) bool {
+	return identifierPattern.MatchString(value) && !strings.ContainsAny(strings.ToLower(value), "\\/@")
+}

Bell/server/app/bell/integration/machine_identity/registry.go

@@ -0,0 +1,68 @@
+package machine_identity
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"io"
+	"os"
+	"strings"
+)
+
+type registryDocument struct {
+	Version    string              `json:"version"`
+	Audience   string              `json:"audience"`
+	Principals []registryPrincipal `json:"principals"`
+}
+
+type registryPrincipal struct {
+	PrincipalID string        `json:"principal_id"`
+	Enabled     bool          `json:"enabled"`
+	Keys        []registryKey `json:"keys"`
+}
+
+type registryKey struct {
+	KeyID     string   `json:"kid"`
+	PublicKey string   `json:"public_key_base64url"`
+	Status    string   `json:"status"`
+	Scopes    []string `json:"scopes"`
+}
+
+func LoadRegistry(filePath, expectedAudience string) (*Registry, error) {
+	if strings.TrimSpace(filePath) == "" || !validAudiences[expectedAudience] {
+		return nil, errors.New("machine principal registry path and audience are required")
+	}
+	raw, err := os.ReadFile(filePath)
+	if err != nil {
+		return nil, errors.New("read machine principal registry")
+	}
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.DisallowUnknownFields()
+	var document registryDocument
+	if err = decoder.Decode(&document); err != nil {
+		return nil, errors.New("invalid machine principal registry")
+	}
+	if err = decoder.Decode(&struct{}{}); !errors.Is(err, io.EOF) {
+		return nil, errors.New("invalid machine principal registry")
+	}
+	if document.Version != "yovision.machine-principal-registry/v1" || document.Audience != expectedAudience || len(document.Principals) == 0 {
+		return nil, errors.New("invalid machine principal registry")
+	}
+	records := make([]KeyRecord, 0)
+	for _, principal := range document.Principals {
+		if len(principal.Keys) == 0 {
+			return nil, errors.New("invalid machine principal registry")
+		}
+		for _, key := range principal.Keys {
+			publicKey, decodeErr := base64.RawURLEncoding.Strict().DecodeString(key.PublicKey)
+			if decodeErr != nil || len(publicKey) != ed25519.PublicKeySize || (key.Status != "active" && key.Status != "revoked") {
+				return nil, errors.New("invalid machine principal registry")
+			}
+			records = append(records, KeyRecord{Principal: principal.PrincipalID, KeyID: key.KeyID, PublicKey: ed25519.PublicKey(publicKey), Audience: document.Audience,
+				Scopes: key.Scopes, Enabled: principal.Enabled, Revoked: key.Status == "revoked"})
+		}
+	}
+	return NewRegistry(records...)
+}

Bell/server/app/bell/integration/machine_identity/token.go

@@ -0,0 +1,363 @@
+package machine_identity
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/hex"
+	"encoding/json"
+	"encoding/pem"
+	"errors"
+	"fmt"
+	"io"
+	"net/url"
+	"os"
+	"path"
+	"regexp"
+	"slices"
+	"strings"
+	"sync"
+	"time"
+)
+
+var (
+	principalPattern = regexp.MustCompile(`^yv:(sense|brain|bell):[a-z0-9][a-z0-9.-]{0,62}$`)
+	keyIDPattern     = regexp.MustCompile(`^[A-Za-z0-9._-]{8,64}$`)
+	tokenIDPattern   = regexp.MustCompile(`^[A-Za-z0-9_-]{22,64}$`)
+	validAudiences   = map[string]bool{"yovision-sense": true, "yovision-brain": true, "yovision-bell": true}
+	validScopes      = map[string]bool{"source-config:write": true, "runtime-status:write": true, "events:ingest": true, "evidence:read": true}
+)
+
+const (
+	Version       = "yovision.machine-identity/v1"
+	TokenType     = "YOVISION-MACHINE+JWT"
+	MaxLifetime   = 5 * time.Minute
+	AllowedSkew   = 30 * time.Second
+	MaxKeyOverlap = 24 * time.Hour
+)
+
+type Error struct{ Code string }
+
+func (e *Error) Error() string { return e.Code }
+
+func codeError(code string) error { return &Error{Code: code} }
+
+// BearerToken deliberately has no cookie or query fallback.
+func BearerToken(authorization string) (string, error) {
+	parts := strings.Split(authorization, " ")
+	if len(parts) != 2 || !strings.EqualFold(parts[0], "Bearer") || parts[1] == "" || strings.ContainsAny(parts[1], " \t\r\n,") {
+		return "", codeError("machine_token_missing")
+	}
+	return parts[1], nil
+}
+
+type Claims struct {
+	Version    string   `json:"ver"`
+	Issuer     string   `json:"iss"`
+	Subject    string   `json:"sub"`
+	Audience   string   `json:"aud"`
+	Scopes     []string `json:"scope"`
+	IssuedAt   int64    `json:"iat"`
+	NotBefore  int64    `json:"nbf"`
+	ExpiresAt  int64    `json:"exp"`
+	TokenID    string   `json:"jti"`
+	Method     string   `json:"htm"`
+	Path       string   `json:"htu"`
+	BodySHA256 string   `json:"body_sha256"`
+}
+
+type protectedHeader struct {
+	Algorithm string `json:"alg"`
+	Type      string `json:"typ"`
+	KeyID     string `json:"kid"`
+	Version   string `json:"ver"`
+}
+
+type KeyRecord struct {
+	Principal string
+	KeyID     string
+	PublicKey ed25519.PublicKey
+	Audience  string
+	Scopes    []string
+	Enabled   bool
+	Revoked   bool
+}
+
+type Registry struct {
+	mu   sync.RWMutex
+	keys map[string]KeyRecord
+}
+
+func NewRegistry(records ...KeyRecord) (*Registry, error) {
+	r := &Registry{keys: make(map[string]KeyRecord, len(records))}
+	for _, record := range records {
+		if !keyIDPattern.MatchString(record.KeyID) || !principalPattern.MatchString(record.Principal) || !validAudiences[record.Audience] || len(record.PublicKey) != ed25519.PublicKeySize || !validScopeList(record.Scopes) {
+			return nil, errors.New("invalid machine key record")
+		}
+		if _, exists := r.keys[record.KeyID]; exists {
+			return nil, errors.New("duplicate machine key id")
+		}
+		record.PublicKey = slices.Clone(record.PublicKey)
+		record.Scopes = slices.Clone(record.Scopes)
+		r.keys[record.KeyID] = record
+	}
+	return r, nil
+}
+
+func (r *Registry) Lookup(keyID string) (KeyRecord, bool) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	record, ok := r.keys[keyID]
+	record.PublicKey = slices.Clone(record.PublicKey)
+	record.Scopes = slices.Clone(record.Scopes)
+	return record, ok
+}
+
+func (r *Registry) Revoke(keyID string) bool {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	record, ok := r.keys[keyID]
+	if !ok {
+		return false
+	}
+	record.Revoked = true
+	r.keys[keyID] = record
+	return true
+}
+
+type ReplayStore struct {
+	mu   sync.Mutex
+	used map[string]time.Time
+}
+
+// ReplayCache must atomically persist accepted (principal, jti) pairs until
+// expiry. ReplayStore is process-local and intended for tests or a single
+// uninterrupted process; connector implementations inject a durable store.
+type ReplayCache interface {
+	Consume(principal, tokenID string, expiresAt, now time.Time) bool
+}
+
+func NewReplayStore() *ReplayStore { return &ReplayStore{used: map[string]time.Time{}} }
+
+func (s *ReplayStore) Consume(principal, tokenID string, expiresAt, now time.Time) bool {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	for key, expiry := range s.used {
+		if !expiry.After(now) {
+			delete(s.used, key)
+		}
+	}
+	key := principal + "\x00" + tokenID
+	if _, exists := s.used[key]; exists {
+		return false
+	}
+	s.used[key] = expiresAt
+	return true
+}
+
+type Signer struct {
+	Principal  string
+	KeyID      string
+	PrivateKey ed25519.PrivateKey
+	Now        func() time.Time
+}
+
+func LoadPrivateKey(path string) (ed25519.PrivateKey, error) {
+	if strings.TrimSpace(path) == "" {
+		return nil, errors.New("machine private key path is required")
+	}
+	raw, err := os.ReadFile(path)
+	if err != nil {
+		return nil, errors.New("read machine private key")
+	}
+	block, rest := pem.Decode(raw)
+	if block == nil || len(bytes.TrimSpace(rest)) != 0 || block.Type != "PRIVATE KEY" {
+		return nil, errors.New("machine private key must be one PKCS#8 PEM block")
+	}
+	parsed, err := x509.ParsePKCS8PrivateKey(block.Bytes)
+	if err != nil {
+		return nil, errors.New("parse machine private key")
+	}
+	key, ok := parsed.(ed25519.PrivateKey)
+	if !ok || len(key) != ed25519.PrivateKeySize {
+		return nil, errors.New("machine private key is not Ed25519")
+	}
+	return slices.Clone(key), nil
+}
+
+func (s Signer) Mint(audience string, scopes []string, method, requestPath string, body []byte) (string, error) {
+	if !principalPattern.MatchString(s.Principal) || !keyIDPattern.MatchString(s.KeyID) || len(s.PrivateKey) != ed25519.PrivateKeySize || !validAudiences[audience] || !validScopeList(scopes) {
+		return "", errors.New("incomplete machine signer configuration")
+	}
+	normalizedPath, err := normalizePath(requestPath)
+	if err != nil {
+		return "", err
+	}
+	method = strings.ToUpper(method)
+	if !allowedMethod(method) {
+		return "", errors.New("unsupported machine request method")
+	}
+	now := time.Now().UTC()
+	if s.Now != nil {
+		now = s.Now().UTC()
+	}
+	tokenID, err := randomTokenID()
+	if err != nil {
+		return "", err
+	}
+	digest := sha256.Sum256(body)
+	claims := Claims{Version: Version, Issuer: s.Principal, Subject: s.Principal, Audience: audience,
+		Scopes: slices.Clone(scopes), IssuedAt: now.Unix(), NotBefore: now.Unix(), ExpiresAt: now.Add(MaxLifetime).Unix(),
+		TokenID: tokenID, Method: method, Path: normalizedPath, BodySHA256: hex.EncodeToString(digest[:])}
+	header := protectedHeader{Algorithm: "EdDSA", Type: TokenType, KeyID: s.KeyID, Version: Version}
+	headerJSON, _ := json.Marshal(header)
+	claimsJSON, _ := json.Marshal(claims)
+	signingInput := rawBase64(headerJSON) + "." + rawBase64(claimsJSON)
+	signature := ed25519.Sign(s.PrivateKey, []byte(signingInput))
+	return signingInput + "." + rawBase64(signature), nil
+}
+
+type Verifier struct {
+	Registry *Registry
+	Replay   ReplayCache
+	Now      func() time.Time
+}
+
+func (v Verifier) Verify(token, audience, requiredScope, method, requestPath string, body []byte) (Claims, error) {
+	if v.Registry == nil || v.Replay == nil {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	parts := strings.Split(token, ".")
+	if len(parts) != 3 || strings.Contains(token, "=") {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	headerBytes, err := decodeRaw(parts[0])
+	if err != nil {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	var header protectedHeader
+	if err = decodeClosed(headerBytes, &header); err != nil || header.Algorithm != "EdDSA" || header.Type != TokenType || header.Version != Version || !keyIDPattern.MatchString(header.KeyID) {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	record, ok := v.Registry.Lookup(header.KeyID)
+	if !ok {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	signature, err := decodeRaw(parts[2])
+	if err != nil || len(signature) != ed25519.SignatureSize || !ed25519.Verify(record.PublicKey, []byte(parts[0]+"."+parts[1]), signature) {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	if !record.Enabled || record.Revoked {
+		return Claims{}, codeError("machine_identity_revoked")
+	}
+	claimsBytes, err := decodeRaw(parts[1])
+	if err != nil {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	var claims Claims
+	if err = decodeClosed(claimsBytes, &claims); err != nil || !validClaimsShape(claims) || claims.Issuer != record.Principal || claims.Subject != record.Principal {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	now := time.Now().UTC()
+	if v.Now != nil {
+		now = v.Now().UTC()
+	}
+	nowUnix := now.Unix()
+	if claims.ExpiresAt-claims.IssuedAt <= 0 || claims.ExpiresAt-claims.IssuedAt > int64(MaxLifetime/time.Second) ||
+		claims.NotBefore < claims.IssuedAt || claims.NotBefore > claims.ExpiresAt || claims.IssuedAt > nowUnix+int64(AllowedSkew/time.Second) {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	if claims.NotBefore > nowUnix+int64(AllowedSkew/time.Second) || claims.ExpiresAt < nowUnix-int64(AllowedSkew/time.Second) {
+		return Claims{}, codeError("machine_token_expired")
+	}
+	if claims.Audience != audience || record.Audience != audience {
+		return Claims{}, codeError("machine_audience_denied")
+	}
+	if !slices.Contains(claims.Scopes, requiredScope) || !slices.Contains(record.Scopes, requiredScope) {
+		return Claims{}, codeError("machine_scope_denied")
+	}
+	normalizedPath, err := normalizePath(requestPath)
+	digest := sha256.Sum256(body)
+	if err != nil || claims.Method != strings.ToUpper(method) || claims.Path != normalizedPath || claims.BodySHA256 != hex.EncodeToString(digest[:]) {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	if !v.Replay.Consume(claims.Issuer, claims.TokenID, time.Unix(claims.ExpiresAt, 0).Add(AllowedSkew), now) {
+		return Claims{}, codeError("machine_token_replayed")
+	}
+	return claims, nil
+}
+
+func decodeClosed(raw []byte, target any) error {
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(target); err != nil {
+		return err
+	}
+	if err := decoder.Decode(&struct{}{}); !errors.Is(err, io.EOF) {
+		if err == nil {
+			return errors.New("trailing JSON value")
+		}
+		return err
+	}
+	return nil
+}
+
+func validClaimsShape(claims Claims) bool {
+	if claims.Version != Version || !principalPattern.MatchString(claims.Issuer) || claims.Subject != claims.Issuer || !validAudiences[claims.Audience] || !tokenIDPattern.MatchString(claims.TokenID) ||
+		len(claims.Scopes) == 0 || len(claims.Scopes) > 4 || !allowedMethod(claims.Method) || claims.Path == "" || len(claims.BodySHA256) != 64 {
+		return false
+	}
+	if !validScopeList(claims.Scopes) {
+		return false
+	}
+	_, err := hex.DecodeString(claims.BodySHA256)
+	return err == nil
+}
+
+func validScopeList(scopes []string) bool {
+	if len(scopes) == 0 || len(scopes) > 4 {
+		return false
+	}
+	seen := map[string]bool{}
+	for _, scope := range scopes {
+		if !validScopes[scope] || seen[scope] {
+			return false
+		}
+		seen[scope] = true
+	}
+	return true
+}
+
+func normalizePath(value string) (string, error) {
+	parsed, err := url.ParseRequestURI(value)
+	if err != nil || parsed.IsAbs() || parsed.Host != "" || parsed.RawQuery != "" || parsed.Fragment != "" || parsed.Path == "" || !strings.HasPrefix(parsed.Path, "/") || strings.Contains(parsed.Path, "\\") || strings.Contains(parsed.Path, "//") || path.Clean(parsed.Path) != parsed.Path {
+		return "", errors.New("machine request path must be a normalized absolute path without query or fragment")
+	}
+	return parsed.EscapedPath(), nil
+}
+
+func allowedMethod(method string) bool {
+	switch method {
+	case "GET", "POST", "PUT", "PATCH", "DELETE":
+		return true
+	default:
+		return false
+	}
+}
+
+func randomTokenID() (string, error) {
+	raw := make([]byte, 16)
+	if _, err := rand.Read(raw); err != nil {
+		return "", fmt.Errorf("generate machine token id: %w", err)
+	}
+	return rawBase64(raw), nil
+}
+
+func rawBase64(value []byte) string { return base64.RawURLEncoding.EncodeToString(value) }
+
+func decodeRaw(value string) ([]byte, error) {
+	return base64.RawURLEncoding.Strict().DecodeString(value)
+}

Bell/server/app/bell/integration/machine_identity/token_test.go

@@ -0,0 +1,219 @@
+package machine_identity
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+type crossLanguageVector struct {
+	PublicKey string `json:"public_key_base64url"`
+	Token     string `json:"token"`
+	Now       int64  `json:"now"`
+	Audience  string `json:"audience"`
+	Scope     string `json:"required_scope"`
+	Method    string `json:"method"`
+	Path      string `json:"path"`
+	Body      string `json:"body_base64"`
+}
+
+func testIdentity(t *testing.T) (Signer, *Registry, time.Time) {
+	t.Helper()
+	publicKey, privateKey, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	now := time.Unix(1_800_000_000, 0).UTC()
+	registry, err := NewRegistry(KeyRecord{Principal: "yv:sense:site-a", KeyID: "sense-key-0001", PublicKey: publicKey,
+		Audience: "yovision-brain", Scopes: []string{"source-config:write"}, Enabled: true})
+	if err != nil {
+		t.Fatal(err)
+	}
+	return Signer{Principal: "yv:sense:site-a", KeyID: "sense-key-0001", PrivateKey: privateKey, Now: func() time.Time { return now }}, registry, now
+}
+
+func errorCode(t *testing.T, err error) string {
+	t.Helper()
+	var coded *Error
+	if !errors.As(err, &coded) {
+		t.Fatalf("expected coded error, got %v", err)
+	}
+	return coded.Code
+}
+
+func TestMintAndVerifyRequestBoundToken(t *testing.T) {
+	signer, registry, now := testIdentity(t)
+	body := []byte(`{"revision":7}`)
+	token, err := signer.Mint("yovision-brain", []string{"source-config:write"}, "POST", "/machine/v1/source-config", body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	verifier := Verifier{Registry: registry, Replay: NewReplayStore(), Now: func() time.Time { return now }}
+	claims, err := verifier.Verify(token, "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if claims.Issuer != signer.Principal || claims.Subject != signer.Principal || claims.ExpiresAt-claims.IssuedAt != 300 {
+		t.Fatalf("unexpected claims: %+v", claims)
+	}
+}
+
+func TestBearerTokenHasNoCookieOrQueryFallback(t *testing.T) {
+	if token, err := BearerToken("Bearer compact.token.value"); err != nil || token != "compact.token.value" {
+		t.Fatal(err)
+	}
+	for _, value := range []string{"", "compact.token.value", "Bearer", "Bearer one two", "Cookie compact.token.value"} {
+		if _, err := BearerToken(value); errorCode(t, err) != "machine_token_missing" {
+			t.Fatalf("accepted %q", value)
+		}
+	}
+}
+
+func TestRejectsReplayWrongAudienceScopeAndRequest(t *testing.T) {
+	signer, registry, now := testIdentity(t)
+	body := []byte(`{"revision":7}`)
+	mint := func() string {
+		token, err := signer.Mint("yovision-brain", []string{"source-config:write"}, "POST", "/machine/v1/source-config", body)
+		if err != nil {
+			t.Fatal(err)
+		}
+		return token
+	}
+	verifier := Verifier{Registry: registry, Replay: NewReplayStore(), Now: func() time.Time { return now }}
+	token := mint()
+	if _, err := verifier.Verify(token, "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", body); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := verifier.Verify(token, "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", body); errorCode(t, err) != "machine_token_replayed" {
+		t.Fatal(err)
+	}
+	if _, err := verifier.Verify(mint(), "yovision-bell", "source-config:write", "POST", "/machine/v1/source-config", body); errorCode(t, err) != "machine_audience_denied" {
+		t.Fatal(err)
+	}
+	if _, err := verifier.Verify(mint(), "yovision-brain", "events:ingest", "POST", "/machine/v1/source-config", body); errorCode(t, err) != "machine_scope_denied" {
+		t.Fatal(err)
+	}
+	if _, err := verifier.Verify(mint(), "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", []byte("changed")); errorCode(t, err) != "machine_token_invalid" {
+		t.Fatal(err)
+	}
+}
+
+func TestExpiryRevocationAndRotation(t *testing.T) {
+	signer, registry, now := testIdentity(t)
+	body := []byte("{}")
+	token, _ := signer.Mint("yovision-brain", []string{"source-config:write"}, "POST", "/machine/v1/source-config", body)
+	expired := Verifier{Registry: registry, Replay: NewReplayStore(), Now: func() time.Time { return now.Add(6 * time.Minute) }}
+	if _, err := expired.Verify(token, "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", body); errorCode(t, err) != "machine_token_expired" {
+		t.Fatal(err)
+	}
+
+	oldPublic, oldPrivate, _ := ed25519.GenerateKey(rand.Reader)
+	newPublic, newPrivate, _ := ed25519.GenerateKey(rand.Reader)
+	rotation, err := NewRegistry(
+		KeyRecord{Principal: "yv:brain:node-a", KeyID: "brain-old-0001", PublicKey: oldPublic, Audience: "yovision-sense", Scopes: []string{"runtime-status:write"}, Enabled: true},
+		KeyRecord{Principal: "yv:brain:node-a", KeyID: "brain-new-0002", PublicKey: newPublic, Audience: "yovision-sense", Scopes: []string{"runtime-status:write"}, Enabled: true},
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+	oldSigner := Signer{Principal: "yv:brain:node-a", KeyID: "brain-old-0001", PrivateKey: oldPrivate, Now: func() time.Time { return now }}
+	newSigner := Signer{Principal: "yv:brain:node-a", KeyID: "brain-new-0002", PrivateKey: newPrivate, Now: func() time.Time { return now }}
+	oldToken, _ := oldSigner.Mint("yovision-sense", []string{"runtime-status:write"}, "POST", "/machine/v1/runtime-status", body)
+	newToken, _ := newSigner.Mint("yovision-sense", []string{"runtime-status:write"}, "POST", "/machine/v1/runtime-status", body)
+	verify := Verifier{Registry: rotation, Replay: NewReplayStore(), Now: func() time.Time { return now }}
+	if _, err = verify.Verify(oldToken, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); err != nil {
+		t.Fatal(err)
+	}
+	if _, err = verify.Verify(newToken, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); err != nil {
+		t.Fatal(err)
+	}
+	if !rotation.Revoke("brain-old-0001") {
+		t.Fatal("old key was not revoked")
+	}
+	oldAfterRevoke, _ := oldSigner.Mint("yovision-sense", []string{"runtime-status:write"}, "POST", "/machine/v1/runtime-status", body)
+	if _, err = verify.Verify(oldAfterRevoke, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); errorCode(t, err) != "machine_identity_revoked" {
+		t.Fatal(err)
+	}
+}
+
+func TestTransportPolicyRejectsUnsafeTLS(t *testing.T) {
+	safe := TransportPolicy{TLSMinVersion: tls.VersionTLS12, VerifyCertificate: true, VerifyHostname: true,
+		ConnectTimeout: time.Second, ResponseHeaderTimeout: time.Second, RequestTimeout: 2 * time.Second, MaxRequestBytes: 1024}
+	if err := safe.Validate(); err != nil {
+		t.Fatal(err)
+	}
+	unsafe := safe
+	unsafe.VerifyHostname = false
+	if err := unsafe.Validate(); err == nil {
+		t.Fatal("unsafe hostname policy accepted")
+	}
+	unsafe = safe
+	unsafe.TLSMinVersion = tls.VersionTLS11
+	if err := unsafe.Validate(); err == nil {
+		t.Fatal("TLS 1.1 accepted")
+	}
+}
+
+func TestVerifiesCrossLanguageVector(t *testing.T) {
+	vectorPath := filepath.Join("..", "..", "..", "..", "..", "..", "contracts", "tests", "machine-identity-v1", "cross-language-vector.json")
+	raw, err := os.ReadFile(vectorPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var vector crossLanguageVector
+	if err = json.Unmarshal(raw, &vector); err != nil {
+		t.Fatal(err)
+	}
+	publicKey, err := base64.RawURLEncoding.DecodeString(vector.PublicKey)
+	if err != nil {
+		t.Fatal(err)
+	}
+	body, err := base64.StdEncoding.DecodeString(vector.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	registry, err := NewRegistry(KeyRecord{Principal: "yv:brain:vector", KeyID: "brain-vector-0001", PublicKey: ed25519.PublicKey(publicKey), Audience: vector.Audience, Scopes: []string{vector.Scope}, Enabled: true})
+	if err != nil {
+		t.Fatal(err)
+	}
+	verifier := Verifier{Registry: registry, Replay: NewReplayStore(), Now: func() time.Time { return time.Unix(vector.Now, 0) }}
+	claims, err := verifier.Verify(vector.Token, vector.Audience, vector.Scope, vector.Method, vector.Path, body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if claims.Issuer != "yv:brain:vector" {
+		t.Fatalf("unexpected issuer: %s", claims.Issuer)
+	}
+}
+
+func TestLoadsExternalPublicRegistryAndRejectsWrongAudience(t *testing.T) {
+	publicKey, _, _ := ed25519.GenerateKey(rand.Reader)
+	document := map[string]any{
+		"version": "yovision.machine-principal-registry/v1", "audience": "yovision-bell",
+		"principals": []any{map[string]any{"principal_id": "yv:sense:site-a", "enabled": true, "keys": []any{map[string]any{
+			"kid": "sense-key-0001", "public_key_base64url": base64.RawURLEncoding.EncodeToString(publicKey), "status": "active", "scopes": []string{"events:ingest"},
+		}}}},
+	}
+	raw, _ := json.Marshal(document)
+	file := filepath.Join(t.TempDir(), "principals.json")
+	if err := os.WriteFile(file, raw, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	registry, err := LoadRegistry(file, "yovision-bell")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if record, ok := registry.Lookup("sense-key-0001"); !ok || record.Principal != "yv:sense:site-a" {
+		t.Fatal("registry record missing")
+	}
+	if _, err = LoadRegistry(file, "yovision-sense"); err == nil {
+		t.Fatal("wrong registry audience accepted")
+	}
+}

Bell/server/app/bell/integration/machine_identity/transport.go

@@ -0,0 +1,39 @@
+package machine_identity
+
+import (
+	"crypto/tls"
+	"errors"
+	"net/http"
+	"time"
+)
+
+type TransportPolicy struct {
+	TLSMinVersion         uint16
+	VerifyCertificate     bool
+	VerifyHostname        bool
+	ConnectTimeout        time.Duration
+	ResponseHeaderTimeout time.Duration
+	RequestTimeout        time.Duration
+	MaxRequestBytes       int64
+}
+
+func (p TransportPolicy) Validate() error {
+	if p.TLSMinVersion < tls.VersionTLS12 || !p.VerifyCertificate || !p.VerifyHostname || p.ConnectTimeout < 100*time.Millisecond || p.ConnectTimeout > 30*time.Second ||
+		p.ResponseHeaderTimeout < 100*time.Millisecond || p.ResponseHeaderTimeout > 30*time.Second || p.RequestTimeout < 100*time.Millisecond || p.RequestTimeout > 60*time.Second ||
+		p.MaxRequestBytes < 1 || p.MaxRequestBytes > 10*1024*1024 {
+		return errors.New("machine transport policy is unsafe")
+	}
+	return nil
+}
+
+func (p TransportPolicy) HTTPClient() (*http.Client, error) {
+	if err := p.Validate(); err != nil {
+		return nil, err
+	}
+	transport := &http.Transport{
+		TLSClientConfig:       &tls.Config{MinVersion: p.TLSMinVersion},
+		TLSHandshakeTimeout:   p.ConnectTimeout,
+		ResponseHeaderTimeout: p.ResponseHeaderTimeout,
+	}
+	return &http.Client{Transport: transport, Timeout: p.RequestTimeout}, nil
+}

Bell/server/app/bell/router/contact.go

@@ -0,0 +1,21 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
+
+	"go-admin/app/bell/contact"
+	"go-admin/common/middleware"
+)
+
+func init() { registrars = append(registrars, registerContactRouter) }
+func registerContactRouter(v1 *gin.RouterGroup, auth *jwt.GinJWTMiddleware) {
+	h := contact.Handler{}
+	secured := v1.Group("").Use(auth.MiddlewareFunc()).Use(middleware.AuthCheckRole())
+	secured.GET("/contacts", h.List)
+	secured.POST("/contacts", h.Create)
+	secured.PUT("/contacts/:id", h.Update)
+	secured.PUT("/contacts/:id/enabled", h.SetEnabled)
+	secured.POST("/contacts/:id/channels", h.AddChannel)
+	secured.POST("/contact-channels/:id/validations", h.ValidateChannel)
+}

Bell/server/app/bell/router/duty_schedule.go

@@ -0,0 +1,22 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
+
+	"go-admin/app/bell/duty_schedule"
+	"go-admin/common/middleware"
+)
+
+func init() { registrars = append(registrars, registerDutyScheduleRouter) }
+func registerDutyScheduleRouter(v1 *gin.RouterGroup, auth *jwt.GinJWTMiddleware) {
+	h := duty_schedule.Handler{}
+	secured := v1.Group("").Use(auth.MiddlewareFunc()).Use(middleware.AuthCheckRole())
+	secured.GET("/duty-groups", h.List)
+	secured.POST("/duty-groups", h.CreateGroup)
+	secured.PUT("/duty-groups/:id", h.UpdateGroup)
+	secured.POST("/duty-groups/:id/members", h.AddMember)
+	secured.POST("/duty-groups/:id/schedules", h.CreateSchedule)
+	secured.POST("/duty-schedules/:id/publish", h.Publish)
+	secured.POST("/duty-groups/:id/overrides", h.CreateOverride)
+}

Bell/server/app/bell/router/registry.go

@@ -9,6 +9,7 @@ import (
 	"github.com/go-admin-team/go-admin-core/sdk/config"
 	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
 
+	"go-admin/app/bell/integration/event_ingress"
 	"go-admin/app/bell/synthetic"
 	"go-admin/common/middleware"
 )
@@ -32,6 +33,9 @@ func InitRouter() {
 	for _, register := range registrars {
 		register(v1, authMiddleware)
 	}
+	if err := event_ingress.RegisterRuntime(engine); err != nil {
+		log.Errorf("Bell event ingress init error: %v", err)
+	}
 	if synthetic.Enabled(config.ApplicationConfig.Mode, os.Getenv) {
 		registerSyntheticRouter(v1, authMiddleware)
 	}

Bell/server/cmd/api/server.go

@@ -21,6 +21,7 @@ import (
 	"go-admin/app/admin/models"
 	"go-admin/app/admin/router"
 	"go-admin/app/bell/alert_lifecycle"
+	"go-admin/app/bell/contact"
 	bellrouter "go-admin/app/bell/router"
 	"go-admin/app/bell/synthetic"
 	"go-admin/common/bellconfig"
@@ -184,7 +185,8 @@ func initRouter() {
 		Use(common.RequestId(pkg.TrafficKey)).
 		Use(api.SetRequestLogger).
 		Use(synthetic.RedactRequestBody()).
-		Use(alert_lifecycle.RedactRequestBody())
+		Use(alert_lifecycle.RedactRequestBody()).
+		Use(contact.RedactRequestBody())
 
 	common.InitMiddleware(r)
 

Bell/server/cmd/migrate/migration/version/2026083112000_event_ingress.go

@@ -0,0 +1,29 @@
+package version
+
+import (
+	"runtime"
+
+	"go-admin/app/bell/integration/event_ingress"
+	"go-admin/cmd/migrate/migration"
+	common "go-admin/common/models"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+func init() {
+	_, fileName, _, _ := runtime.Caller(0)
+	migration.Migrate.SetVersion(migration.GetFilename(fileName), migrateBellEventIngress)
+}
+
+func migrateBellEventIngress(db *gorm.DB, version string) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.AutoMigrate(
+			&event_ingress.ReplayToken{},
+			&event_ingress.EvidenceStatus{},
+		); err != nil {
+			return err
+		}
+		return tx.Clauses(clause.OnConflict{DoNothing: true}).Create(&common.Migration{Version: version}).Error
+	})
+}

Bell/server/cmd/migrate/migration/version/2026083112000_event_ingress_test.go

@@ -0,0 +1,65 @@
+package version
+
+import (
+	"testing"
+	"time"
+
+	"go-admin/app/bell/integration/event_ingress"
+	common "go-admin/common/models"
+
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestBellEventIngressMigrationIsIdempotent(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&common.Migration{}); err != nil {
+		t.Fatal(err)
+	}
+
+	const version = "2026083112000"
+	for attempt := 0; attempt < 2; attempt++ {
+		if err = migrateBellEventIngress(db, version); err != nil {
+			t.Fatalf("migration attempt %d: %v", attempt+1, err)
+		}
+	}
+
+	for name, model := range map[string]any{
+		"replay tokens":     &event_ingress.ReplayToken{},
+		"evidence statuses": &event_ingress.EvidenceStatus{},
+	} {
+		if !db.Migrator().HasTable(model) {
+			t.Fatalf("%s table missing", name)
+		}
+		var count int64
+		if err = db.Model(model).Count(&count).Error; err != nil {
+			t.Fatalf("count %s: %v", name, err)
+		}
+		if count != 0 {
+			t.Fatalf("migration inserted %d %s fixtures", count, name)
+		}
+	}
+	if !db.Migrator().HasIndex(&event_ingress.ReplayToken{}, "ExpiresAt") {
+		t.Fatal("replay expiry index missing")
+	}
+
+	now := time.Now().UTC()
+	token := event_ingress.ReplayToken{Principal: "brain", TokenID: "token-1", ExpiresAt: now.Add(time.Minute), CreatedAt: now}
+	if err = db.Create(&token).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Create(&token).Error; err == nil {
+		t.Fatal("duplicate replay token accepted")
+	}
+
+	var applied int64
+	if err = db.Model(&common.Migration{}).Where("version = ?", version).Count(&applied).Error; err != nil {
+		t.Fatal(err)
+	}
+	if applied != 1 {
+		t.Fatalf("migration records=%d, want 1", applied)
+	}
+}

Bell/server/cmd/migrate/migration/version/2026090110000_contact_schedule.go

@@ -0,0 +1,160 @@
+package version
+
+import (
+	"fmt"
+	"runtime"
+
+	"go-admin/app/bell/contact"
+	duty "go-admin/app/bell/duty_schedule"
+	"go-admin/cmd/migrate/migration"
+	common "go-admin/common/models"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+func init() {
+	_, fileName, _, _ := runtime.Caller(0)
+	migration.Migrate.SetVersion(migration.GetFilename(fileName), migrateBellContactSchedule)
+}
+func migrateBellContactSchedule(db *gorm.DB, version string) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.AutoMigrate(&contact.Contact{}, &contact.Channel{}, &contact.ChannelValidation{}, &contact.AuditFact{}, &duty.Group{}, &duty.Member{}, &duty.ScheduleVersion{}, &duty.RotationSlot{}, &duty.Override{}, &duty.AuditFact{}); err != nil {
+			return err
+		}
+		if tx.Dialector.Name() == "postgres" {
+			for _, sql := range contactScheduleSQL {
+				if err := tx.Exec(sql).Error; err != nil {
+					return err
+				}
+			}
+			if err := seedContactScheduleAccess(tx); err != nil {
+				return err
+			}
+		}
+		return tx.Clauses(clause.OnConflict{DoNothing: true}).Create(&common.Migration{Version: version}).Error
+	})
+}
+
+var contactScheduleSQL = []string{
+	`ALTER TABLE bell_contacts ADD CONSTRAINT bell_contacts_version_check CHECK (version > 0)`,
+	`ALTER TABLE bell_contact_channels ADD CONSTRAINT bell_contact_channels_kind_check CHECK (kind IN ('sms','voice'))`,
+	`ALTER TABLE bell_contact_channels ADD CONSTRAINT bell_contact_channels_contact_fk FOREIGN KEY (contact_id) REFERENCES bell_contacts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`CREATE UNIQUE INDEX bell_contact_channel_identity_idx ON bell_contact_channels(contact_id,kind,address_fingerprint)`,
+	`CREATE TRIGGER bell_contact_channels_immutable BEFORE UPDATE OR DELETE ON bell_contact_channels FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`ALTER TABLE bell_contact_channel_validations ADD CONSTRAINT bell_contact_validation_status_check CHECK (status IN ('verified','failed'))`,
+	`ALTER TABLE bell_contact_channel_validations ADD CONSTRAINT bell_contact_validation_channel_fk FOREIGN KEY (channel_id) REFERENCES bell_contact_channels(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_contact_audit_facts ADD CONSTRAINT bell_contact_audit_contact_fk FOREIGN KEY (contact_id) REFERENCES bell_contacts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_duty_groups ADD CONSTRAINT bell_duty_groups_version_check CHECK (version > 0)`,
+	`ALTER TABLE bell_duty_members ADD CONSTRAINT bell_duty_member_role_check CHECK (role IN ('primary','backup'))`,
+	`ALTER TABLE bell_duty_members ADD CONSTRAINT bell_duty_member_group_fk FOREIGN KEY (group_id) REFERENCES bell_duty_groups(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_duty_members ADD CONSTRAINT bell_duty_member_contact_fk FOREIGN KEY (contact_id) REFERENCES bell_contacts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`CREATE UNIQUE INDEX bell_duty_schedule_group_version_idx ON bell_duty_schedule_versions(group_id,version)`,
+	`ALTER TABLE bell_duty_schedule_versions ADD CONSTRAINT bell_duty_schedule_status_check CHECK (status IN ('draft','published'))`,
+	`ALTER TABLE bell_duty_schedule_versions ADD CONSTRAINT bell_duty_schedule_group_fk FOREIGN KEY (group_id) REFERENCES bell_duty_groups(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`CREATE OR REPLACE FUNCTION bell_guard_schedule_version() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN IF TG_OP = 'DELETE' OR OLD.status = 'published' THEN RAISE EXCEPTION 'Bell published schedule cannot be changed' USING ERRCODE = '55000'; END IF; IF NEW.status <> 'published' OR OLD.status <> 'draft' THEN RAISE EXCEPTION 'Bell schedule transition is invalid' USING ERRCODE = '55000'; END IF; RETURN NEW; END $$`,
+	`CREATE TRIGGER bell_duty_schedule_version_guard BEFORE UPDATE OR DELETE ON bell_duty_schedule_versions FOR EACH ROW EXECUTE FUNCTION bell_guard_schedule_version()`,
+	`ALTER TABLE bell_duty_rotation_slots ADD CONSTRAINT bell_duty_slot_range_check CHECK (weekday BETWEEN 0 AND 6 AND start_minute >= 0 AND end_minute <= 1440 AND start_minute < end_minute AND primary_contact_id <> backup_contact_id)`,
+	`ALTER TABLE bell_duty_rotation_slots ADD CONSTRAINT bell_duty_slot_version_fk FOREIGN KEY (schedule_version_id) REFERENCES bell_duty_schedule_versions(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_duty_rotation_slots ADD CONSTRAINT bell_duty_slot_primary_fk FOREIGN KEY (primary_contact_id) REFERENCES bell_contacts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_duty_rotation_slots ADD CONSTRAINT bell_duty_slot_backup_fk FOREIGN KEY (backup_contact_id) REFERENCES bell_contacts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_duty_overrides ADD CONSTRAINT bell_duty_override_range_check CHECK (starts_at < ends_at AND original_contact_id <> replacement_contact_id)`,
+	`ALTER TABLE bell_duty_overrides ADD CONSTRAINT bell_duty_override_group_fk FOREIGN KEY (group_id) REFERENCES bell_duty_groups(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_duty_overrides ADD CONSTRAINT bell_duty_override_original_fk FOREIGN KEY (original_contact_id) REFERENCES bell_contacts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_duty_overrides ADD CONSTRAINT bell_duty_override_replacement_fk FOREIGN KEY (replacement_contact_id) REFERENCES bell_contacts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_duty_audit_facts ADD CONSTRAINT bell_duty_audit_group_fk FOREIGN KEY (group_id) REFERENCES bell_duty_groups(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`CREATE TRIGGER bell_contact_validations_immutable BEFORE UPDATE OR DELETE ON bell_contact_channel_validations FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`CREATE TRIGGER bell_contact_audit_immutable BEFORE UPDATE OR DELETE ON bell_contact_audit_facts FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`CREATE TRIGGER bell_duty_slots_immutable BEFORE UPDATE OR DELETE ON bell_duty_rotation_slots FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`CREATE TRIGGER bell_duty_overrides_immutable BEFORE UPDATE OR DELETE ON bell_duty_overrides FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`CREATE TRIGGER bell_duty_audit_immutable BEFORE UPDATE OR DELETE ON bell_duty_audit_facts FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+}
+
+type contactScheduleSeed struct {
+	ID     int
+	Path   string
+	Action string
+}
+
+func seedContactScheduleAccess(tx *gorm.DB) error {
+	if err := tx.Exec(`SELECT setval(pg_get_serial_sequence('sys_menu','menu_id'),GREATEST((SELECT max(menu_id) FROM sys_menu),1));SELECT setval(pg_get_serial_sequence('sys_api','id'),GREATEST((SELECT max(id) FROM sys_api),1))`).Error; err != nil {
+		return err
+	}
+	var rootID int
+	if err := tx.Raw("SELECT menu_id FROM sys_menu WHERE path='/bell' AND parent_id=0 ORDER BY menu_id LIMIT 1").Scan(&rootID).Error; err != nil || rootID == 0 {
+		return fmt.Errorf("Bell menu root missing")
+	}
+	contacts, err := insertContactScheduleMenu(tx, rootID, "BellContacts", "联系人与通道", "user", "contacts", "C", "bell:contact:list", "", "/bell/contacts/index", 4)
+	if err != nil {
+		return err
+	}
+	dutyMenu, err := insertContactScheduleMenu(tx, rootID, "BellDutySchedules", "值班排班", "time", "duty-schedules", "C", "bell:duty:list", "", "/bell/duty-schedules/index", 5)
+	if err != nil {
+		return err
+	}
+	contactWrite, err := insertContactScheduleMenu(tx, contacts.ID, "", "维护联系人", "", "", "F", "bell:contact:write", "POST", "", 1)
+	if err != nil {
+		return err
+	}
+	dutyWrite, err := insertContactScheduleMenu(tx, dutyMenu.ID, "", "维护排班", "", "", "F", "bell:duty:write", "POST", "", 1)
+	if err != nil {
+		return err
+	}
+	specs := []struct{ title, path, action string }{
+		{"联系人列表", "/api/v1/bell/contacts", "GET"}, {"新增联系人", "/api/v1/bell/contacts", "POST"}, {"修改联系人", "/api/v1/bell/contacts/:id", "PUT"}, {"启停联系人", "/api/v1/bell/contacts/:id/enabled", "PUT"}, {"新增联系通道", "/api/v1/bell/contacts/:id/channels", "POST"}, {"记录通道验证", "/api/v1/bell/contact-channels/:id/validations", "POST"},
+		{"值班组列表", "/api/v1/bell/duty-groups", "GET"}, {"新增值班组", "/api/v1/bell/duty-groups", "POST"}, {"修改值班组", "/api/v1/bell/duty-groups/:id", "PUT"}, {"保存值班成员", "/api/v1/bell/duty-groups/:id/members", "POST"}, {"新增排班版本", "/api/v1/bell/duty-groups/:id/schedules", "POST"}, {"发布排班版本", "/api/v1/bell/duty-schedules/:id/publish", "POST"}, {"新增临时替班", "/api/v1/bell/duty-groups/:id/overrides", "POST"},
+	}
+	apis := make([]contactScheduleSeed, 0, len(specs))
+	for _, s := range specs {
+		v, e := insertContactScheduleAPI(tx, s.title, s.path, s.action)
+		if e != nil {
+			return e
+		}
+		apis = append(apis, v)
+	}
+	links := map[int][]contactScheduleSeed{contacts.ID: {apis[0]}, contactWrite.ID: apis[1:6], dutyMenu.ID: {apis[6]}, dutyWrite.ID: apis[7:]}
+	for menu, items := range links {
+		for _, item := range items {
+			if err := tx.Exec("INSERT INTO sys_menu_api_rule(sys_menu_menu_id,sys_api_id) VALUES(?,?) ON CONFLICT DO NOTHING", menu, item.ID).Error; err != nil {
+				return err
+			}
+		}
+	}
+	var operator int
+	if err := tx.Raw("SELECT role_id FROM sys_role WHERE role_key='operator' AND deleted_at IS NULL ORDER BY role_id LIMIT 1").Scan(&operator).Error; err != nil {
+		return err
+	}
+	if operator != 0 {
+		for _, menu := range []contactScheduleSeed{contacts, dutyMenu} {
+			if err := tx.Exec("INSERT INTO sys_role_menu(role_id,menu_id) VALUES(?,?) ON CONFLICT DO NOTHING", operator, menu.ID).Error; err != nil {
+				return err
+			}
+		}
+		for _, item := range []contactScheduleSeed{apis[0], apis[6]} {
+			if err := tx.Exec("INSERT INTO casbin_rule(ptype,v0,v1,v2,v3,v4,v5) VALUES('p','operator',?,?, '', '', '') ON CONFLICT DO NOTHING", item.Path, item.Action).Error; err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+func insertContactScheduleMenu(tx *gorm.DB, parent int, name, title, icon, path, menuType, permission, action, component string, sort int) (contactScheduleSeed, error) {
+	var id int
+	err := tx.Raw(`INSERT INTO sys_menu(menu_name,title,icon,path,paths,menu_type,action,permission,parent_id,no_cache,breadcrumb,component,sort,visible,is_frame,create_by,update_by,created_at,updated_at) VALUES(?,?,?,?, '',?,?,?,?,false,'',?,?, '0','1',1,1,now(),now()) RETURNING menu_id`, name, title, icon, path, menuType, action, permission, parent, component, sort).Scan(&id).Error
+	if err != nil {
+		return contactScheduleSeed{}, err
+	}
+	var parentPaths string
+	if err = tx.Raw("SELECT paths FROM sys_menu WHERE menu_id=?", parent).Scan(&parentPaths).Error; err != nil {
+		return contactScheduleSeed{}, err
+	}
+	if err = tx.Exec("UPDATE sys_menu SET paths=? WHERE menu_id=?", fmt.Sprintf("%s/%d", parentPaths, id), id).Error; err != nil {
+		return contactScheduleSeed{}, err
+	}
+	return contactScheduleSeed{ID: id}, nil
+}
+func insertContactScheduleAPI(tx *gorm.DB, title, path, action string) (contactScheduleSeed, error) {
+	var id int
+	err := tx.Raw(`INSERT INTO sys_api(handle,title,path,type,action,created_at,updated_at,create_by,update_by) VALUES('',?,?, 'BUS',?,now(),now(),1,1) RETURNING id`, title, path, action).Scan(&id).Error
+	return contactScheduleSeed{ID: id, Path: path, Action: action}, err
+}

Bell/server/cmd/migrate/migration/version/2026090110000_contact_schedule_test.go

@@ -0,0 +1,36 @@
+package version
+
+import (
+	"testing"
+
+	"go-admin/app/bell/contact"
+	duty "go-admin/app/bell/duty_schedule"
+	common "go-admin/common/models"
+
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestBellContactScheduleMigrationIsIdempotent(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&common.Migration{}); err != nil {
+		t.Fatal(err)
+	}
+	for i := 0; i < 2; i++ {
+		if err = migrateBellContactSchedule(db, "2026090110000"); err != nil {
+			t.Fatalf("attempt %d: %v", i+1, err)
+		}
+	}
+	for name, model := range map[string]any{"contacts": &contact.Contact{}, "channels": &contact.Channel{}, "validations": &contact.ChannelValidation{}, "groups": &duty.Group{}, "members": &duty.Member{}, "versions": &duty.ScheduleVersion{}, "slots": &duty.RotationSlot{}, "overrides": &duty.Override{}} {
+		if !db.Migrator().HasTable(model) {
+			t.Fatalf("%s table missing", name)
+		}
+	}
+	var count int64
+	if err = db.Model(&common.Migration{}).Where("version=?", "2026090110000").Count(&count).Error; err != nil || count != 1 {
+		t.Fatalf("migration records=%d err=%v", count, err)
+	}
+}

Bell/server/tests/bell_contact_schedule/integration_test.go

@@ -0,0 +1,169 @@
+package bell_contact_schedule_test
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	adminmodels "go-admin/app/admin/models"
+	"go-admin/app/bell/contact"
+	duty "go-admin/app/bell/duty_schedule"
+
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+)
+
+func TestContactSchedulePostgres(t *testing.T) {
+	dsn := os.Getenv("BELL_CONTACT_SCHEDULE_TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("set BELL_CONTACT_SCHEDULE_TEST_DATABASE_URL to run PostgreSQL verification")
+	}
+	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	ctx := context.Background()
+	key := []byte("0123456789abcdef0123456789abcdef")
+	contacts := contact.NewService(db, key)
+
+	primary, err := contacts.Create(ctx, contact.WriteInput{Name: "联系人甲", Role: "主值班"}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	backup, err := contacts.Create(ctx, contact.WriteInput{Name: "联系人乙", Role: "备值班"}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	primaryChannel, err := contacts.AddChannel(ctx, primary.ID, contact.ChannelInput{Kind: "sms", Address: "+8613800000001"}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	backupChannel, err := contacts.AddChannel(ctx, backup.ID, contact.ChannelInput{Kind: "voice", Address: "+8613800000002"}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if strings.Contains(primaryChannel.AddressMasked, "13800000001") {
+		t.Fatal("channel response leaked address")
+	}
+	plain, err := contacts.DecryptChannelAddress(ctx, primaryChannel.ID)
+	if err != nil || plain != "+8613800000001" {
+		t.Fatalf("server-only decrypt failed: %q %v", plain, err)
+	}
+	encoded, _ := json.Marshal(primaryChannel)
+	if strings.Contains(string(encoded), plain) {
+		t.Fatal("serialized channel leaked plaintext")
+	}
+	if _, err = contacts.RecordValidation(ctx, primaryChannel.ID, "verified", "合成验证", 1); err != nil {
+		t.Fatal(err)
+	}
+	if _, err = contacts.RecordValidation(ctx, backupChannel.ID, "verified", "合成验证", 1); err != nil {
+		t.Fatal(err)
+	}
+	if _, err = contacts.Update(ctx, primary.ID, contact.WriteInput{Name: "联系人甲", Role: "主值班", ExpectedVersion: 99}, 1); !errors.Is(err, contact.ErrConflict) {
+		t.Fatalf("stale contact update err=%v", err)
+	}
+	if _, err = contacts.SetEnabled(ctx, primary.ID, false, primary.Version, 1); err != nil {
+		t.Fatal(err)
+	}
+	listed, _, err := contacts.List(ctx, contact.PageQuery{PageIndex: 1, PageSize: 20})
+	if err != nil || len(listed) != 2 {
+		t.Fatalf("contact list len=%d err=%v", len(listed), err)
+	}
+	var primaryView *contact.ContactView
+	for index := range listed {
+		if listed[index].ID == primary.ID {
+			primaryView = &listed[index]
+		}
+	}
+	if primaryView == nil || primaryView.Enabled || len(primaryView.Channels) != 1 || primaryView.Channels[0].Status != "verified" {
+		t.Fatalf("contact enabled state was coupled to validation: %#v", primaryView)
+	}
+	// Re-enable with the new version before assigning duty.
+	var disabled contact.Contact
+	if err = db.First(&disabled, "id=?", primary.ID).Error; err != nil {
+		t.Fatal(err)
+	}
+	if _, err = contacts.SetEnabled(ctx, primary.ID, true, disabled.Version, 1); err != nil {
+		t.Fatal(err)
+	}
+
+	duties := duty.NewService(db)
+	group, err := duties.CreateGroup(ctx, duty.GroupInput{Name: "夜间值班组", Timezone: "Asia/Shanghai"}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err = duties.AddMember(ctx, group.ID, duty.MemberInput{ContactID: primary.ID, Role: "primary"}, 1); err != nil {
+		t.Fatal(err)
+	}
+	if _, err = duties.AddMember(ctx, group.ID, duty.MemberInput{ContactID: backup.ID, Role: "backup"}, 1); err != nil {
+		t.Fatal(err)
+	}
+	if _, err = duties.CreateSchedule(ctx, group.ID, duty.ScheduleInput{EffectiveFrom: time.Now().UTC().Add(time.Hour), Slots: []duty.SlotInput{{Weekday: 0, StartMinute: 0, EndMinute: 720, PrimaryContactID: primary.ID, BackupContactID: backup.ID}}}, 1); !errors.Is(err, duty.ErrCoverage) {
+		t.Fatalf("schedule gap was accepted: %v", err)
+	}
+	slots := make([]duty.SlotInput, 0, 7)
+	for day := 0; day < 7; day++ {
+		slots = append(slots, duty.SlotInput{Weekday: day, StartMinute: 0, EndMinute: 1440, PrimaryContactID: primary.ID, BackupContactID: backup.ID})
+	}
+	v1, err := duties.CreateSchedule(ctx, group.ID, duty.ScheduleInput{EffectiveFrom: time.Now().UTC().Add(time.Hour), Slots: slots}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	published, err := duties.Publish(ctx, v1.ID, 1)
+	if err != nil || published.Status != "published" {
+		t.Fatalf("publish status=%s err=%v", published.Status, err)
+	}
+	v2, err := duties.CreateSchedule(ctx, group.ID, duty.ScheduleInput{EffectiveFrom: time.Now().UTC().Add(24 * time.Hour), Slots: slots}, 1)
+	if err != nil || v2.Version != 2 {
+		t.Fatalf("second version=%d err=%v", v2.Version, err)
+	}
+	var persisted duty.ScheduleVersion
+	if err = db.First(&persisted, "id=?", v1.ID).Error; err != nil || persisted.Version != 1 || persisted.Status != "published" {
+		t.Fatalf("historical version changed: %#v err=%v", persisted, err)
+	}
+	now := time.Now().UTC().Add(2 * time.Hour)
+	if _, err = duties.CreateOverride(ctx, group.ID, duty.OverrideInput{OriginalContactID: primary.ID, ReplacementContactID: backup.ID, StartsAt: now, EndsAt: now.Add(time.Hour), Reason: "合成替班"}, 1); err != nil {
+		t.Fatal(err)
+	}
+	if _, err = duties.CreateOverride(ctx, group.ID, duty.OverrideInput{OriginalContactID: primary.ID, ReplacementContactID: backup.ID, StartsAt: now.Add(30 * time.Minute), EndsAt: now.Add(90 * time.Minute), Reason: "重叠替班"}, 1); !errors.Is(err, duty.ErrConflict) {
+		t.Fatalf("overlap err=%v", err)
+	}
+
+	if err = db.Model(&contact.ChannelValidation{}).Where("channel_id=?", primaryChannel.ID).Update("detail", "tampered").Error; err == nil {
+		t.Fatal("validation fact was mutable")
+	}
+	if err = db.Model(&duty.RotationSlot{}).Where("schedule_version_id=?", v1.ID).Update("start_minute", 1).Error; err == nil {
+		t.Fatal("published rotation slot was mutable")
+	}
+	if err = db.Model(&duty.ScheduleVersion{}).Where("id=?", v1.ID).Update("effective_from", time.Now().UTC()).Error; err == nil {
+		t.Fatal("published schedule version was mutable")
+	}
+	var menus, reads, writes int64
+	if err = db.Table("sys_role_menu rm").Joins("JOIN sys_role r ON r.role_id=rm.role_id").Joins("JOIN sys_menu m ON m.menu_id=rm.menu_id").Where("r.role_key=? AND m.path IN ?", "operator", []string{"contacts", "duty-schedules"}).Count(&menus).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Table("casbin_rule").Where("v0=? AND v2=? AND v1 IN ?", "operator", "GET", []string{"/api/v1/bell/contacts", "/api/v1/bell/duty-groups"}).Count(&reads).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Table("casbin_rule").Where("v0=? AND v2<>? AND (v1 LIKE ? OR v1 LIKE ?)", "operator", "GET", "/api/v1/bell/contacts%", "/api/v1/bell/duty-%").Count(&writes).Error; err != nil {
+		t.Fatal(err)
+	}
+	if menus != 2 || reads != 2 || writes != 0 {
+		t.Fatalf("operator access escaped scope: menus=%d reads=%d writes=%d", menus, reads, writes)
+	}
+	password := os.Getenv("BELL_RULE_ALERT_OPERATOR_PASSWORD")
+	if password != "" {
+		var roleID int
+		if err = db.Table("sys_role").Select("role_id").Where("role_key=?", "operator").Scan(&roleID).Error; err != nil || roleID == 0 {
+			t.Fatalf("operator role id=%d err=%v", roleID, err)
+		}
+		user := adminmodels.SysUser{Username: "bell_132_operator", Password: password, NickName: "Bell 处置员", RoleId: roleID, DeptId: 1, PostId: 1, Status: "2"}
+		if err = db.Create(&user).Error; err != nil {
+			t.Fatal(err)
+		}
+	}
+}

Bell/server/tests/bell_contact_schedule/run-postgres.ps1

@@ -0,0 +1,124 @@
+[CmdletBinding()]
+param([string]$PostgresBin = 'D:\pgsql17\bin')
+
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$pgStarted = $false
+$server = $null
+$testRoot = Join-Path ([IO.Path]::GetTempPath()) ('yovision-bell-183-' + [guid]::NewGuid().ToString('N'))
+$data = Join-Path $testRoot 'postgres'
+$log = Join-Path $testRoot 'postgres.log'
+$pgOut = Join-Path $testRoot 'pg.out'
+$pgErr = Join-Path $testRoot 'pg.err'
+$serverOut = Join-Path $testRoot 'bell.out.log'
+$serverErr = Join-Path $testRoot 'bell.err.log'
+$serverExe = Join-Path $testRoot 'bell-server.exe'
+$serverRoot = (Resolve-Path (Join-Path $PSScriptRoot '..\..')).Path
+
+function Get-FreePort {
+    $listener = [Net.Sockets.TcpListener]::new([Net.IPAddress]::Loopback, 0)
+    try { $listener.Start(); return ([Net.IPEndPoint]$listener.LocalEndpoint).Port } finally { $listener.Stop() }
+}
+function Wait-Port([int]$Port) {
+    for ($attempt = 0; $attempt -lt 120; $attempt++) {
+        try {
+            $client = [Net.Sockets.TcpClient]::new()
+            $open = $client.ConnectAsync('127.0.0.1', $Port).Wait(250) -and $client.Connected
+            $client.Dispose()
+            if ($open) { return }
+        } catch {}
+        Start-Sleep -Milliseconds 250
+    }
+    throw "PostgreSQL port $Port did not open"
+}
+function Wait-Health([string]$BaseUrl) {
+    for ($attempt = 0; $attempt -lt 100; $attempt++) {
+        try {
+            $health = Invoke-RestMethod -Uri "$BaseUrl/healthz" -TimeoutSec 2 -NoProxy
+            if ($health.status -eq 'ok') { return }
+        } catch {}
+        Start-Sleep -Milliseconds 300
+    }
+    throw 'Bell health endpoint did not become ready'
+}
+
+New-Item -ItemType Directory -Path $testRoot | Out-Null
+$pgPort = Get-FreePort
+$bellPort = Get-FreePort
+$baseUrl = "http://127.0.0.1:$bellPort"
+try {
+    foreach ($name in @('initdb.exe', 'pg_ctl.exe', 'createdb.exe', 'psql.exe')) {
+        if (-not (Test-Path -LiteralPath (Join-Path $PostgresBin $name) -PathType Leaf)) { throw "Missing PostgreSQL tool: $name" }
+    }
+    & (Join-Path $PostgresBin 'initdb.exe') -D $data -U postgres -A trust --encoding=UTF8 --no-locale | Out-Null
+    if ($LASTEXITCODE -ne 0) { throw 'initdb failed' }
+    $arguments = "-D `"$data`" -l `"$log`" -o `"-p $pgPort -h 127.0.0.1`" start"
+    Start-Process -FilePath (Join-Path $PostgresBin 'pg_ctl.exe') -ArgumentList $arguments -RedirectStandardOutput $pgOut -RedirectStandardError $pgErr -WindowStyle Hidden | Out-Null
+    Wait-Port $pgPort
+    $pgStarted = $true
+    & (Join-Path $PostgresBin 'createdb.exe') -h 127.0.0.1 -p $pgPort -U postgres bell_183
+    if ($LASTEXITCODE -ne 0) { throw 'createdb failed' }
+
+    $env:GOTOOLCHAIN = 'go1.26.5'
+    $env:BELL_DATABASE_URL = "host=127.0.0.1 port=$pgPort user=postgres dbname=bell_183 sslmode=disable"
+    $env:BELL_CONTACT_SCHEDULE_TEST_DATABASE_URL = $env:BELL_DATABASE_URL
+    $env:BELL_JWT_SECRET = [guid]::NewGuid().ToString('N') + [guid]::NewGuid().ToString('N')
+    $env:BELL_BOOTSTRAP_USERNAME = 'bell_183_admin'
+    $env:BELL_BOOTSTRAP_PASSWORD = [guid]::NewGuid().ToString('N')
+    $env:BELL_RULE_ALERT_OPERATOR_PASSWORD = [guid]::NewGuid().ToString('N')
+    $env:BELL_CONTACT_CHANNEL_KEY = [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes('0123456789abcdef0123456789abcdef'))
+    $env:BELL_HOST = '127.0.0.1'
+    $env:BELL_PORT = $bellPort.ToString()
+
+    Push-Location $serverRoot
+    try {
+        go run . migrate -c config/settings.demo.yml *> (Join-Path $testRoot 'migrate.log')
+        if ($LASTEXITCODE -ne 0) { throw "migration failed: $(Join-Path $testRoot 'migrate.log')" }
+        go test ./tests/bell_contact_schedule -count=1 -v
+        if ($LASTEXITCODE -ne 0) { throw 'contact schedule tests failed' }
+        go build -o $serverExe .
+        if ($LASTEXITCODE -ne 0) { throw 'Bell build failed' }
+    } finally { Pop-Location }
+
+    $server = Start-Process -FilePath $serverExe -ArgumentList @('server', '-c', 'config/settings.demo.yml') -WorkingDirectory $serverRoot -RedirectStandardOutput $serverOut -RedirectStandardError $serverErr -WindowStyle Hidden -PassThru
+    Wait-Health $baseUrl
+    $adminBody = @{ username = $env:BELL_BOOTSTRAP_USERNAME; password = $env:BELL_BOOTSTRAP_PASSWORD; code = '0'; uuid = '0' } | ConvertTo-Json -Compress
+    $admin = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/login" -ContentType 'application/json' -Body $adminBody -NoProxy
+    $adminHeaders = @{ Authorization = "Bearer $($admin.token)" }
+    $contactBody = @{ name = 'HTTP联系人'; role = '测试值班' } | ConvertTo-Json -Compress
+    $created = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/contacts" -Headers $adminHeaders -ContentType 'application/json; charset=utf-8' -Body $contactBody -NoProxy
+    if ([int]$created.code -ne 200) { throw 'administrator contact create failed' }
+    $address = '+8613900000003'
+    $channelBody = @{ kind = 'sms'; address = $address } | ConvertTo-Json -Compress
+    $channel = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/contacts/$($created.data.id)/channels" -Headers $adminHeaders -ContentType 'application/json' -Body $channelBody -NoProxy
+    if ([int]$channel.code -ne 200 -or ($channel | ConvertTo-Json -Depth 10 -Compress).Contains($address)) { throw 'write-only channel HTTP boundary failed' }
+    $logRow = ''
+    for ($attempt = 0; $attempt -lt 40; $attempt++) {
+        $logRow = & (Join-Path $PostgresBin 'psql.exe') -h 127.0.0.1 -p $pgPort -U postgres -d bell_183 -Atc "SELECT id::text || '|' || coalesce(oper_param,'') FROM sys_opera_log WHERE oper_url LIKE '/api/v1/bell/contacts/%/channels' ORDER BY id DESC LIMIT 1"
+        if ($LASTEXITCODE -ne 0) { throw 'operation log query failed' }
+        if ($logRow) { break }
+        Start-Sleep -Milliseconds 100
+    }
+    if (-not $logRow -or $logRow.Contains($address)) { throw "operation log redaction failed: $logRow" }
+    $loggedBody = ($logRow -split '\|', 2)[1]
+    if ($loggedBody -and -not $loggedBody.Contains('"redacted":true')) { throw "unexpected operation log marker: $loggedBody" }
+
+    $operatorBody = @{ username = 'bell_132_operator'; password = $env:BELL_RULE_ALERT_OPERATOR_PASSWORD; code = '0'; uuid = '0' } | ConvertTo-Json -Compress
+    $operator = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/login" -ContentType 'application/json' -Body $operatorBody -NoProxy
+    $operatorHeaders = @{ Authorization = "Bearer $($operator.token)" }
+    foreach ($path in @('/api/v1/bell/contacts', '/api/v1/bell/duty-groups')) {
+        $read = Invoke-RestMethod -Uri "$baseUrl$path" -Headers $operatorHeaders -NoProxy
+        if ([int]$read.code -ne 200) { throw "operator read failed: $path" }
+    }
+    $denied = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/contacts" -Headers $operatorHeaders -ContentType 'application/json' -Body $contactBody -NoProxy
+    if ([int]$denied.code -ne 403) { throw "operator write returned $($denied.code)" }
+    $menu = Invoke-RestMethod -Uri "$baseUrl/api/v1/menurole" -Headers $operatorHeaders -NoProxy
+    $menuJson = $menu.data | ConvertTo-Json -Depth 20 -Compress
+    foreach ($title in @('联系人与通道', '值班排班')) { if (-not $menuJson.Contains($title)) { throw "operator menu missing $title" } }
+    Write-Output 'BELL_183_HTTP admin_contact=200 channel_write_only=true operator_reads=200 operator_write=403 menus=true'
+} finally {
+    if ($null -ne $server -and -not $server.HasExited) { Stop-Process -Id $server.Id -Force; $server.WaitForExit(5000) | Out-Null }
+    if ($pgStarted) { & (Join-Path $PostgresBin 'pg_ctl.exe') -D $data -m fast stop *> (Join-Path $testRoot 'stop.log') }
+    foreach ($name in @('BELL_DATABASE_URL', 'BELL_CONTACT_SCHEDULE_TEST_DATABASE_URL', 'BELL_JWT_SECRET', 'BELL_BOOTSTRAP_USERNAME', 'BELL_BOOTSTRAP_PASSWORD', 'BELL_RULE_ALERT_OPERATOR_PASSWORD', 'BELL_CONTACT_CHANNEL_KEY', 'BELL_HOST', 'BELL_PORT')) { Remove-Item "Env:$name" -ErrorAction SilentlyContinue }
+    Write-Verbose "Bell #183 artifacts: $testRoot"
+}

Bell/server/tests/bell_contact_schedule/validation_test.go

@@ -0,0 +1,22 @@
+package bell_contact_schedule_test
+
+import (
+	"encoding/base64"
+	"errors"
+	"testing"
+
+	"go-admin/app/bell/contact"
+)
+
+func TestChannelKeyAndWriteOnlyRoundTrip(t *testing.T) {
+	encoded := base64.StdEncoding.EncodeToString([]byte("0123456789abcdef0123456789abcdef"))
+	key, err := contact.ParseChannelKey(encoded)
+	if err != nil || len(key) != 32 {
+		t.Fatalf("key parse failed: len=%d err=%v", len(key), err)
+	}
+	for _, value := range []string{"", "short", base64.StdEncoding.EncodeToString([]byte("0123456789abcdef"))} {
+		if _, err = contact.ParseChannelKey(value); !errors.Is(err, contact.ErrChannelKeyUnavailable) {
+			t.Fatalf("invalid key accepted: %q err=%v", value, err)
+		}
+	}
+}

Bell/server/tests/integration/event_ingress/ingress_test.go

@@ -0,0 +1,404 @@
+package event_ingress_test
+
+import (
+	"bytes"
+	"context"
+	"crypto/ed25519"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-admin-team/go-admin-core/sdk"
+	"gorm.io/driver/postgres"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+
+	"go-admin/app/bell/event"
+	"go-admin/app/bell/integration/event_ingress"
+	"go-admin/app/bell/integration/machine_identity"
+	"go-admin/app/bell/receipt"
+)
+
+func TestPostgresConcurrentBusinessAndSecurityIdempotency(t *testing.T) {
+	dsn := os.Getenv("BELL_EVENT_INGRESS_TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("set BELL_EVENT_INGRESS_TEST_DATABASE_URL to run PostgreSQL concurrency verification")
+	}
+	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&event.Event{}, &receipt.Receipt{}, &receipt.IngestAudit{}, &event_ingress.ReplayToken{}, &event_ingress.EvidenceStatus{}); err != nil {
+		t.Fatal(err)
+	}
+	parsed, err := event_ingress.ParseEvent(fixture(t, "dangerous-area.json"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	const workers = 12
+	var created, duplicate, failures atomic.Int32
+	var wait sync.WaitGroup
+	for range workers {
+		wait.Add(1)
+		go func() {
+			defer wait.Done()
+			result, ingestErr := (event_ingress.Service{DB: db}).Ingest(context.Background(), parsed)
+			if ingestErr != nil {
+				failures.Add(1)
+				return
+			}
+			if result.Disposition == "created" {
+				created.Add(1)
+			} else if result.Disposition == "duplicate" {
+				duplicate.Add(1)
+			}
+		}()
+	}
+	wait.Wait()
+	if created.Load() != 1 || duplicate.Load() != workers-1 || failures.Load() != 0 {
+		t.Fatalf("concurrent ingest created=%d duplicate=%d failures=%d", created.Load(), duplicate.Load(), failures.Load())
+	}
+
+	now := time.Now().UTC()
+	var consumed atomic.Int32
+	for range workers {
+		wait.Add(1)
+		go func() {
+			defer wait.Done()
+			if (event_ingress.PersistentReplayStore{DB: db}).Consume("yv:sense:school-a", "concurrent-token-id-0001", now.Add(time.Minute), now) {
+				consumed.Add(1)
+			}
+		}()
+	}
+	wait.Wait()
+	if consumed.Load() != 1 {
+		t.Fatalf("concurrent replay consume accepted %d requests", consumed.Load())
+	}
+}
+
+func TestRuntimeRegistrationIsOptionalAndMigrationGated(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	t.Setenv("BELL_EVENT_INGRESS_ENABLED", "")
+	disabled := gin.New()
+	if err := event_ingress.RegisterRuntime(disabled); err != nil || len(disabled.Routes()) != 0 {
+		t.Fatalf("disabled runtime err=%v routes=%#v", err, disabled.Routes())
+	}
+
+	db, err := gorm.Open(sqlite.Open("file:bell-runtime?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	sdk.Runtime.SetDb("", db)
+	t.Cleanup(func() { sdk.Runtime.SetDb("", nil) })
+	t.Setenv("BELL_EVENT_INGRESS_ENABLED", "true")
+	if err = event_ingress.RegisterRuntime(gin.New()); err == nil {
+		t.Fatal("enabled runtime started without formal migration")
+	}
+	if err = db.AutoMigrate(&event_ingress.ReplayToken{}, &event_ingress.EvidenceStatus{}); err != nil {
+		t.Fatal(err)
+	}
+	registryPath := writeRegistry(t, "yovision-bell", "yv:sense:school-a", "sense-key-0001")
+	t.Setenv("BELL_MACHINE_PRINCIPAL_REGISTRY", registryPath)
+	registered := gin.New()
+	if err = event_ingress.RegisterRuntime(registered); err != nil {
+		t.Fatalf("enabled runtime did not register after migration: %v", err)
+	}
+	routes := registered.Routes()
+	if len(routes) != 1 || routes[0].Method != http.MethodPost || routes[0].Path != "/v1/events" {
+		t.Fatalf("unexpected ingress routes: %#v", routes)
+	}
+}
+
+func TestContractFixtureIdempotencyConflictAndReplayPersistence(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	databasePath := filepath.Join(t.TempDir(), "bell-ingress.sqlite")
+	db := openDatabasePath(t, databasePath)
+	body := fixture(t, "dangerous-area.json")
+	publicKey, privateKey, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	registry, err := machine_identity.NewRegistry(machine_identity.KeyRecord{Principal: "yv:sense:school-a", KeyID: "sense-key-0001", PublicKey: publicKey, Audience: "yovision-bell", Scopes: []string{"events:ingest"}, Enabled: true})
+	if err != nil {
+		t.Fatal(err)
+	}
+	now := time.Date(2026, 8, 31, 1, 0, 0, 0, time.UTC)
+	signer := machine_identity.Signer{Principal: "yv:sense:school-a", KeyID: "sense-key-0001", PrivateKey: privateKey, Now: func() time.Time { return now }}
+	newHandler := func() event_ingress.Handler {
+		return event_ingress.Handler{DB: db, Enabled: true, Verifier: machine_identity.Verifier{Registry: registry, Replay: event_ingress.PersistentReplayStore{DB: db}, Now: func() time.Time { return now }}}
+	}
+
+	firstToken := mint(t, signer, body)
+	first := request(t, newHandler(), body, firstToken)
+	if first.Code != http.StatusCreated {
+		t.Fatalf("first ingest status=%d body=%s", first.Code, first.Body.String())
+	}
+	var created event_ingress.IngestResult
+	decode(t, first, &created)
+	if created.Disposition != "created" || created.PayloadSHA256 != "4cc1e93820195caf713ea675ff33f178c9d4997dd8a81cb61287e9fea0e3d5e1" {
+		t.Fatalf("unexpected created result: %+v", created)
+	}
+	sqlDatabase, err := db.DB()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = sqlDatabase.Close(); err != nil {
+		t.Fatal(err)
+	}
+	db = openDatabasePath(t, databasePath)
+
+	// A new process-local Handler and replay store still reject the old token,
+	// proving that security replay state is durable rather than in-memory.
+	replayedToken := request(t, newHandler(), body, firstToken)
+	if replayedToken.Code != http.StatusUnauthorized || !strings.Contains(replayedToken.Body.String(), "machine_token_replayed") {
+		t.Fatalf("token replay status=%d body=%s", replayedToken.Code, replayedToken.Body.String())
+	}
+
+	duplicate := request(t, newHandler(), body, mint(t, signer, body))
+	if duplicate.Code != http.StatusOK {
+		t.Fatalf("business duplicate status=%d body=%s", duplicate.Code, duplicate.Body.String())
+	}
+	var duplicateResult event_ingress.IngestResult
+	decode(t, duplicate, &duplicateResult)
+	if duplicateResult.Disposition != "duplicate" || duplicateResult.EventID != created.EventID {
+		t.Fatalf("duplicate did not retain event identity: %+v", duplicateResult)
+	}
+	numericVariant := bytes.Replace(body, []byte(`0.93`), []byte(`0.930`), 1)
+	numericDuplicate := request(t, newHandler(), numericVariant, mint(t, signer, numericVariant))
+	if numericDuplicate.Code != http.StatusOK || !strings.Contains(numericDuplicate.Body.String(), created.PayloadSHA256) {
+		t.Fatalf("JCS-equivalent numeric payload was not a duplicate: %d %s", numericDuplicate.Code, numericDuplicate.Body.String())
+	}
+
+	var changed map[string]any
+	if err = json.Unmarshal(body, &changed); err != nil {
+		t.Fatal(err)
+	}
+	changed["severity"] = "critical"
+	conflicting, _ := json.Marshal(changed)
+	conflict := request(t, newHandler(), conflicting, mint(t, signer, conflicting))
+	if conflict.Code != http.StatusConflict || !strings.Contains(conflict.Body.String(), "idempotency_conflict") || !strings.Contains(conflict.Body.String(), created.EventID) {
+		t.Fatalf("conflict status=%d body=%s", conflict.Code, conflict.Body.String())
+	}
+	assertCount(t, db, &event.Event{}, 1)
+	assertCount(t, db, &receipt.Receipt{}, 1)
+	assertCount(t, db, &receipt.IngestAudit{}, 4)
+}
+
+func TestEvidenceDegradationIdentityErrorsAndDisabledConnector(t *testing.T) {
+	db := openDatabase(t)
+	publicKey, privateKey, _ := ed25519.GenerateKey(rand.Reader)
+	registry, _ := machine_identity.NewRegistry(machine_identity.KeyRecord{Principal: "yv:brain:school-a", KeyID: "brain-key-0001", PublicKey: publicKey, Audience: "yovision-bell", Scopes: []string{"events:ingest"}, Enabled: true})
+	now := time.Date(2026, 8, 31, 1, 0, 0, 0, time.UTC)
+	signer := machine_identity.Signer{Principal: "yv:brain:school-a", KeyID: "brain-key-0001", PrivateKey: privateKey, Now: func() time.Time { return now }}
+	handler := event_ingress.Handler{DB: db, Enabled: true, Verifier: machine_identity.Verifier{Registry: registry, Replay: event_ingress.PersistentReplayStore{DB: db}, Now: func() time.Time { return now }}}
+
+	pending := fixture(t, "dangerous-area.json")
+	if response := requestWithID(t, handler, pending, mint(t, signer, pending), "short"); response.Code != http.StatusBadRequest || !strings.Contains(response.Body.String(), "invalid_request_id") {
+		t.Fatalf("invalid request id status=%d body=%s", response.Code, response.Body.String())
+	}
+	missingRequestID := requestWithID(t, handler, pending, mint(t, signer, pending), "")
+	if missingRequestID.Code != http.StatusCreated || !requestIDPatternForTest(missingRequestID.Header().Get("X-Request-ID")) {
+		t.Fatalf("trusted hop did not create a request id: %d %s", missingRequestID.Code, missingRequestID.Body.String())
+	}
+	queryResponse := requestTarget(t, handler, pending, mint(t, signer, pending), "/v1/events?debug=true")
+	if queryResponse.Code != http.StatusBadRequest || !strings.Contains(queryResponse.Body.String(), "invalid_request_target") {
+		t.Fatalf("query target was accepted: %d %s", queryResponse.Code, queryResponse.Body.String())
+	}
+	if response := request(t, handler, pending, mint(t, signer, pending)); response.Code != http.StatusOK {
+		t.Fatalf("pending evidence rejected: %d %s", response.Code, response.Body.String())
+	}
+	failed := fixture(t, "directional-line-crossed.json")
+	if response := request(t, handler, failed, mint(t, signer, failed)); response.Code != http.StatusCreated {
+		t.Fatalf("failed evidence rejected: %d %s", response.Code, response.Body.String())
+	}
+	assertCount(t, db, &event.Event{}, 2)
+
+	wrongAudienceToken, err := signer.Mint("yovision-sense", []string{"events:ingest"}, http.MethodPost, "/v1/events", pending)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if response := request(t, handler, pending, wrongAudienceToken); response.Code != http.StatusForbidden {
+		t.Fatalf("wrong audience was not forbidden: %d %s", response.Code, response.Body.String())
+	}
+	if response := request(t, event_ingress.Handler{Enabled: false}, pending, "none"); response.Code != http.StatusServiceUnavailable {
+		t.Fatalf("disabled connector status=%d", response.Code)
+	}
+}
+
+func TestEvidenceResolverCurrentMissingExpiredAndTimeout(t *testing.T) {
+	db := openDatabase(t)
+	now := time.Date(2026, 8, 31, 1, 0, 0, 0, time.UTC)
+	status := event_ingress.EvidenceStatus{EventID: "event-1", EvidenceID: "ev-school-east-0001", OwnerID: "sense-school-a", Status: "pending", Resolution: "snapshot", CurrentPayload: json.RawMessage(`{"schema_version":"yovision.evidence-reference/v1","evidence_id":"ev-school-east-0001","owner_id":"sense-school-a","type":"snapshot","status":"pending","captured_at":"2026-08-31T00:00:01.125Z","status_updated_at":"2026-08-31T00:00:01.125Z"}`), CreatedAt: now, UpdatedAt: now}
+	if err := db.Create(&status).Error; err != nil {
+		t.Fatal(err)
+	}
+	_, privateKey, _ := ed25519.GenerateKey(rand.Reader)
+	signer := machine_identity.Signer{Principal: "yv:bell:school-a", KeyID: "bell-key-0001", PrivateKey: privateKey, Now: func() time.Time { return now }}
+	response := func(code int, body string) *http.Response {
+		return &http.Response{StatusCode: code, Body: io.NopCloser(strings.NewReader(body)), Header: make(http.Header)}
+	}
+	client := event_ingress.EvidenceClient{Endpoint: "https://sense.example", Signer: signer, HTTP: doFunc(func(*http.Request) (*http.Response, error) {
+		return response(http.StatusNotFound, `{}`), nil
+	})}
+	if err := client.Refresh(context.Background(), db, status); err != nil {
+		t.Fatal(err)
+	}
+	if err := db.First(&status, "event_id = ? AND evidence_id = ?", "event-1", "ev-school-east-0001").Error; err != nil || status.Resolution != "unavailable" || status.LastError != "evidence_not_found" {
+		t.Fatalf("missing resolution=%s error=%s db=%v", status.Resolution, status.LastError, err)
+	}
+	client.HTTP = doFunc(func(*http.Request) (*http.Response, error) { return response(http.StatusGone, `{}`), nil })
+	if err := client.Refresh(context.Background(), db, status); err != nil {
+		t.Fatal(err)
+	}
+	if err := db.First(&status, "event_id = ? AND evidence_id = ?", "event-1", "ev-school-east-0001").Error; err != nil || status.Resolution != "expired" {
+		t.Fatalf("expired resolution=%s db=%v", status.Resolution, err)
+	}
+	current := `{"schema_version":"yovision.evidence-reference/v1","evidence_id":"ev-school-east-0001","owner_id":"sense-school-a","type":"snapshot","status":"success","captured_at":"2026-08-31T00:00:01.125Z","status_updated_at":"2026-08-31T00:00:02.125Z","content_type":"image/jpeg","integrity":{"algorithm":"sha256","digest":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","size_bytes":1}}`
+	client.HTTP = doFunc(func(*http.Request) (*http.Response, error) { return response(http.StatusOK, current), nil })
+	if err := client.Refresh(context.Background(), db, status); err != nil {
+		t.Fatal(err)
+	}
+	if err := db.First(&status, "event_id = ? AND evidence_id = ?", "event-1", "ev-school-east-0001").Error; err != nil || status.Resolution != "current" || status.Status != "success" || status.LastError != "" {
+		t.Fatalf("current status=%s resolution=%s error=%s db=%v", status.Status, status.Resolution, status.LastError, err)
+	}
+	client.HTTP = doFunc(func(*http.Request) (*http.Response, error) { return nil, context.DeadlineExceeded })
+	if err := client.Refresh(context.Background(), db, status); err != nil {
+		t.Fatal(err)
+	}
+	if err := db.First(&status, "event_id = ? AND evidence_id = ?", "event-1", "ev-school-east-0001").Error; err != nil || status.Resolution != "unavailable" || status.LastError != "evidence_timeout" {
+		t.Fatalf("timeout resolution=%s error=%s db=%v", status.Resolution, status.LastError, err)
+	}
+}
+
+func openDatabase(t *testing.T) *gorm.DB {
+	return openDatabasePath(t, filepath.Join(t.TempDir(), "bell-ingress.sqlite"))
+}
+
+func openDatabasePath(t *testing.T, databasePath string) *gorm.DB {
+	t.Helper()
+	db, err := gorm.Open(sqlite.Open(databasePath), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&event.Event{}, &receipt.Receipt{}, &receipt.IngestAudit{}, &event_ingress.ReplayToken{}, &event_ingress.EvidenceStatus{}); err != nil {
+		t.Fatal(err)
+	}
+	sqlDatabase, err := db.DB()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = sqlDatabase.Close() })
+	return db
+}
+
+func fixture(t *testing.T, name string) []byte {
+	t.Helper()
+	path := filepath.Join("..", "..", "..", "..", "..", "contracts", "events", "v1", "examples", name)
+	body, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return body
+}
+
+func writeRegistry(t *testing.T, audience, principal, keyID string) string {
+	t.Helper()
+	publicKey, _, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	document := map[string]any{
+		"version": "yovision.machine-principal-registry/v1", "audience": audience,
+		"principals": []any{map[string]any{
+			"principal_id": principal, "enabled": true,
+			"keys": []any{map[string]any{
+				"kid": keyID, "public_key_base64url": base64.RawURLEncoding.EncodeToString(publicKey),
+				"status": "active", "scopes": []string{"events:ingest"},
+			}},
+		}},
+	}
+	encoded, err := json.Marshal(document)
+	if err != nil {
+		t.Fatal(err)
+	}
+	path := filepath.Join(t.TempDir(), "registry.json")
+	if err = os.WriteFile(path, encoded, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	return path
+}
+
+func mint(t *testing.T, signer machine_identity.Signer, body []byte) string {
+	t.Helper()
+	token, err := signer.Mint("yovision-bell", []string{"events:ingest"}, http.MethodPost, "/v1/events", body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return token
+}
+
+func request(t *testing.T, handler event_ingress.Handler, body []byte, token string) *httptest.ResponseRecorder {
+	return requestWithID(t, handler, body, token, "request-id-0000001")
+}
+
+func requestWithID(t *testing.T, handler event_ingress.Handler, body []byte, token, requestID string) *httptest.ResponseRecorder {
+	return requestTargetWithID(t, handler, body, token, "/v1/events", requestID)
+}
+
+func requestTarget(t *testing.T, handler event_ingress.Handler, body []byte, token, target string) *httptest.ResponseRecorder {
+	return requestTargetWithID(t, handler, body, token, target, "request-id-0000001")
+}
+
+func requestTargetWithID(t *testing.T, handler event_ingress.Handler, body []byte, token, target, requestID string) *httptest.ResponseRecorder {
+	t.Helper()
+	request := httptest.NewRequest(http.MethodPost, target, bytes.NewReader(body))
+	request.Header.Set("Authorization", "Bearer "+token)
+	request.Header.Set("X-Request-ID", requestID)
+	response := httptest.NewRecorder()
+	context, _ := gin.CreateTestContext(response)
+	context.Request = request
+	handler.Post(context)
+	return response
+}
+
+func requestIDPatternForTest(value string) bool {
+	if len(value) < 16 || len(value) > 128 {
+		return false
+	}
+	for index, r := range value {
+		if !(r >= 'A' && r <= 'Z' || r >= 'a' && r <= 'z' || r >= '0' && r <= '9' || index > 0 && strings.ContainsRune("._:-", r)) {
+			return false
+		}
+	}
+	return true
+}
+
+func decode(t *testing.T, response *httptest.ResponseRecorder, target any) {
+	t.Helper()
+	if err := json.Unmarshal(response.Body.Bytes(), target); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func assertCount(t *testing.T, db *gorm.DB, model any, expected int64) {
+	t.Helper()
+	var count int64
+	if err := db.Model(model).Count(&count).Error; err != nil || count != expected {
+		t.Fatalf("count %T=%d expected=%d err=%v", model, count, expected, err)
+	}
+}
+
+type doFunc func(*http.Request) (*http.Response, error)
+
+func (function doFunc) Do(request *http.Request) (*http.Response, error) { return function(request) }

Bell/ui/src/api/bell/contact.js

@@ -0,0 +1,7 @@
+import request from '@/utils/request'
+export function listContacts(query) { return request({ url: '/api/v1/bell/contacts', method: 'get', params: query }) }
+export function createContact(data) { return request({ url: '/api/v1/bell/contacts', method: 'post', data }) }
+export function updateContact(id, data) { return request({ url: `/api/v1/bell/contacts/${id}`, method: 'put', data }) }
+export function setContactEnabled(id, enabled, expectedVersion) { return request({ url: `/api/v1/bell/contacts/${id}/enabled`, method: 'put', data: { enabled, expectedVersion }}) }
+export function addContactChannel(id, data) { return request({ url: `/api/v1/bell/contacts/${id}/channels`, method: 'post', data }) }
+export function validateContactChannel(id, data) { return request({ url: `/api/v1/bell/contact-channels/${id}/validations`, method: 'post', data }) }

Bell/ui/src/api/bell/duty-schedule.js

@@ -0,0 +1,8 @@
+import request from '@/utils/request'
+export function listDutyGroups(query) { return request({ url: '/api/v1/bell/duty-groups', method: 'get', params: query }) }
+export function createDutyGroup(data) { return request({ url: '/api/v1/bell/duty-groups', method: 'post', data }) }
+export function updateDutyGroup(id, data) { return request({ url: `/api/v1/bell/duty-groups/${id}`, method: 'put', data }) }
+export function saveDutyMember(id, data) { return request({ url: `/api/v1/bell/duty-groups/${id}/members`, method: 'post', data }) }
+export function createDutySchedule(id, data) { return request({ url: `/api/v1/bell/duty-groups/${id}/schedules`, method: 'post', data }) }
+export function publishDutySchedule(id) { return request({ url: `/api/v1/bell/duty-schedules/${id}/publish`, method: 'post' }) }
+export function createDutyOverride(id, data) { return request({ url: `/api/v1/bell/duty-groups/${id}/overrides`, method: 'post', data }) }

Bell/ui/src/views/bell/contacts/index.vue

@@ -0,0 +1,21 @@
+<template>
+  <BasicLayout><template #wrapper><el-card>
+    <template #header><div class="heading"><div><h2>联系人与通道</h2><p>通道地址保存后只显示脱敏值，验证状态与联系人启用状态相互独立。</p></div><el-button v-permisaction="['bell:contact:write']" type="primary" @click="openCreate">新增联系人</el-button></div></template>
+    <el-form ref="queryForm" :model="query" :inline="true"><el-form-item label="联系人" prop="name"><el-input v-model="query.name" clearable placeholder="姓名或岗位" @keyup.enter="search" /></el-form-item><el-form-item label="状态" prop="enabled"><el-select v-model="query.enabled" clearable placeholder="全部" style="width:120px"><el-option label="启用" :value="true" /><el-option label="停用" :value="false" /></el-select></el-form-item><el-form-item><el-button type="primary" @click="search">搜索</el-button><el-button @click="reset">重置</el-button></el-form-item></el-form>
+    <el-alert v-if="error" :title="error" type="error" show-icon :closable="false" class="state" />
+    <el-table v-loading="loading" :data="items" border row-key="id">
+      <el-table-column prop="name" label="联系人" min-width="130" /><el-table-column prop="role" label="岗位" min-width="130" />
+      <el-table-column label="通道" min-width="260"><template #default="scope"><div v-if="scope.row.channels.length"><el-tag v-for="ch in scope.row.channels" :key="ch.id" :type="statusType(ch.status)" class="channel">{{ kindName(ch.kind) }} {{ ch.addressMasked }} · {{ statusName(ch.status) }}</el-tag></div><span v-else class="muted">未配置</span></template></el-table-column>
+      <el-table-column label="状态" width="100"><template #default="scope"><el-switch v-model="scope.row.enabled" :disabled="!canWrite" inline-prompt active-text="启" inactive-text="停" @change="toggle(scope.row)" /></template></el-table-column><el-table-column prop="version" label="版本" width="70" />
+      <el-table-column label="操作" width="210" fixed="right"><template #default="scope"><el-button v-permisaction="['bell:contact:write']" link type="primary" @click="openEdit(scope.row)">编辑</el-button><el-button v-permisaction="['bell:contact:write']" link type="primary" @click="openChannel(scope.row)">新增通道</el-button><el-dropdown v-if="scope.row.channels.length && canWrite" @command="command => validate(scope.row, command)"><el-button link type="primary">验证通道</el-button><template #dropdown><el-dropdown-menu><el-dropdown-item v-for="ch in scope.row.channels" :key="ch.id" :command="ch">{{ kindName(ch.kind) }} {{ ch.addressMasked }}</el-dropdown-item></el-dropdown-menu></template></el-dropdown></template></el-table-column>
+      <template #empty><el-empty description="暂无联系人" /></template>
+    </el-table><pagination v-show="total>0" v-model:current-page="query.pageIndex" v-model:page-size="query.pageSize" :total="total" @pagination="load" />
+    <el-dialog v-model="contactDialog" :title="editing?'编辑联系人':'新增联系人'" width="min(520px, calc(100vw - 32px))" :close-on-click-modal="false"><el-form ref="contactForm" :model="form" :rules="rules" label-position="top"><el-form-item label="称呼" prop="name"><el-input v-model.trim="form.name" maxlength="128" /></el-form-item><el-form-item label="岗位" prop="role"><el-input v-model.trim="form.role" maxlength="128" /></el-form-item></el-form><template #footer><el-button @click="contactDialog=false">取消</el-button><el-button type="primary" :loading="saving" @click="saveContact">保存</el-button></template></el-dialog>
+    <el-dialog v-model="channelDialog" title="新增联系通道" width="min(520px, calc(100vw - 32px))" :close-on-click-modal="false"><el-alert title="号码仅在本次填写时可见，保存后只返回脱敏值。" type="info" :closable="false" class="state" /><el-form ref="channelForm" :model="channel" :rules="channelRules" label-position="top"><el-form-item label="通道" prop="kind"><el-select v-model="channel.kind" style="width:100%"><el-option label="短信" value="sms" /><el-option label="语音" value="voice" /></el-select></el-form-item><el-form-item label="号码" prop="address"><el-input v-model.trim="channel.address" autocomplete="off" placeholder="请输入合法测试号码" /></el-form-item></el-form><template #footer><el-button @click="channelDialog=false">取消</el-button><el-button type="primary" :loading="saving" @click="saveChannel">保存</el-button></template></el-dialog>
+  </el-card></template></BasicLayout>
+</template>
+<script>
+import { addContactChannel, createContact, listContacts, setContactEnabled, updateContact, validateContactChannel } from '@/api/bell/contact'
+export default { name: 'BellContacts', data() { return { loading: false, saving: false, error: '', items: [], total: 0, contactDialog: false, channelDialog: false, editing: false, editingId: '', channelContactId: '', query: { pageIndex: 1, pageSize: 10, name: '', enabled: null }, form: { name: '', role: '', expectedVersion: 0 }, channel: { kind: 'sms', address: '' }, rules: { name: [{ required: true, message: '请输入称呼', trigger: 'blur' }], role: [{ required: true, message: '请输入岗位', trigger: 'blur' }] }, channelRules: { kind: [{ required: true, message: '请选择通道', trigger: 'change' }], address: [{ required: true, pattern: /^\+?[0-9 -]{6,24}$/, message: '请输入有效号码', trigger: 'blur' }] }} }, computed: { canWrite() { const p = this.$store.getters.permisaction || []; return p.includes('*:*:*') || p.includes('bell:contact:write') } }, created() { this.load() }, methods: { async load() { this.loading = true; this.error = ''; try { const r = await listContacts(this.query); this.items = r.data.list || []; this.total = r.data.count || 0 } catch (e) { this.error = e.message || '联系人加载失败' } finally { this.loading = false } }, search() { this.query.pageIndex = 1; this.load() }, reset() { this.$refs.queryForm.resetFields(); this.query.enabled = null; this.search() }, openCreate() { this.editing = false; this.editingId = ''; this.form = { name: '', role: '', expectedVersion: 0 }; this.contactDialog = true }, openEdit(row) { this.editing = true; this.editingId = row.id; this.form = { name: row.name, role: row.role, expectedVersion: row.version }; this.contactDialog = true }, openChannel(row) { this.channelContactId = row.id; this.channel = { kind: 'sms', address: '' }; this.channelDialog = true }, async saveContact() { try { await this.$refs.contactForm.validate(); this.saving = true; if (this.editing) await updateContact(this.editingId, this.form); else await createContact(this.form); this.msgSuccess('联系人已保存'); this.contactDialog = false; await this.load() } catch (e) { if (e && e.message) this.error = e.message } finally { this.saving = false } }, async saveChannel() { try { await this.$refs.channelForm.validate(); this.saving = true; await addContactChannel(this.channelContactId, this.channel); this.msgSuccess('通道已加密保存，等待验证'); this.channelDialog = false; await this.load() } catch (e) { if (e && e.message) this.error = e.message } finally { this.saving = false } }, async toggle(row) { try { await setContactEnabled(row.id, row.enabled, row.version); this.msgSuccess(row.enabled ? '联系人已启用' : '联系人已停用'); await this.load() } catch (e) { row.enabled = !row.enabled; this.error = e.message || '状态更新失败' } }, async validate(row, ch) { try { await this.$confirm(`确认合成验证 ${ch.addressMasked} 成功？本操作不会发送外部消息。`, '记录验证结果', { type: 'warning' }); await validateContactChannel(ch.id, { status: 'verified', detail: '人工合成验证' }); this.msgSuccess('验证事实已记录'); await this.load() } catch (e) { if (e !== 'cancel' && e !== 'close' && e && e.message) this.error = e.message } }, kindName(v) { return { sms: '短信', voice: '语音' }[v] || v }, statusName(v) { return { pending: '待验证', verified: '已验证', failed: '验证失败' }[v] || v }, statusType(v) { return { pending: 'warning', verified: 'success', failed: 'danger' }[v] || 'info' } }}
+</script>
+<style scoped>.heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.heading h2{margin:0}.heading p{margin:6px 0 0;color:var(--el-text-color-secondary)}.state{margin-bottom:16px}.channel{margin:2px 6px 2px 0}.muted{color:var(--el-text-color-secondary)}</style>

Brain/pyproject.toml

@@ -8,7 +8,7 @@ version = "0.1.0"
 description = "Headless inference delivery unit for YoVision"
 readme = "README.md"
 requires-python = "==3.11.*"
-dependencies = []
+dependencies = ["cryptography==50.0.1"]
 
 [project.optional-dependencies]
 # The wheel backend is selected by the official PyTorch index documented in

Brain/src/yovision_brain/app/__main__.py

@@ -11,6 +11,7 @@ from yovision_brain.config import ConfigError
 from yovision_brain.decode import DecoderError
 from yovision_brain.events import JsonLinesSink
 from yovision_brain.input import InputError
+from yovision_brain.integration.event_export import build_event_export_sink
 from yovision_brain.rules import RuleConfigError
 
 from .runner import run_pipeline
@@ -38,14 +39,16 @@ def main(argv: list[str] | None = None) -> int:
     stream = sys.stdout
     owned_stream = None
     try:
-        if args.output != "-":
+        export_sink = build_event_export_sink(raw.get("event_export"), base_dir=config_path.parent)
+        if export_sink is None and args.output != "-":
             try:
                 owned_stream = Path(args.output).open("w", encoding="utf-8", newline="\n")
             except OSError:
                 print(json.dumps({"status": "error", "message": "event output cannot be opened"}), file=sys.stderr)
                 return 2
             stream = owned_stream
-        summary = run_pipeline(raw, JsonLinesSink(stream), base_dir=config_path.parent)
+        sink = export_sink if export_sink is not None else JsonLinesSink(stream)
+        summary = run_pipeline(raw, sink, base_dir=config_path.parent)
     except (ConfigError, DecoderError, InputError, RuleConfigError, RuntimeError, ValueError) as exc:
         print(json.dumps({"status": "error", "message": str(exc)}, ensure_ascii=False), file=sys.stderr)
         return 3

Brain/src/yovision_brain/integration/event_export/__init__.py

@@ -0,0 +1,30 @@
+"""Map Brain-internal candidates to the frozen anonymous event contract."""
+
+from .mapper import (
+    EVENT_SCHEMA_VERSION,
+    EVIDENCE_SCHEMA_VERSION,
+    EventExportError,
+    canonical_json,
+    canonical_json_bytes,
+    export_event,
+    payload_sha256,
+)
+from .replay import SQLiteReplayCache
+from .client import DeliveryResult, EventDeliveryError, HTTPSMachineIdentitySender
+from .runtime import EventExportSink, build_event_export_sink
+
+__all__ = [
+    "EVENT_SCHEMA_VERSION",
+    "EVIDENCE_SCHEMA_VERSION",
+    "EventExportError",
+    "EventDeliveryError",
+    "DeliveryResult",
+    "EventExportSink",
+    "HTTPSMachineIdentitySender",
+    "SQLiteReplayCache",
+    "canonical_json",
+    "canonical_json_bytes",
+    "export_event",
+    "payload_sha256",
+    "build_event_export_sink",
+]

Brain/src/yovision_brain/integration/event_export/client.py

@@ -0,0 +1,167 @@
+"""Synchronous, request-bound HTTPS delivery for Brain event exports."""
+
+from __future__ import annotations
+
+import hashlib
+import json
+import re
+import secrets
+import urllib.error
+import urllib.request
+from dataclasses import dataclass
+from typing import Protocol
+from urllib.parse import urlsplit
+
+from yovision_brain.integration.machine_identity import Signer, TransportPolicy
+
+EVENT_PATH = "/v1/events"
+_REQUEST_ID = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:-]{15,127}$")
+
+
+class EventDeliveryError(RuntimeError):
+    """An event was not accepted; callers must retain or reproduce the fact."""
+
+    def __init__(self, code: str, *, terminal: bool) -> None:
+        super().__init__(code)
+        self.code = code
+        self.terminal = terminal
+
+
+@dataclass(frozen=True, slots=True)
+class DeliveryResult:
+    disposition: str
+    request_id: str
+
+
+class _Headers(Protocol):
+    def get(self, name: str, default: str | None = None) -> str | None: ...
+
+
+class _Response(Protocol):
+    status: int
+    headers: _Headers
+
+    def read(self, amount: int = -1) -> bytes: ...
+    def close(self) -> None: ...
+
+
+class _Opener(Protocol):
+    def open(self, request: urllib.request.Request, timeout: float) -> _Response: ...
+
+
+class HTTPSMachineIdentitySender:
+    def __init__(
+        self,
+        endpoint: str,
+        signer: Signer,
+        policy: TransportPolicy,
+        *,
+        opener: _Opener | None = None,
+    ) -> None:
+        parsed = urlsplit(endpoint)
+        if (
+            parsed.scheme != "https"
+            or not parsed.hostname
+            or parsed.username is not None
+            or parsed.password is not None
+            or parsed.path not in {"", "/"}
+            or parsed.query
+            or parsed.fragment
+        ):
+            raise ValueError("event export endpoint must be an HTTPS origin")
+        policy.validate()
+        self._endpoint = endpoint.rstrip("/")
+        self._signer = signer
+        self._policy = policy
+        self._opener = opener or urllib.request.build_opener(
+            urllib.request.HTTPSHandler(context=policy.ssl_context())
+        )
+
+    def send(self, body: bytes) -> DeliveryResult:
+        if len(body) > self._policy.max_request_bytes:
+            raise EventDeliveryError("event_request_too_large", terminal=True)
+        request_id = "req-" + secrets.token_urlsafe(16)
+        if not _REQUEST_ID.fullmatch(request_id):  # pragma: no cover - defensive invariant
+            raise RuntimeError("generated request id is invalid")
+        token = self._signer.mint(
+            "yovision-sense", ("events:ingest",), "POST", EVENT_PATH, body
+        )
+        request = urllib.request.Request(
+            self._endpoint + EVENT_PATH,
+            data=body,
+            method="POST",
+            headers={
+                "Authorization": "Bearer " + token,
+                "Content-Type": "application/json",
+                "X-Request-ID": request_id,
+            },
+        )
+        try:
+            response = self._opener.open(
+                request, timeout=self._policy.request_timeout_ms / 1000
+            )
+        except urllib.error.HTTPError as exc:
+            response_body = exc.read(64 * 1024 + 1)
+            code = _problem_code(response_body) or "event_delivery_rejected"
+            raise EventDeliveryError(
+                code,
+                terminal=400 <= exc.code < 500 and exc.code != 429,
+            ) from None
+        except (OSError, TimeoutError, urllib.error.URLError):
+            raise EventDeliveryError("event_delivery_unavailable", terminal=False) from None
+
+        try:
+            response_body = response.read(64 * 1024 + 1)
+            if len(response_body) > 64 * 1024:
+                raise EventDeliveryError("event_response_invalid", terminal=False)
+            if response.status not in {200, 201, 202}:
+                raise EventDeliveryError(
+                    "event_delivery_rejected",
+                    terminal=400 <= response.status < 500 and response.status != 429,
+                )
+            response_request_id = response.headers.get("X-Request-ID")
+            if response_request_id != request_id:
+                raise EventDeliveryError("event_response_invalid", terminal=False)
+            disposition = _disposition(response_body, response.status, body)
+            return DeliveryResult(disposition=disposition, request_id=request_id)
+        finally:
+            response.close()
+
+
+def _problem_code(body: bytes) -> str | None:
+    try:
+        value = json.loads(body)
+    except (UnicodeDecodeError, json.JSONDecodeError):
+        return None
+    code = value.get("code") if isinstance(value, dict) else None
+    return code if isinstance(code, str) and re.fullmatch(r"[a-z][a-z0-9_]{0,63}", code) else None
+
+
+def _disposition(body: bytes, status: int, request_body: bytes) -> str:
+    try:
+        value = json.loads(body)
+    except (UnicodeDecodeError, json.JSONDecodeError):
+        raise EventDeliveryError("event_response_invalid", terminal=False) from None
+    disposition = value.get("disposition") if isinstance(value, dict) else None
+    allowed = {"accepted", "created", "duplicate"}
+    if disposition not in allowed:
+        raise EventDeliveryError("event_response_invalid", terminal=False)
+    if status == 202 and disposition != "accepted":
+        raise EventDeliveryError("event_response_invalid", terminal=False)
+    try:
+        sent = json.loads(request_body)
+        response_identity = (
+            value["producer_id"],
+            value["source_event_id"],
+            value["payload_sha256"],
+        )
+        expected_identity = (
+            sent["producer_id"],
+            sent["source_event_id"],
+            hashlib.sha256(request_body).hexdigest(),
+        )
+    except (KeyError, TypeError, UnicodeDecodeError, json.JSONDecodeError):
+        raise EventDeliveryError("event_response_invalid", terminal=False) from None
+    if response_identity != expected_identity:
+        raise EventDeliveryError("event_response_invalid", terminal=False)
+    return disposition

Brain/src/yovision_brain/integration/event_export/mapper.py

@@ -0,0 +1,378 @@
+"""Safe, deterministic Brain producer mapping for ``yovision.event/v1``."""
+
+from __future__ import annotations
+
+import hashlib
+import json
+import math
+import re
+from datetime import datetime, timedelta, timezone
+from decimal import Decimal
+from typing import Mapping, Sequence
+
+from yovision_brain.events import INTERNAL_EVENT_SCHEMA, InternalEventCandidate
+
+EVENT_SCHEMA_VERSION = "yovision.event/v1"
+EVIDENCE_SCHEMA_VERSION = "yovision.evidence-reference/v1"
+
+_REFERENCE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$")
+_SHA256 = re.compile(r"^[a-f0-9]{64}$")
+_URL = re.compile(r"^[A-Za-z][A-Za-z0-9+.-]*://")
+_WINDOWS_PATH = re.compile(r"^[A-Za-z]:[\\/]")
+_SENSITIVE_NAMES = frozenset(
+    {
+        "path",
+        "url",
+        "uri",
+        "password",
+        "secret",
+        "token",
+        "credential",
+        "signed_url",
+        "camera_url",
+        "face",
+        "face_id",
+        "face_template",
+        "alert",
+        "ack",
+        "close",
+        "notification",
+    }
+)
+_EVIDENCE_FIELDS = frozenset(
+    {
+        "schema_version",
+        "evidence_id",
+        "owner_id",
+        "type",
+        "status",
+        "captured_at",
+        "status_updated_at",
+        "expires_at",
+        "content_type",
+        "integrity",
+        "failure",
+    }
+)
+
+
+class EventExportError(ValueError):
+    """The internal candidate cannot safely satisfy the frozen contract."""
+
+
+def export_event(
+    candidate: InternalEventCandidate,
+    *,
+    producer_id: str,
+    site_ref: str,
+    device_ref: str | None = None,
+    severity: str,
+    evidence: Sequence[Mapping[str, object]] = (),
+    region_ref: str | None = None,
+    crossing_direction: str | None = None,
+    category: str | None = None,
+) -> dict[str, object]:
+    """Return a new closed v1 payload without mutating the internal candidate.
+
+    The candidate's already stable ``event_id`` is the source identity. Callers
+    must persist and retry the returned payload unchanged; transport attempts do
+    not participate in either identity field.
+    """
+
+    if candidate.schema != INTERNAL_EVENT_SCHEMA:
+        raise EventExportError("unsupported internal event candidate schema")
+    producer_id = _reference("producer_id", producer_id)
+    source_event_id = _reference("source_event_id", candidate.event_id)
+    site_ref = _reference("site_ref", site_ref)
+    device_ref = _reference("device_ref", device_ref or candidate.logical_input_id)
+    profile_ref = _reference("profile_ref", candidate.profile_id)
+    rule_id = _reference("rule.rule_id", candidate.rule_id)
+    region_id = _reference("region.region_id", region_ref or candidate.rule_id)
+    track_id = _reference("observation.track_id", candidate.track_id)
+
+    event_type = {
+        "danger_area_entered": "dangerous_area_entered",
+        "dangerous_area_entered": "dangerous_area_entered",
+        "directional_line_crossed": "directional_line_crossed",
+    }.get(candidate.event_type)
+    if event_type is None:
+        raise EventExportError("unsupported event type")
+    if severity not in {"low", "medium", "high", "critical"}:
+        raise EventExportError("unsupported severity")
+
+    observation = _observation(candidate, track_id=track_id, category=category)
+    region: dict[str, object] = {
+        "region_id": region_id,
+        "kind": "area" if event_type == "dangerous_area_entered" else "line",
+    }
+    if event_type == "directional_line_crossed":
+        if crossing_direction not in {"a_to_b", "b_to_a"}:
+            raise EventExportError("line events require a contract crossing_direction")
+        region["crossing_direction"] = crossing_direction
+    elif crossing_direction is not None:
+        raise EventExportError("area events cannot carry crossing_direction")
+
+    if len(evidence) > 8:
+        raise EventExportError("at most eight evidence references are allowed")
+    mapped_evidence = [_evidence_reference(item) for item in evidence]
+    if len({canonical_json_bytes(item) for item in mapped_evidence}) != len(mapped_evidence):
+        raise EventExportError("duplicate evidence references are not allowed")
+
+    payload: dict[str, object] = {
+        "schema_version": EVENT_SCHEMA_VERSION,
+        "producer_id": producer_id,
+        "source_event_id": source_event_id,
+        "site_ref": site_ref,
+        "device_ref": device_ref,
+        "profile_ref": profile_ref,
+        "event_type": event_type,
+        "occurred_at": _event_timestamp(candidate.occurred_at_ns),
+        "severity": severity,
+        "rule": {"rule_id": rule_id, "version": _bounded_text("rule.version", candidate.rule_version, 64)},
+        "model": {
+            "name": _bounded_text("model.name", candidate.model_name, 128),
+            "version": _bounded_text("model.version", candidate.model_version, 64),
+        },
+        "observation": observation,
+        "region": region,
+        "evidence": mapped_evidence,
+    }
+    _reject_unsafe(payload)
+    canonical_json_bytes(payload)  # Reject non-finite or unsupported values now.
+    return payload
+
+
+def canonical_json(value: object) -> str:
+    """Serialize the closed event-domain JCS subset used by frozen fixtures.
+
+    Contract values use JSON strings, containers, booleans, integers and finite
+    ordinary decimals. Integer-valued floats are normalized to their JSON number
+    form; the checked-in RFC 8785 vector fixes cross-language digest behavior.
+    """
+
+    return _encode_jcs(_normalize_numbers(value))
+
+
+def canonical_json_bytes(value: object) -> bytes:
+    return canonical_json(value).encode("utf-8")
+
+
+def payload_sha256(event: Mapping[str, object]) -> str:
+    return hashlib.sha256(canonical_json_bytes(event)).hexdigest()
+
+
+def _observation(
+    candidate: InternalEventCandidate, *, track_id: str, category: str | None
+) -> dict[str, object]:
+    internal = candidate.observation
+    confidence = internal.get("confidence")
+    if isinstance(confidence, bool) or not isinstance(confidence, (int, float)):
+        raise EventExportError("observation confidence must be numeric")
+    confidence = float(confidence)
+    if not math.isfinite(confidence) or not 0 <= confidence <= 1:
+        raise EventExportError("observation confidence must be finite and between zero and one")
+
+    internal_category = internal.get("category")
+    exported_category = category or {
+        "anonymous_target": "person",
+        "person": "person",
+        "vehicle": "vehicle",
+        "other": "other",
+    }.get(internal_category)
+    if exported_category not in {"person", "vehicle", "other"}:
+        raise EventExportError("observation category requires an explicit anonymous contract mapping")
+
+    result: dict[str, object] = {
+        "track_id": track_id,
+        "category": exported_category,
+        "confidence": confidence,
+    }
+    box = internal.get("box")
+    if box is not None:
+        if not isinstance(box, Mapping) or set(box) != {"left", "top", "right", "bottom"}:
+            raise EventExportError("internal observation box is malformed")
+        if candidate.frame_width <= 0 or candidate.frame_height <= 0:
+            raise EventExportError("frame dimensions must be positive")
+        coordinates = (box["left"], box["top"], box["right"], box["bottom"])
+        if any(isinstance(value, bool) or not isinstance(value, (int, float)) for value in coordinates):
+            raise EventExportError("box coordinates must be numeric")
+        normalized = [
+            float(coordinates[0]) / candidate.frame_width,
+            float(coordinates[1]) / candidate.frame_height,
+            float(coordinates[2]) / candidate.frame_width,
+            float(coordinates[3]) / candidate.frame_height,
+        ]
+        if any(not math.isfinite(value) or not 0 <= value <= 1 for value in normalized):
+            raise EventExportError("normalized box coordinates must be finite and between zero and one")
+        result["bbox_normalized"] = normalized
+    return result
+
+
+def _evidence_reference(source: Mapping[str, object]) -> dict[str, object]:
+    if not isinstance(source, Mapping):
+        raise EventExportError("evidence reference must be an object")
+    unknown = set(source) - _EVIDENCE_FIELDS
+    if unknown:
+        raise EventExportError(f"evidence reference contains forbidden fields: {sorted(unknown)!r}")
+    required = {
+        "schema_version",
+        "evidence_id",
+        "owner_id",
+        "type",
+        "status",
+        "captured_at",
+        "status_updated_at",
+    }
+    missing = required - set(source)
+    if missing:
+        raise EventExportError(f"evidence reference is missing fields: {sorted(missing)!r}")
+    result = dict(source)
+    if result["schema_version"] != EVIDENCE_SCHEMA_VERSION:
+        raise EventExportError("unsupported evidence schema version")
+    _reference("evidence.evidence_id", result["evidence_id"])
+    _reference("evidence.owner_id", result["owner_id"])
+    if result["type"] not in {"snapshot", "clip"}:
+        raise EventExportError("unsupported evidence type")
+    status = result["status"]
+    if status not in {"pending", "processing", "success", "failed"}:
+        raise EventExportError("unsupported evidence status")
+    for field in ("captured_at", "status_updated_at", "expires_at"):
+        if field in result:
+            _date_time(field, result[field])
+
+    if status in {"pending", "processing"}:
+        if any(field in result for field in ("content_type", "integrity", "failure")):
+            raise EventExportError(f"{status} evidence cannot claim content or failure")
+    elif status == "success":
+        if "failure" in result or "content_type" not in result or "integrity" not in result:
+            raise EventExportError("successful evidence requires content metadata and no failure")
+        if result["content_type"] not in {"image/jpeg", "image/png", "video/mp4"}:
+            raise EventExportError("unsupported evidence content type")
+        integrity = result["integrity"]
+        if not isinstance(integrity, Mapping) or set(integrity) != {"algorithm", "digest", "size_bytes"}:
+            raise EventExportError("evidence integrity is malformed")
+        if integrity["algorithm"] != "sha256" or not isinstance(integrity["digest"], str) or not _SHA256.fullmatch(integrity["digest"]):
+            raise EventExportError("evidence integrity must contain a SHA-256 digest")
+        if isinstance(integrity["size_bytes"], bool) or not isinstance(integrity["size_bytes"], int) or integrity["size_bytes"] < 0:
+            raise EventExportError("evidence size must be a non-negative integer")
+    else:
+        if "content_type" in result or "integrity" in result or "failure" not in result:
+            raise EventExportError("failed evidence requires only failure metadata")
+        failure = result["failure"]
+        if not isinstance(failure, Mapping) or set(failure) != {"code", "retryable"}:
+            raise EventExportError("evidence failure is malformed")
+        if failure["code"] not in {"capture_failed", "processing_failed", "expired", "unavailable"}:
+            raise EventExportError("unsupported evidence failure code")
+        if not isinstance(failure["retryable"], bool):
+            raise EventExportError("evidence retryable must be boolean")
+    _reject_unsafe(result)
+    return result
+
+
+def _reference(name: str, value: object) -> str:
+    if not isinstance(value, str) or not _REFERENCE.fullmatch(value):
+        raise EventExportError(f"{name} is not a valid logical reference")
+    return value
+
+
+def _bounded_text(name: str, value: object, maximum: int) -> str:
+    if not isinstance(value, str) or not 1 <= len(value) <= maximum:
+        raise EventExportError(f"{name} must be 1..{maximum} characters")
+    return value
+
+
+def _event_timestamp(nanoseconds: int) -> str:
+    if isinstance(nanoseconds, bool) or not isinstance(nanoseconds, int) or nanoseconds < 0:
+        raise EventExportError("occurred_at_ns must be a non-negative integer")
+    seconds, remainder = divmod(nanoseconds, 1_000_000_000)
+    value = datetime(1970, 1, 1, tzinfo=timezone.utc) + timedelta(
+        seconds=seconds, milliseconds=remainder // 1_000_000
+    )
+    return value.strftime("%Y-%m-%dT%H:%M:%S.") + f"{value.microsecond // 1000:03d}Z"
+
+
+def _date_time(name: str, value: object) -> None:
+    if not isinstance(value, str):
+        raise EventExportError(f"evidence {name} must be a date-time string")
+    try:
+        parsed = datetime.fromisoformat(value.replace("Z", "+00:00"))
+    except ValueError as exc:
+        raise EventExportError(f"evidence {name} must be a valid date-time") from exc
+    if parsed.tzinfo is None:
+        raise EventExportError(f"evidence {name} must include a timezone")
+
+
+def _reject_unsafe(value: object, *, key: str = "") -> None:
+    if isinstance(value, Mapping):
+        for child_key, child in value.items():
+            lowered = str(child_key).lower()
+            if lowered in _SENSITIVE_NAMES or lowered.endswith("_path") or lowered.endswith("_url"):
+                raise EventExportError(f"sensitive field {child_key!r} is forbidden")
+            _reject_unsafe(child, key=lowered)
+    elif isinstance(value, (list, tuple)):
+        for child in value:
+            _reject_unsafe(child, key=key)
+    elif isinstance(value, str):
+        if _URL.match(value) or _WINDOWS_PATH.match(value) or value.startswith(("/", "\\\\")):
+            raise EventExportError(f"path or URL value in {key or 'payload'} is forbidden")
+
+
+def _normalize_numbers(value: object) -> object:
+    if value is None or isinstance(value, (str, bool, int)):
+        return value
+    if isinstance(value, float):
+        if not math.isfinite(value):
+            raise EventExportError("canonical JSON rejects non-finite numbers")
+        if value == 0:
+            return 0
+        return value
+    if isinstance(value, Mapping):
+        if any(not isinstance(key, str) for key in value):
+            raise EventExportError("canonical JSON object keys must be strings")
+        return {key: _normalize_numbers(child) for key, child in value.items()}
+    if isinstance(value, (list, tuple)):
+        return [_normalize_numbers(child) for child in value]
+    raise EventExportError(f"canonical JSON does not support {type(value).__name__}")
+
+
+def _encode_jcs(value: object) -> str:
+    if value is None:
+        return "null"
+    if value is True:
+        return "true"
+    if value is False:
+        return "false"
+    if isinstance(value, str):
+        return json.dumps(value, ensure_ascii=False, separators=(",", ":"))
+    if isinstance(value, int):
+        return str(value)
+    if isinstance(value, float):
+        return _jcs_float(value)
+    if isinstance(value, list):
+        return "[" + ",".join(_encode_jcs(item) for item in value) + "]"
+    if isinstance(value, Mapping):
+        # Frozen contract keys are ASCII. Sorting them is therefore identical
+        # to RFC 8785's UTF-16 code-unit ordering without accepting extensions.
+        return "{" + ",".join(
+            _encode_jcs(key) + ":" + _encode_jcs(value[key]) for key in sorted(value)
+        ) + "}"
+    raise EventExportError(f"canonical JSON does not support {type(value).__name__}")
+
+
+def _jcs_float(value: float) -> str:
+    if not math.isfinite(value):
+        raise EventExportError("canonical JSON rejects non-finite numbers")
+    if value == 0:
+        return "0"
+    rendered = repr(value).lower()
+    absolute = abs(value)
+    if 1e-6 <= absolute < 1e21 and "e" in rendered:
+        return format(Decimal(rendered), "f")
+    if "e" in rendered:
+        mantissa, exponent = rendered.split("e", 1)
+        sign = ""
+        if exponent.startswith(("+", "-")):
+            sign, exponent = exponent[0], exponent[1:]
+        exponent = exponent.lstrip("0") or "0"
+        rendered = mantissa + "e" + sign + exponent
+    return rendered[:-2] if rendered.endswith(".0") else rendered

Brain/src/yovision_brain/integration/event_export/replay.py

@@ -0,0 +1,69 @@
+"""Durable atomic replay protection owned by the Brain connector."""
+
+from __future__ import annotations
+
+import sqlite3
+from pathlib import Path
+
+
+class SQLiteReplayCache:
+    """SQLite implementation of the machine-identity ``ReplayCache`` protocol.
+
+    A primary key makes consumption atomic across threads and processes. Entries
+    remain durable across connector restarts until their verifier expiry passes.
+    """
+
+    def __init__(self, database: str | Path, *, timeout_seconds: float = 5.0) -> None:
+        self._database = str(Path(database))
+        self._timeout_seconds = timeout_seconds
+        if timeout_seconds <= 0:
+            raise ValueError("SQLite replay timeout must be positive")
+        with self._connect() as connection:
+            connection.execute("PRAGMA journal_mode=WAL")
+            connection.execute(
+                """
+                CREATE TABLE IF NOT EXISTS machine_token_replay (
+                    principal TEXT NOT NULL,
+                    token_id TEXT NOT NULL,
+                    expires_at INTEGER NOT NULL,
+                    PRIMARY KEY (principal, token_id)
+                ) WITHOUT ROWID
+                """
+            )
+
+    def consume(self, principal: str, token_id: str, expires_at: int, now: int) -> bool:
+        if not principal or not token_id:
+            raise ValueError("replay identity must be non-empty")
+        if any(isinstance(value, bool) or not isinstance(value, int) for value in (expires_at, now)):
+            raise ValueError("replay timestamps must be integers")
+        if expires_at <= now:
+            return False
+
+        connection = self._connect()
+        try:
+            connection.execute("BEGIN IMMEDIATE")
+            connection.execute("DELETE FROM machine_token_replay WHERE expires_at <= ?", (now,))
+            try:
+                connection.execute(
+                    "INSERT INTO machine_token_replay (principal, token_id, expires_at) VALUES (?, ?, ?)",
+                    (principal, token_id, expires_at),
+                )
+            except sqlite3.IntegrityError:
+                connection.rollback()
+                return False
+            connection.commit()
+            return True
+        except BaseException:
+            connection.rollback()
+            raise
+        finally:
+            connection.close()
+
+    def _connect(self) -> sqlite3.Connection:
+        connection = sqlite3.connect(
+            self._database,
+            timeout=self._timeout_seconds,
+            isolation_level=None,
+        )
+        connection.execute(f"PRAGMA busy_timeout={int(self._timeout_seconds * 1000)}")
+        return connection

Brain/src/yovision_brain/integration/event_export/runtime.py

@@ -0,0 +1,134 @@
+"""Closed runtime configuration and event sink for Brain-to-Sense export."""
+
+from __future__ import annotations
+
+from pathlib import Path
+from typing import Mapping
+
+from yovision_brain.events import InternalEventCandidate
+from yovision_brain.integration.machine_identity import (
+    Signer,
+    TransportPolicy,
+    load_private_key,
+)
+
+from .client import HTTPSMachineIdentitySender
+from .mapper import canonical_json_bytes, export_event
+
+
+class EventExportSink:
+    def __init__(
+        self,
+        sender: HTTPSMachineIdentitySender,
+        *,
+        producer_id: str,
+        site_ref: str,
+        severity: str,
+        region_refs: Mapping[str, str],
+        crossing_directions: Mapping[str, str],
+    ) -> None:
+        self._sender = sender
+        self._producer_id = producer_id
+        self._site_ref = site_ref
+        self._severity = severity
+        self._region_refs = dict(region_refs)
+        self._crossing_directions = dict(crossing_directions)
+
+    def write(self, candidate: InternalEventCandidate) -> None:
+        event = export_event(
+            candidate,
+            producer_id=self._producer_id,
+            site_ref=self._site_ref,
+            severity=self._severity,
+            region_ref=self._region_refs.get(candidate.rule_id),
+            crossing_direction=self._crossing_directions.get(candidate.rule_id),
+        )
+        # Mapping and serialization happen before minting, so the exact bytes are
+        # bound to the machine token and remain unchanged for this delivery.
+        self._sender.send(canonical_json_bytes(event))
+
+
+def build_event_export_sink(raw: object, *, base_dir: Path) -> EventExportSink | None:
+    if raw is None:
+        return None
+    config = _object("event_export", raw)
+    _closed(
+        "event_export",
+        config,
+        {
+            "enabled", "endpoint", "producer_id", "site_ref", "severity",
+            "region_refs", "crossing_directions", "machine_identity", "transport",
+        },
+    )
+    enabled = config.get("enabled", False)
+    if not isinstance(enabled, bool):
+        raise ValueError("event_export.enabled must be a boolean")
+    if not enabled:
+        if set(config) != {"enabled"}:
+            raise ValueError("disabled event_export may only contain enabled")
+        return None
+
+    identity = _object("event_export.machine_identity", config.get("machine_identity"))
+    _closed(
+        "event_export.machine_identity",
+        identity,
+        {"principal", "key_id", "private_key_path"},
+    )
+    transport_raw = _object("event_export.transport", config.get("transport"))
+    _closed(
+        "event_export.transport",
+        transport_raw,
+        {
+            "tls_min_version", "verify_certificate", "verify_hostname",
+            "connect_timeout_ms", "response_header_timeout_ms", "request_timeout_ms",
+            "max_request_bytes",
+        },
+    )
+    policy = TransportPolicy(**transport_raw)  # type: ignore[arg-type]
+    policy.validate()
+    key_path = _string("private_key_path", identity.get("private_key_path"))
+    resolved_key_path = Path(key_path)
+    if not resolved_key_path.is_absolute():
+        resolved_key_path = base_dir / resolved_key_path
+    signer = Signer(
+        _string("principal", identity.get("principal")),
+        _string("key_id", identity.get("key_id")),
+        load_private_key(resolved_key_path),
+    )
+    return EventExportSink(
+        HTTPSMachineIdentitySender(
+            _string("endpoint", config.get("endpoint")), signer, policy
+        ),
+        producer_id=_string("producer_id", config.get("producer_id")),
+        site_ref=_string("site_ref", config.get("site_ref")),
+        severity=_string("severity", config.get("severity")),
+        region_refs=_string_map("region_refs", config.get("region_refs", {})),
+        crossing_directions=_string_map(
+            "crossing_directions", config.get("crossing_directions", {})
+        ),
+    )
+
+
+def _object(name: str, value: object) -> Mapping[str, object]:
+    if not isinstance(value, Mapping) or any(not isinstance(key, str) for key in value):
+        raise ValueError(f"{name} must be an object")
+    return value
+
+
+def _closed(name: str, value: Mapping[str, object], allowed: set[str]) -> None:
+    unknown = set(value) - allowed
+    if unknown:
+        raise ValueError(f"{name} contains unsupported fields")
+
+
+def _string(name: str, value: object) -> str:
+    if not isinstance(value, str) or not value.strip():
+        raise ValueError(f"event_export.{name} must be a non-empty string")
+    return value
+
+
+def _string_map(name: str, value: object) -> Mapping[str, str]:
+    mapping = _object(f"event_export.{name}", value)
+    if any(not isinstance(item, str) or not item for item in mapping.values()):
+        raise ValueError(f"event_export.{name} values must be non-empty strings")
+    return mapping  # type: ignore[return-value]

Brain/src/yovision_brain/integration/machine_identity/__init__.py

@@ -0,0 +1,37 @@
+"""Independent service-to-service machine identity for Brain connectors."""
+
+from .token import (
+    ALLOWED_SKEW_SECONDS,
+    MAX_KEY_OVERLAP_SECONDS,
+    MAX_LIFETIME_SECONDS,
+    VERSION,
+    Claims,
+    KeyRecord,
+    MachineIdentityError,
+    Registry,
+    ReplayStore,
+    Signer,
+    Verifier,
+    load_private_key,
+    load_registry,
+    bearer_token,
+)
+from .transport import TransportPolicy
+
+__all__ = [
+    "ALLOWED_SKEW_SECONDS",
+    "MAX_KEY_OVERLAP_SECONDS",
+    "MAX_LIFETIME_SECONDS",
+    "VERSION",
+    "Claims",
+    "KeyRecord",
+    "MachineIdentityError",
+    "Registry",
+    "ReplayStore",
+    "Signer",
+    "TransportPolicy",
+    "Verifier",
+    "load_private_key",
+    "load_registry",
+    "bearer_token",
+]

Brain/src/yovision_brain/integration/machine_identity/token.py

@@ -0,0 +1,336 @@
+"""Ed25519 request-bound machine tokens.
+
+This module never accepts browser cookies, GoAdmin JWTs, query tokens, or
+shared secrets. HTTP adapters must obtain the compact token exclusively from
+the Authorization bearer header and pass the request body unchanged.
+"""
+
+from __future__ import annotations
+
+import base64
+import hashlib
+import json
+import posixpath
+import re
+import secrets
+import threading
+import time
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Callable, Iterable, Protocol
+from urllib.parse import urlsplit
+
+from cryptography.exceptions import InvalidSignature
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric.ed25519 import (
+    Ed25519PrivateKey,
+    Ed25519PublicKey,
+)
+
+VERSION = "yovision.machine-identity/v1"
+TOKEN_TYPE = "YOVISION-MACHINE+JWT"
+MAX_LIFETIME_SECONDS = 300
+ALLOWED_SKEW_SECONDS = 30
+MAX_KEY_OVERLAP_SECONDS = 24 * 60 * 60
+_METHODS = frozenset({"GET", "POST", "PUT", "PATCH", "DELETE"})
+_AUDIENCES = frozenset({"yovision-sense", "yovision-brain", "yovision-bell"})
+_SCOPES = frozenset({"source-config:write", "runtime-status:write", "events:ingest", "evidence:read"})
+_PRINCIPAL = re.compile(r"^yv:(sense|brain|bell):[a-z0-9][a-z0-9.-]{0,62}$")
+_KEY_ID = re.compile(r"^[A-Za-z0-9._-]{8,64}$")
+_TOKEN_ID = re.compile(r"^[A-Za-z0-9_-]{22,64}$")
+
+
+class MachineIdentityError(ValueError):
+    """A stable, non-secret authentication failure."""
+
+    def __init__(self, code: str) -> None:
+        super().__init__(code)
+        self.code = code
+
+
+def bearer_token(authorization: str) -> str:
+    """Extract only an Authorization bearer token; there is no cookie/query fallback."""
+    parts = authorization.split(" ")
+    if len(parts) != 2 or parts[0].lower() != "bearer" or not parts[1] or any(character in parts[1] for character in " \t\r\n,"):
+        raise MachineIdentityError("machine_token_missing")
+    return parts[1]
+
+
+@dataclass(frozen=True)
+class Claims:
+    ver: str
+    iss: str
+    sub: str
+    aud: str
+    scope: tuple[str, ...]
+    iat: int
+    nbf: int
+    exp: int
+    jti: str
+    htm: str
+    htu: str
+    body_sha256: str
+
+
+@dataclass(frozen=True)
+class KeyRecord:
+    principal: str
+    key_id: str
+    public_key: Ed25519PublicKey
+    audience: str
+    scopes: frozenset[str]
+    enabled: bool = True
+    revoked: bool = False
+
+
+class Registry:
+    def __init__(self, records: Iterable[KeyRecord]) -> None:
+        self._lock = threading.RLock()
+        self._records: dict[str, KeyRecord] = {}
+        for record in records:
+            if not _KEY_ID.fullmatch(record.key_id) or not _PRINCIPAL.fullmatch(record.principal) or record.audience not in _AUDIENCES or not _valid_scopes(record.scopes):
+                raise ValueError("invalid machine key record")
+            if record.key_id in self._records:
+                raise ValueError("duplicate machine key id")
+            self._records[record.key_id] = record
+
+    def lookup(self, key_id: str) -> KeyRecord | None:
+        with self._lock:
+            return self._records.get(key_id)
+
+    def revoke(self, key_id: str) -> bool:
+        with self._lock:
+            record = self._records.get(key_id)
+            if record is None:
+                return False
+            self._records[key_id] = KeyRecord(
+                principal=record.principal,
+                key_id=record.key_id,
+                public_key=record.public_key,
+                audience=record.audience,
+                scopes=record.scopes,
+                enabled=record.enabled,
+                revoked=True,
+            )
+            return True
+
+
+class ReplayStore:
+    """Process-local replay cache for tests or one uninterrupted process."""
+    def __init__(self) -> None:
+        self._lock = threading.Lock()
+        self._used: dict[tuple[str, str], int] = {}
+
+    def consume(self, principal: str, token_id: str, expires_at: int, now: int) -> bool:
+        with self._lock:
+            self._used = {key: expiry for key, expiry in self._used.items() if expiry > now}
+            key = (principal, token_id)
+            if key in self._used:
+                return False
+            self._used[key] = expires_at
+            return True
+
+
+class ReplayCache(Protocol):
+    """Connector implementations provide an atomic durable implementation."""
+
+    def consume(self, principal: str, token_id: str, expires_at: int, now: int) -> bool: ...
+
+
+def load_private_key(path: str | Path) -> Ed25519PrivateKey:
+    if not str(path).strip():
+        raise ValueError("machine private key path is required")
+    try:
+        raw = Path(path).read_bytes()
+        key = serialization.load_pem_private_key(raw, password=None)
+    except (OSError, ValueError, TypeError) as exc:
+        raise ValueError("invalid machine private key file") from exc
+    if not isinstance(key, Ed25519PrivateKey):
+        raise ValueError("machine private key is not Ed25519")
+    return key
+
+
+def load_registry(path: str | Path, expected_audience: str) -> Registry:
+    if not str(path).strip() or expected_audience not in _AUDIENCES:
+        raise ValueError("machine principal registry path and audience are required")
+    try:
+        document = json.loads(Path(path).read_text(encoding="utf-8"))
+    except (OSError, UnicodeDecodeError, json.JSONDecodeError) as exc:
+        raise ValueError("invalid machine principal registry") from exc
+    if not isinstance(document, dict) or set(document) != {"version", "audience", "principals"} or document["version"] != "yovision.machine-principal-registry/v1" or document["audience"] != expected_audience or not isinstance(document["principals"], list) or not document["principals"]:
+        raise ValueError("invalid machine principal registry")
+    records: list[KeyRecord] = []
+    try:
+        for principal in document["principals"]:
+            if not isinstance(principal, dict) or set(principal) != {"principal_id", "enabled", "keys"} or not isinstance(principal["enabled"], bool) or not isinstance(principal["keys"], list) or not principal["keys"]:
+                raise ValueError
+            for key in principal["keys"]:
+                if not isinstance(key, dict) or set(key) != {"kid", "public_key_base64url", "status", "scopes"} or key["status"] not in {"active", "revoked"} or not isinstance(key["scopes"], list):
+                    raise ValueError
+                public_key = Ed25519PublicKey.from_public_bytes(_b64decode(key["public_key_base64url"]))
+                records.append(KeyRecord(principal["principal_id"], key["kid"], public_key, expected_audience, frozenset(key["scopes"]), principal["enabled"], key["status"] == "revoked"))
+    except (KeyError, TypeError, ValueError):
+        raise ValueError("invalid machine principal registry") from None
+    return Registry(records)
+
+
+class Signer:
+    def __init__(
+        self,
+        principal: str,
+        key_id: str,
+        private_key: Ed25519PrivateKey,
+        *,
+        clock: Callable[[], int] | None = None,
+    ) -> None:
+        if not _PRINCIPAL.fullmatch(principal) or not _KEY_ID.fullmatch(key_id) or not isinstance(private_key, Ed25519PrivateKey):
+            raise ValueError("incomplete machine signer configuration")
+        self._principal = principal
+        self._key_id = key_id
+        self._private_key = private_key
+        self._clock = clock or (lambda: int(time.time()))
+
+    def mint(self, audience: str, scopes: Iterable[str], method: str, request_path: str, body: bytes) -> str:
+        normalized_path = _normalize_path(request_path)
+        normalized_method = method.upper()
+        scope_values = tuple(scopes)
+        if audience not in _AUDIENCES or not _valid_scopes(scope_values) or normalized_method not in _METHODS:
+            raise ValueError("invalid machine token request")
+        now = int(self._clock())
+        header = {"alg": "EdDSA", "typ": TOKEN_TYPE, "kid": self._key_id, "ver": VERSION}
+        claims = {
+            "ver": VERSION,
+            "iss": self._principal,
+            "sub": self._principal,
+            "aud": audience,
+            "scope": list(scope_values),
+            "iat": now,
+            "nbf": now,
+            "exp": now + MAX_LIFETIME_SECONDS,
+            "jti": secrets.token_urlsafe(16),
+            "htm": normalized_method,
+            "htu": normalized_path,
+            "body_sha256": hashlib.sha256(body).hexdigest(),
+        }
+        encoded_header = _encode_json(header)
+        encoded_claims = _encode_json(claims)
+        signing_input = f"{encoded_header}.{encoded_claims}".encode("ascii")
+        signature = self._private_key.sign(signing_input)
+        return f"{encoded_header}.{encoded_claims}.{_b64encode(signature)}"
+
+
+class Verifier:
+    def __init__(
+        self,
+        registry: Registry,
+        replay_store: ReplayCache,
+        *,
+        clock: Callable[[], int] | None = None,
+    ) -> None:
+        self._registry = registry
+        self._replay_store = replay_store
+        self._clock = clock or (lambda: int(time.time()))
+
+    def verify(
+        self,
+        token: str,
+        audience: str,
+        required_scope: str,
+        method: str,
+        request_path: str,
+        body: bytes,
+    ) -> Claims:
+        parts = token.split(".")
+        if len(parts) != 3 or "=" in token:
+            raise MachineIdentityError("machine_token_invalid")
+        header = _decode_object(parts[0], {"alg", "typ", "kid", "ver"})
+        if header.get("alg") != "EdDSA" or header.get("typ") != TOKEN_TYPE or header.get("ver") != VERSION or not isinstance(header.get("kid"), str) or not _KEY_ID.fullmatch(header["kid"]):
+            raise MachineIdentityError("machine_token_invalid")
+        record = self._registry.lookup(header["kid"])
+        if record is None:
+            raise MachineIdentityError("machine_token_invalid")
+        try:
+            record.public_key.verify(_b64decode(parts[2]), f"{parts[0]}.{parts[1]}".encode("ascii"))
+        except (InvalidSignature, ValueError):
+            raise MachineIdentityError("machine_token_invalid") from None
+        if not record.enabled or record.revoked:
+            raise MachineIdentityError("machine_identity_revoked")
+
+        raw = _decode_object(parts[1], {"ver", "iss", "sub", "aud", "scope", "iat", "nbf", "exp", "jti", "htm", "htu", "body_sha256"})
+        claims = _claims_from_object(raw)
+        if claims.iss != record.principal or claims.sub != record.principal:
+            raise MachineIdentityError("machine_token_invalid")
+        now = int(self._clock())
+        if claims.exp - claims.iat <= 0 or claims.exp - claims.iat > MAX_LIFETIME_SECONDS or claims.nbf < claims.iat or claims.nbf > claims.exp or claims.iat > now + ALLOWED_SKEW_SECONDS:
+            raise MachineIdentityError("machine_token_invalid")
+        if claims.nbf > now + ALLOWED_SKEW_SECONDS or claims.exp < now - ALLOWED_SKEW_SECONDS:
+            raise MachineIdentityError("machine_token_expired")
+        if claims.aud != audience or record.audience != audience:
+            raise MachineIdentityError("machine_audience_denied")
+        if required_scope not in claims.scope or required_scope not in record.scopes:
+            raise MachineIdentityError("machine_scope_denied")
+        if claims.htm != method.upper() or claims.htu != _normalize_path(request_path) or claims.body_sha256 != hashlib.sha256(body).hexdigest():
+            raise MachineIdentityError("machine_token_invalid")
+        if not self._replay_store.consume(claims.iss, claims.jti, claims.exp + ALLOWED_SKEW_SECONDS, now):
+            raise MachineIdentityError("machine_token_replayed")
+        return claims
+
+
+def _claims_from_object(value: dict[str, object]) -> Claims:
+    try:
+        scope = value["scope"]
+        if not isinstance(scope, list) or not _valid_scopes(scope):
+            raise ValueError
+        integer_fields = ("iat", "nbf", "exp")
+        if any(not isinstance(value[field], int) or isinstance(value[field], bool) for field in integer_fields):
+            raise ValueError
+        string_fields = ("ver", "iss", "sub", "aud", "jti", "htm", "htu", "body_sha256")
+        if any(not isinstance(value[field], str) for field in string_fields):
+            raise ValueError
+        claims = Claims(scope=tuple(scope), **{key: value[key] for key in string_fields + integer_fields})
+        if claims.ver != VERSION or not _PRINCIPAL.fullmatch(claims.iss) or claims.iss != claims.sub or claims.aud not in _AUDIENCES or not _TOKEN_ID.fullmatch(claims.jti) or claims.htm not in _METHODS or len(claims.body_sha256) != 64:
+            raise ValueError
+        bytes.fromhex(claims.body_sha256)
+        _normalize_path(claims.htu)
+        return claims
+    except (KeyError, TypeError, ValueError):
+        raise MachineIdentityError("machine_token_invalid") from None
+
+
+def _normalize_path(value: str) -> str:
+    split = urlsplit(value)
+    if not value.startswith("/") or split.scheme or split.netloc or split.query or split.fragment or "\\" in split.path or "//" in split.path or posixpath.normpath(split.path) != split.path:
+        raise ValueError("machine request path must be normalized and contain no query or fragment")
+    return split.path
+
+
+def _valid_scopes(scopes: Iterable[str]) -> bool:
+    values = tuple(scopes)
+    return 1 <= len(values) <= 4 and len(set(values)) == len(values) and all(scope in _SCOPES for scope in values)
+
+
+def _encode_json(value: dict[str, object]) -> str:
+    return _b64encode(json.dumps(value, ensure_ascii=True, separators=(",", ":"), sort_keys=True).encode("utf-8"))
+
+
+def _decode_object(value: str, expected_keys: set[str]) -> dict[str, object]:
+    try:
+        decoded = json.loads(_b64decode(value).decode("utf-8"))
+    except (UnicodeDecodeError, ValueError, json.JSONDecodeError):
+        raise MachineIdentityError("machine_token_invalid") from None
+    if not isinstance(decoded, dict) or set(decoded) != expected_keys:
+        raise MachineIdentityError("machine_token_invalid")
+    return decoded
+
+
+def _b64encode(value: bytes) -> str:
+    return base64.urlsafe_b64encode(value).rstrip(b"=").decode("ascii")
+
+
+def _b64decode(value: str) -> bytes:
+    if not value or "=" in value:
+        raise ValueError("invalid base64url")
+    decoded = base64.b64decode(value + "=" * (-len(value) % 4), altchars=b"-_", validate=True)
+    if _b64encode(decoded) != value:
+        raise ValueError("non-canonical base64url")
+    return decoded

Brain/src/yovision_brain/integration/machine_identity/transport.py

@@ -0,0 +1,37 @@
+"""Fail-closed HTTPS transport policy for Brain connectors."""
+
+from __future__ import annotations
+
+import ssl
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True)
+class TransportPolicy:
+    tls_min_version: str
+    verify_certificate: bool
+    verify_hostname: bool
+    connect_timeout_ms: int
+    response_header_timeout_ms: int
+    request_timeout_ms: int
+    max_request_bytes: int
+
+    def validate(self) -> None:
+        if (
+            self.tls_min_version not in {"1.2", "1.3"}
+            or not self.verify_certificate
+            or not self.verify_hostname
+            or not 100 <= self.connect_timeout_ms <= 30_000
+            or not 100 <= self.response_header_timeout_ms <= 30_000
+            or not 100 <= self.request_timeout_ms <= 60_000
+            or not 1 <= self.max_request_bytes <= 10 * 1024 * 1024
+        ):
+            raise ValueError("machine transport policy is unsafe")
+
+    def ssl_context(self) -> ssl.SSLContext:
+        self.validate()
+        context = ssl.create_default_context(ssl.Purpose.SERVER_AUTH)
+        context.minimum_version = ssl.TLSVersion.TLSv1_3 if self.tls_min_version == "1.3" else ssl.TLSVersion.TLSv1_2
+        context.check_hostname = True
+        context.verify_mode = ssl.CERT_REQUIRED
+        return context

Brain/src/yovision_brain/integration/sense_control/__init__.py

@@ -0,0 +1,7 @@
+"""Credential-free Sense control-plane connector for Brain."""
+
+from .consumer import ApplyResult, SourceConfigConsumer, SourceConfigError
+from .replay import SQLiteReplayStore
+from .status import RuntimeStatusPublisher
+
+__all__ = ["ApplyResult", "SourceConfigConsumer", "SourceConfigError", "SQLiteReplayStore", "RuntimeStatusPublisher"]

Brain/src/yovision_brain/integration/sense_control/connector.py

@@ -0,0 +1,57 @@
+"""Machine-authenticated adapters with bounded timeout/backoff and a kill switch."""
+
+from __future__ import annotations
+
+import time
+import re
+from dataclasses import dataclass
+from typing import Callable
+
+from yovision_brain.integration.machine_identity.token import Signer, Verifier, bearer_token
+
+from .consumer import ApplyResult, SourceConfigConsumer
+
+_REQUEST_ID = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:-]{15,127}$")
+
+
+@dataclass(frozen=True, slots=True)
+class ConnectorResponse:
+    status: int
+    body: bytes
+    correlation_id: str
+
+
+class SourceConfigEndpoint:
+    def __init__(self, consumer: SourceConfigConsumer, verifier: Verifier, *, enabled: bool = True, max_body_bytes: int = 10 * 1024 * 1024) -> None:
+        self._consumer, self._verifier, self._enabled, self._max = consumer, verifier, enabled, max_body_bytes
+
+    def receive(self, authorization: str, body: bytes, correlation_id: str) -> ApplyResult:
+        if not self._enabled: raise RuntimeError("CONNECTOR_DISABLED")
+        if not _REQUEST_ID.fullmatch(correlation_id): raise ValueError("INVALID_CORRELATION_ID")
+        if len(body) > self._max: raise ValueError("REQUEST_TOO_LARGE")
+        token=bearer_token(authorization)
+        self._verifier.verify(token,"yovision-brain","source-config:write","POST","/machine/v1/source-config",body)
+        return self._consumer.apply(body)
+
+
+class StatusSender:
+    def __init__(self, signer: Signer, send: Callable[[str, bytes, str, float], ConnectorResponse], *, enabled: bool = True, timeout_seconds: float = 5.0, max_attempts: int = 4, sleeper: Callable[[float], None] = time.sleep) -> None:
+        if timeout_seconds <= 0 or max_attempts < 1: raise ValueError("invalid connector retry policy")
+        self._signer,self._send,self._enabled,self._timeout,self._attempts,self._sleep=signer,send,enabled,timeout_seconds,max_attempts,sleeper
+
+    def publish(self, body: bytes, correlation_id: str) -> ConnectorResponse:
+        if not self._enabled: raise RuntimeError("CONNECTOR_DISABLED")
+        if not _REQUEST_ID.fullmatch(correlation_id): raise ValueError("INVALID_CORRELATION_ID")
+        last: Exception|None=None
+        for attempt in range(self._attempts):
+            try:
+                # A retry gets a fresh jti: the previous request may have been
+                # accepted even when its response was lost.
+                token=self._signer.mint("yovision-sense",("runtime-status:write",),"POST","/machine/v1/runtime-status",body)
+                response=self._send("Bearer "+token,body,correlation_id,self._timeout)
+                if 200<=response.status<300:return response
+                if response.status<500:raise RuntimeError(f"STATUS_REJECTED_{response.status}")
+                last=RuntimeError(f"STATUS_REMOTE_{response.status}")
+            except (TimeoutError,ConnectionError) as exc:last=exc
+            if attempt+1<self._attempts:self._sleep(min(2**attempt,30))
+        raise RuntimeError("STATUS_DELIVERY_EXHAUSTED") from last

Brain/src/yovision_brain/integration/sense_control/consumer.py

@@ -0,0 +1,250 @@
+"""Strict source-config/v1 validation and atomic last-known-good application."""
+
+from __future__ import annotations
+
+import hashlib
+import hmac
+import json
+import re
+import sqlite3
+import threading
+import time
+from contextlib import closing
+from dataclasses import dataclass
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Callable, Mapping
+from urllib.parse import urlsplit
+
+from yovision_brain.rules.models import AreaDefinition, DirectionalLineDefinition, NormalizedPoint, RuleSet
+
+VERSION = "yovision.source-config/v1"
+_ID = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._~-]{0,127}$")
+_EXTENSION_NAMESPACE = re.compile(r"^[A-Za-z][A-Za-z0-9.-]{0,127}$")
+_SECRET = re.compile(r"password|secret|credential|cookie|jwt|username|stream_uri", re.I)
+
+
+class SourceConfigError(ValueError):
+    def __init__(self, code: str) -> None:
+        super().__init__(code)
+        self.code = code
+
+
+@dataclass(frozen=True, slots=True)
+class AppliedConfig:
+    config_id: str
+    revision: int
+    logical_device_id: str
+    media_ref: str
+    profile_encoding: str
+    frame_rate: float
+    rule_state: str
+    rules: RuleSet | None
+
+
+@dataclass(frozen=True, slots=True)
+class ApplyResult:
+    config_id: str
+    revision: int
+    state: str
+    config: AppliedConfig | None
+
+
+class SourceConfigConsumer:
+    """Persists validated snapshots before atomically changing the active pointer."""
+
+    def __init__(self, state_path: str | Path, *, clock: Callable[[], float] | None = None) -> None:
+        self._path = str(state_path)
+        self._clock = clock or time.time
+        self._lock = threading.RLock()
+        with closing(self._connect()) as connection:
+            connection.executescript(
+                """
+                CREATE TABLE IF NOT EXISTS source_snapshots (
+                    config_id TEXT NOT NULL, revision INTEGER NOT NULL, effective_at INTEGER NOT NULL,
+                    state TEXT NOT NULL, payload TEXT NOT NULL, PRIMARY KEY(config_id, revision));
+                CREATE TABLE IF NOT EXISTS source_active (
+                    config_id TEXT PRIMARY KEY, revision INTEGER NOT NULL,
+                    FOREIGN KEY(config_id, revision) REFERENCES source_snapshots(config_id, revision));
+                """
+            )
+            connection.commit()
+
+    def _connect(self) -> sqlite3.Connection:
+        connection = sqlite3.connect(self._path, timeout=5)
+        connection.execute("PRAGMA foreign_keys=ON")
+        connection.execute("PRAGMA journal_mode=WAL")
+        return connection
+
+    def apply(self, body: bytes) -> ApplyResult:
+        document = _parse_and_validate(body)
+        config_id, revision = document["config_id"], document["revision"]
+        mapped = _map(document)
+        effective_at = int(_timestamp(document["effective_at"]))
+        with self._lock, closing(self._connect()) as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            latest = connection.execute(
+                "SELECT revision, payload, state, effective_at FROM source_snapshots WHERE config_id=? ORDER BY revision DESC LIMIT 1",
+                (config_id,),
+            ).fetchone()
+            if latest and revision < latest[0]:
+                connection.rollback()
+                raise SourceConfigError("STALE_REVISION")
+            canonical = body.decode("utf-8")
+            if latest and revision == latest[0]:
+                if json.loads(latest[1]) != document:
+                    connection.rollback()
+                    raise SourceConfigError("REVISION_CONFLICT")
+                connection.rollback()
+                return ApplyResult(config_id, revision, "idempotent", self.get_active(config_id))
+            connection.execute(
+                "INSERT INTO source_snapshots(config_id, revision, effective_at, state, payload) VALUES (?, ?, ?, ?, ?)",
+                (config_id, revision, effective_at, document["rule_set"]["state"], canonical),
+            )
+            if effective_at <= int(self._clock()):
+                connection.execute(
+                    "INSERT INTO source_active(config_id, revision) VALUES (?, ?) ON CONFLICT(config_id) DO UPDATE SET revision=excluded.revision",
+                    (config_id, revision),
+                )
+                state = "applied"
+            else:
+                state = "scheduled"
+            connection.commit()
+        return ApplyResult(config_id, revision, state, mapped if state == "applied" else self.get_active(config_id))
+
+    def activate_due(self) -> tuple[AppliedConfig, ...]:
+        now = int(self._clock())
+        activated: list[AppliedConfig] = []
+        with self._lock, closing(self._connect()) as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            rows = connection.execute(
+                "SELECT s.payload FROM source_snapshots s JOIN (SELECT config_id, MAX(revision) revision FROM source_snapshots WHERE effective_at<=? GROUP BY config_id) d ON d.config_id=s.config_id AND d.revision=s.revision",
+                (now,),
+            ).fetchall()
+            for (payload,) in rows:
+                document = json.loads(payload)
+                connection.execute(
+                    "INSERT INTO source_active(config_id, revision) VALUES (?, ?) ON CONFLICT(config_id) DO UPDATE SET revision=excluded.revision",
+                    (document["config_id"], document["revision"]),
+                )
+                activated.append(_map(document))
+            connection.commit()
+        return tuple(activated)
+
+    def get_active(self, config_id: str) -> AppliedConfig | None:
+        with closing(self._connect()) as connection:
+            row = connection.execute(
+                "SELECT s.payload FROM source_active a JOIN source_snapshots s ON s.config_id=a.config_id AND s.revision=a.revision WHERE a.config_id=?",
+                (config_id,),
+            ).fetchone()
+        return _map(json.loads(row[0])) if row else None
+
+
+def _parse_and_validate(body: bytes) -> dict[str, object]:
+    try:
+        document = json.loads(body.decode("utf-8"))
+    except (UnicodeDecodeError, json.JSONDecodeError):
+        raise SourceConfigError("CONFIG_INVALID") from None
+    if not isinstance(document, dict):
+        raise SourceConfigError("CONFIG_INVALID")
+    if document.get("schema_version") != VERSION:
+        raise SourceConfigError("UNSUPPORTED_SCHEMA_VERSION")
+    if _contains_secret(document):
+        raise SourceConfigError("CONFIG_INVALID")
+    required = {"schema_version", "config_id", "revision", "published_at", "effective_at", "site", "logical_device", "profile", "media", "rule_set", "integrity"}
+    if set(document) - (required | {"extensions"}) or not required <= set(document):
+        raise SourceConfigError("CONFIG_INVALID")
+    extensions = document.get("extensions", {})
+    if not isinstance(extensions, dict) or any(
+        not isinstance(namespace, str)
+        or not _EXTENSION_NAMESPACE.fullmatch(namespace)
+        or not isinstance(value, dict)
+        for namespace, value in extensions.items()
+    ):
+        raise SourceConfigError("CONFIG_INVALID")
+    integrity = document.get("integrity")
+    if not isinstance(integrity, dict) or set(integrity) != {"algorithm", "value"} or integrity.get("algorithm") != "sha256":
+        raise SourceConfigError("CONFIG_INVALID")
+    unsigned = dict(document); unsigned.pop("integrity")
+    digest = hashlib.sha256(json.dumps(unsigned, ensure_ascii=False, separators=(",", ":"), sort_keys=True).encode()).hexdigest()
+    if not hmac.compare_digest(digest, str(integrity.get("value", ""))):
+        raise SourceConfigError("CONFIG_INVALID")
+    try:
+        if not _ID.fullmatch(document["config_id"]) or isinstance(document["revision"], bool) or document["revision"] < 1:
+            raise ValueError
+        published, effective = _timestamp(document["published_at"]), _timestamp(document["effective_at"])
+        if effective < published:
+            raise ValueError
+        for field in ("site", "logical_device"):
+            if not isinstance(document[field], dict) or set(document[field]) != {"id"} or not _ID.fullmatch(document[field]["id"]): raise ValueError
+        _validate_profile(document["profile"])
+        media = document["media"]
+        if not isinstance(media, dict) or set(media) != {"ref", "transport"} or media["transport"] != "rtsp" or not isinstance(media["ref"], str) or not media["ref"].startswith("media:") or any(marker in media["ref"] for marker in ("?", "#", "@", "\\", "://")): raise ValueError
+        _validate_rules(document["rule_set"], document["profile"])
+    except (KeyError, TypeError, ValueError, AttributeError):
+        raise SourceConfigError("CONFIG_INVALID") from None
+    return document
+
+
+def _validate_profile(profile: object) -> None:
+    if not isinstance(profile, dict) or set(profile) != {"id", "width", "height", "encoding", "frame_rate"}: raise ValueError
+    if not _ID.fullmatch(profile["id"]) or profile["encoding"] not in {"H264", "H265", "MJPEG"}: raise ValueError
+    for field in ("width", "height"):
+        if isinstance(profile[field], bool) or not isinstance(profile[field], int) or profile[field] < 1: raise ValueError
+    if isinstance(profile["frame_rate"], bool) or not isinstance(profile["frame_rate"], (int, float)) or profile["frame_rate"] <= 0: raise ValueError
+
+
+def _validate_rules(rules: object, profile: Mapping[str, object]) -> None:
+    if not isinstance(rules, dict) or set(rules) != {"version", "state", "profile_binding", "areas", "directional_lines"}: raise ValueError
+    if not _ID.fullmatch(rules["version"]) or rules["state"] not in {"active", "disabled", "recalibration_required"}: raise ValueError
+    binding = rules["profile_binding"]
+    if binding != {"profile_id": profile["id"], "width": profile["width"], "height": profile["height"]}: raise ValueError
+    if not isinstance(rules["areas"], list) or not isinstance(rules["directional_lines"], list) or len(rules["areas"]) > 1024 or len(rules["directional_lines"]) > 1024: raise ValueError
+    identifiers: set[str] = set()
+    for area in rules["areas"]:
+        if not isinstance(area, dict) or set(area) != {"id", "version", "kind", "enabled", "points"} or area["kind"] != "danger_area" or not isinstance(area["enabled"], bool) or not 3 <= len(area["points"]) <= 256: raise ValueError
+        _rule_identity(area, identifiers); points = tuple(_point(value) for value in area["points"])
+        polygon = sum(a[0]*b[1]-b[0]*a[1] for a,b in zip(points, points[1:]+points[:1])) / 2
+        if abs(polygon) < 1e-9: raise ValueError
+    for line in rules["directional_lines"]:
+        if not isinstance(line, dict) or set(line) != {"id", "version", "kind", "enabled", "start", "end", "trigger_direction"} or line["kind"] != "directional_line" or not isinstance(line["enabled"], bool) or line["trigger_direction"] not in {"left_to_right", "right_to_left"}: raise ValueError
+        _rule_identity(line, identifiers)
+        if _point(line["start"]) == _point(line["end"]): raise ValueError
+
+
+def _rule_identity(rule: Mapping[str, object], identifiers: set[str]) -> None:
+    if not isinstance(rule["id"], str) or not _ID.fullmatch(rule["id"]) or rule["id"] in identifiers or isinstance(rule["version"], bool) or not isinstance(rule["version"], int) or rule["version"] < 1: raise ValueError
+    identifiers.add(rule["id"])
+
+
+def _point(value: object) -> tuple[float, float]:
+    if not isinstance(value, dict) or set(value) != {"x", "y"}: raise ValueError
+    x, y = value["x"], value["y"]
+    if isinstance(x, bool) or isinstance(y, bool) or not isinstance(x, (int,float)) or not isinstance(y,(int,float)) or not 0 <= x <= 1 or not 0 <= y <= 1: raise ValueError
+    return float(x), float(y)
+
+
+def _map(document: Mapping[str, object]) -> AppliedConfig:
+    profile, rules = document["profile"], document["rule_set"]
+    rule_set = None
+    if rules["state"] == "active":
+        rule_set = RuleSet(
+            version=rules["version"], profile_id=profile["id"], width=profile["width"], height=profile["height"],
+            areas=tuple(AreaDefinition(a["id"], tuple(NormalizedPoint(**p) for p in a["points"])) for a in rules["areas"] if a["enabled"]),
+            directional_lines=tuple(DirectionalLineDefinition(l["id"], NormalizedPoint(**l["start"]), NormalizedPoint(**l["end"]), l["trigger_direction"]) for l in rules["directional_lines"] if l["enabled"]),
+        )
+    return AppliedConfig(document["config_id"], document["revision"], document["logical_device"]["id"], document["media"]["ref"], profile["encoding"], float(profile["frame_rate"]), rules["state"], rule_set)
+
+
+def _timestamp(value: object) -> float:
+    if not isinstance(value, str) or not value.endswith("Z"): raise ValueError
+    return datetime.fromisoformat(value[:-1] + "+00:00").astimezone(timezone.utc).timestamp()
+
+
+def _contains_secret(value: object) -> bool:
+    if isinstance(value, dict): return any(_SECRET.search(str(k)) or _contains_secret(v) for k,v in value.items())
+    if isinstance(value, list): return any(_contains_secret(item) for item in value)
+    if isinstance(value, str):
+        split=urlsplit(value)
+        return bool(split.username or split.password or value.startswith("file:") or re.match(r"^[A-Za-z]:[\\/]", value))
+    return False

Brain/src/yovision_brain/integration/sense_control/replay.py

@@ -0,0 +1,44 @@
+"""Brain-owned durable replay storage; never shared with Sense or Bell."""
+
+from __future__ import annotations
+
+import sqlite3
+import threading
+from contextlib import closing
+from pathlib import Path
+
+
+class SQLiteReplayStore:
+    def __init__(self, path: str | Path) -> None:
+        self._path = str(path)
+        self._lock = threading.Lock()
+        with closing(self._connect()) as connection:
+            connection.execute("PRAGMA journal_mode=WAL")
+            connection.execute(
+                "CREATE TABLE IF NOT EXISTS machine_replay (principal TEXT NOT NULL, token_id TEXT NOT NULL, expires_at INTEGER NOT NULL, PRIMARY KEY(principal, token_id))"
+            )
+
+    def _connect(self) -> sqlite3.Connection:
+        connection = sqlite3.connect(self._path, timeout=5, isolation_level=None)
+        connection.execute("PRAGMA busy_timeout=5000")
+        return connection
+
+    def consume(self, principal: str, token_id: str, expires_at: int, now: int) -> bool:
+        if not principal or not token_id or expires_at <= now:
+            return False
+        with self._lock, closing(self._connect()) as connection:
+            try:
+                connection.execute("BEGIN IMMEDIATE")
+                connection.execute("DELETE FROM machine_replay WHERE expires_at <= ?", (now,))
+                connection.execute(
+                    "INSERT INTO machine_replay(principal, token_id, expires_at) VALUES (?, ?, ?)",
+                    (principal, token_id, expires_at),
+                )
+                connection.execute("COMMIT")
+                return True
+            except sqlite3.IntegrityError:
+                connection.execute("ROLLBACK")
+                return False
+            except Exception:
+                connection.execute("ROLLBACK")
+                return False

Brain/src/yovision_brain/integration/sense_control/status.py

@@ -0,0 +1,77 @@
+"""Persistent sequence allocation and safe runtime-status/v1 production."""
+
+from __future__ import annotations
+
+import json
+import re
+import sqlite3
+import threading
+import uuid
+from contextlib import closing
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Mapping, Sequence
+
+_LOGICAL_REF = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$")
+_VERSION = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._+-]{0,63}$")
+_ERROR_CODE = re.compile(r"^[A-Z][A-Z0-9_]{2,63}$")
+_RUNTIME_STATES = {"unconfigured", "starting", "running", "degraded", "failed", "stopped"}
+
+
+class RuntimeStatusPublisher:
+    def __init__(self, state_path: str | Path, brain_instance_ref: str) -> None:
+        self._path, self._instance, self._lock = str(state_path), brain_instance_ref, threading.Lock()
+        with closing(self._connect()) as connection:
+            connection.execute("CREATE TABLE IF NOT EXISTS runtime_sequence(instance_ref TEXT PRIMARY KEY, sequence INTEGER NOT NULL)")
+            connection.commit()
+
+    def _connect(self) -> sqlite3.Connection:
+        return sqlite3.connect(self._path, timeout=5)
+
+    def build(self, *, runtime_state: str, runtime_version: str, started_at: datetime | None, model_ref: str, model_version: str, configurations: Sequence[Mapping[str, object]], health: Mapping[str, object], inputs: Sequence[Mapping[str, object]], observed_at: datetime | None = None) -> bytes:
+        _validate(runtime_state, runtime_version, self._instance, model_ref, model_version, configurations, health, inputs)
+        with self._lock, closing(self._connect()) as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            row=connection.execute("SELECT sequence FROM runtime_sequence WHERE instance_ref=?",(self._instance,)).fetchone();sequence=(row[0]+1) if row else 0
+            connection.execute("INSERT INTO runtime_sequence(instance_ref,sequence) VALUES(?,?) ON CONFLICT(instance_ref) DO UPDATE SET sequence=excluded.sequence",(self._instance,sequence));connection.commit()
+        observed=(observed_at or datetime.now(timezone.utc)).astimezone(timezone.utc)
+        document={"schema_version":"yovision.runtime-status/v1","status_id":str(uuid.uuid4()),"brain_instance_ref":self._instance,"sequence":sequence,"observed_at":_utc(observed),"runtime":{"state":runtime_state,"version":runtime_version,"started_at":_utc(started_at) if started_at else None},"model":{"model_ref":model_ref,"version":model_version},"configurations":list(configurations),"health":dict(health),"inputs":list(inputs)}
+        raw=json.dumps(document,separators=(",",":"),sort_keys=True).encode()
+        lowered=raw.lower();
+        for marker in (b"password",b"credential",b"stream_uri",b"cookie",b"jwt",b"file://"):
+            if marker in lowered: raise ValueError("runtime status contains sensitive field")
+        return raw
+
+
+def _utc(value: datetime) -> str:
+    if value.tzinfo is None: raise ValueError("runtime timestamp must be timezone-aware")
+    return value.astimezone(timezone.utc).isoformat(timespec="seconds").replace("+00:00","Z")
+
+
+def _validate(runtime_state: str, runtime_version: str, instance: str, model_ref: str, model_version: str, configurations: Sequence[Mapping[str, object]], health: Mapping[str, object], inputs: Sequence[Mapping[str, object]]) -> None:
+    if runtime_state not in _RUNTIME_STATES or not _VERSION.fullmatch(runtime_version) or not _LOGICAL_REF.fullmatch(instance) or not _LOGICAL_REF.fullmatch(model_ref) or not _VERSION.fullmatch(model_version):
+        raise ValueError("invalid runtime identity or version")
+    if len(configurations) > 4096 or len(inputs) > 4096:
+        raise ValueError("runtime status collection too large")
+    seen: set[str] = set()
+    for item in configurations:
+        if set(item) != {"config_id", "apply_state", "applied_revision", "error_code"} or not isinstance(item["config_id"], str) or not _LOGICAL_REF.fullmatch(item["config_id"]) or item["config_id"] in seen:
+            raise ValueError("invalid configuration status")
+        seen.add(item["config_id"]); state=item["apply_state"]; revision=item["applied_revision"]; error=item["error_code"]
+        if state not in {"not_configured","applying","applied","rejected"} or (state=="not_configured" and revision is not None) or (state=="applied" and (isinstance(revision,bool) or not isinstance(revision,int) or revision<1)) or (state=="rejected" and (not isinstance(error,str) or not _ERROR_CODE.fullmatch(error))):
+            raise ValueError("invalid configuration status")
+    if set(health) != {"overall","error_codes","metrics"} or health["overall"] not in {"healthy","degraded","unhealthy"} or not _codes(health["error_codes"],32) or not _metrics(health["metrics"]):
+        raise ValueError("invalid health status")
+    for item in inputs:
+        if set(item) != {"input_ref","state","error_codes","metrics"} or not isinstance(item["input_ref"],str) or not _LOGICAL_REF.fullmatch(item["input_ref"]) or item["state"] not in _RUNTIME_STATES or not _codes(item["error_codes"],16) or not _metrics(item["metrics"]):
+            raise ValueError("invalid input status")
+
+
+def _codes(value: object, limit: int) -> bool:
+    return isinstance(value,list) and len(value)<=limit and len(set(value))==len(value) and all(isinstance(code,str) and _ERROR_CODE.fullmatch(code) for code in value)
+
+
+def _metrics(value: object) -> bool:
+    if not isinstance(value,Mapping) or set(value)!={"load_percent","queue_depth","latency_ms"}: return False
+    load,queue,latency=value["load_percent"],value["queue_depth"],value["latency_ms"]
+    return not isinstance(load,bool) and isinstance(load,(int,float)) and 0<=load<=100 and not isinstance(queue,bool) and isinstance(queue,int) and queue>=0 and not isinstance(latency,bool) and isinstance(latency,(int,float)) and latency>=0

Brain/tests/app/test_event_export_connector.py

@@ -0,0 +1,254 @@
+from __future__ import annotations
+
+import io
+import hashlib
+import json
+import re
+import urllib.error
+from pathlib import Path
+
+import pytest
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+from cryptography.hazmat.primitives import serialization
+
+import yovision_brain.app.__main__ as cli
+import yovision_brain.integration.event_export.runtime as export_runtime
+from yovision_brain.integration.event_export import (
+    EventDeliveryError,
+    HTTPSMachineIdentitySender,
+)
+from yovision_brain.integration.machine_identity import (
+    KeyRecord,
+    Registry,
+    ReplayStore,
+    Signer,
+    TransportPolicy,
+    Verifier,
+    bearer_token,
+)
+
+FIXTURE = Path(__file__).parents[1] / "fixtures" / "events" / "area.json"
+
+
+def _policy() -> TransportPolicy:
+    return TransportPolicy(
+        tls_min_version="1.2",
+        verify_certificate=True,
+        verify_hostname=True,
+        connect_timeout_ms=1_000,
+        response_header_timeout_ms=1_000,
+        request_timeout_ms=2_000,
+        max_request_bytes=64 * 1024,
+    )
+
+
+class _Response:
+    status = 202
+
+    def __init__(self, body: bytes, request_id: str) -> None:
+        self.body = body
+        self.headers = {"X-Request-ID": request_id}
+        self.closed = False
+
+    def read(self, amount: int = -1) -> bytes:
+        return self.body[:amount] if amount >= 0 else self.body
+
+    def close(self) -> None:
+        self.closed = True
+
+
+class _VerifyingOpener:
+    def __init__(self, verifier: Verifier) -> None:
+        self.verifier = verifier
+        self.requests = []
+
+    def open(self, request, timeout: float) -> _Response:  # noqa: ANN001
+        self.requests.append((request, timeout))
+        body = request.data
+        self.verifier.verify(
+            bearer_token(request.get_header("Authorization")),
+            "yovision-sense",
+            "events:ingest",
+            request.method,
+            "/v1/events",
+            body,
+        )
+        event = json.loads(body)
+        return _Response(json.dumps({
+            "producer_id": event["producer_id"],
+            "source_event_id": event["source_event_id"],
+            "payload_sha256": hashlib.sha256(body).hexdigest(),
+            "disposition": "accepted",
+        }).encode(), request.get_header("X-request-id"))
+
+
+def test_sender_binds_exact_path_body_and_safe_request_id() -> None:
+    private_key = Ed25519PrivateKey.generate()
+    signer = Signer("yv:brain:school-a", "brain-key-0001", private_key, clock=lambda: 100)
+    registry = Registry(
+        [
+            KeyRecord(
+                principal="yv:brain:school-a",
+                key_id="brain-key-0001",
+                public_key=private_key.public_key(),
+                audience="yovision-sense",
+                scopes=frozenset({"events:ingest"}),
+            )
+        ]
+    )
+    opener = _VerifyingOpener(Verifier(registry, ReplayStore(), clock=lambda: 100))
+    sender = HTTPSMachineIdentitySender(
+        "https://sense.example:8443", signer, _policy(), opener=opener
+    )
+
+    result = sender.send(
+        b'{"producer_id":"brain-school-a","schema_version":"yovision.event/v1",'
+        b'"source_event_id":"evt-1"}'
+    )
+
+    request, timeout = opener.requests[0]
+    assert request.full_url == "https://sense.example:8443/v1/events"
+    assert request.method == "POST"
+    assert request.get_header("Content-type") == "application/json"
+    assert re.fullmatch(r"[A-Za-z0-9][A-Za-z0-9._:-]{15,127}", result.request_id)
+    assert request.get_header("X-request-id") == result.request_id
+    assert (result.disposition, timeout) == ("accepted", 2.0)
+
+
+def test_sender_rejects_plaintext_and_marks_conflict_terminal() -> None:
+    key = Ed25519PrivateKey.generate()
+    signer = Signer("yv:brain:school-a", "brain-key-0001", key)
+    with pytest.raises(ValueError, match="HTTPS origin"):
+        HTTPSMachineIdentitySender("http://sense.example", signer, _policy())
+
+    class ConflictOpener:
+        def open(self, request, timeout: float):  # noqa: ANN001, ARG002
+            raise urllib.error.HTTPError(
+                request.full_url,
+                409,
+                "Conflict",
+                {},
+                io.BytesIO(b'{"code":"event_identity_conflict"}'),
+            )
+
+    sender = HTTPSMachineIdentitySender(
+        "https://sense.example", signer, _policy(), opener=ConflictOpener()
+    )
+    with pytest.raises(EventDeliveryError) as caught:
+        sender.send(b"{}")
+    assert (caught.value.code, caught.value.terminal) == (
+        "event_identity_conflict",
+        True,
+    )
+
+
+def test_disabled_connector_keeps_existing_json_lines_output(tmp_path: Path) -> None:
+    raw = json.loads(FIXTURE.read_text(encoding="utf-8"))
+    raw["event_export"] = {"enabled": False}
+    config = tmp_path / "brain.json"
+    config.write_text(json.dumps(raw), encoding="utf-8")
+    output = tmp_path / "events.jsonl"
+
+    assert cli.main(["--config", str(config), "--output", str(output)]) == 0
+    assert json.loads(output.read_text(encoding="utf-8"))["schema"] == (
+        "brain.internal.event-candidate/v1"
+    )
+
+
+def test_delivery_failure_is_nonzero_and_not_silently_reported_as_success(
+    monkeypatch: pytest.MonkeyPatch,
+    capsys: pytest.CaptureFixture[str],
+    tmp_path: Path,
+) -> None:
+    class FailingSink:
+        def write(self, candidate) -> None:  # noqa: ANN001, ARG002
+            raise EventDeliveryError("event_delivery_unavailable", terminal=False)
+
+    monkeypatch.setattr(cli, "build_event_export_sink", lambda raw, base_dir: FailingSink())
+    unused_output = tmp_path / "disabled-json-lines-target"
+    unused_output.write_text("must remain unchanged", encoding="utf-8")
+    result = cli.main(
+        ["--config", str(FIXTURE), "--output", str(unused_output)]
+    )
+
+    assert result == 3
+    error = json.loads(capsys.readouterr().err.splitlines()[0])
+    assert error == {"status": "error", "message": "event_delivery_unavailable"}
+    assert unused_output.read_text(encoding="utf-8") == "must remain unchanged"
+
+
+def test_inline_private_key_material_is_rejected_without_echo(
+    tmp_path: Path, capsys: pytest.CaptureFixture[str]
+) -> None:
+    raw = json.loads(FIXTURE.read_text(encoding="utf-8"))
+    marker = "INLINE-PRIVATE-MATERIAL-MUST-NOT-LEAK"
+    raw["event_export"] = {
+        "enabled": True,
+        "endpoint": "https://sense.example",
+        "producer_id": "brain-school-a",
+        "site_ref": "site-school-a",
+        "severity": "high",
+        "region_refs": {},
+        "crossing_directions": {},
+        "machine_identity": {
+            "principal": "yv:brain:school-a",
+            "key_id": "brain-key-0001",
+            "private_key_path": "external.pem",
+            "private_key": marker,
+        },
+        "transport": {},
+    }
+    config = tmp_path / "brain.json"
+    config.write_text(json.dumps(raw), encoding="utf-8")
+
+    assert cli.main(["--config", str(config)]) == 3
+    assert marker not in capsys.readouterr().err
+
+
+def test_enabled_config_loads_machine_key_only_from_external_path(
+    tmp_path: Path, monkeypatch: pytest.MonkeyPatch
+) -> None:
+    key_path = tmp_path / "brain-machine.pem"
+    key_path.write_bytes(
+        Ed25519PrivateKey.generate().private_bytes(
+            serialization.Encoding.PEM,
+            serialization.PrivateFormat.PKCS8,
+            serialization.NoEncryption(),
+        )
+    )
+    captured = {}
+
+    class Sender:
+        def __init__(self, endpoint, signer, policy) -> None:  # noqa: ANN001
+            captured.update(endpoint=endpoint, signer=signer, policy=policy)
+
+    monkeypatch.setattr(export_runtime, "HTTPSMachineIdentitySender", Sender)
+    sink = export_runtime.build_event_export_sink(
+        {
+            "enabled": True,
+            "endpoint": "https://sense.example",
+            "producer_id": "brain-school-a",
+            "site_ref": "site-school-a",
+            "severity": "high",
+            "region_refs": {},
+            "crossing_directions": {},
+            "machine_identity": {
+                "principal": "yv:brain:school-a",
+                "key_id": "brain-key-0001",
+                "private_key_path": key_path.name,
+            },
+            "transport": {
+                "tls_min_version": "1.2",
+                "verify_certificate": True,
+                "verify_hostname": True,
+                "connect_timeout_ms": 1_000,
+                "response_header_timeout_ms": 1_000,
+                "request_timeout_ms": 2_000,
+                "max_request_bytes": 64 * 1024,
+            },
+        },
+        base_dir=tmp_path,
+    )
+
+    assert sink is not None
+    assert captured["endpoint"] == "https://sense.example"

Brain/tests/integration/event_export/test_mapper.py

@@ -0,0 +1,148 @@
+from __future__ import annotations
+
+import json
+from pathlib import Path
+
+import pytest
+
+from yovision_brain.events import INTERNAL_EVENT_SCHEMA, InternalEventCandidate
+from yovision_brain.integration.event_export import EventExportError, canonical_json, export_event, payload_sha256
+
+ROOT = Path(__file__).resolve().parents[4]
+
+
+def _candidate(**changes: object) -> InternalEventCandidate:
+    values: dict[str, object] = {
+        "schema": INTERNAL_EVENT_SCHEMA,
+        "event_id": "evt-area-20260831-0001",
+        "logical_input_id": "camera-east-gate",
+        "event_type": "danger_area_entered",
+        "occurred_at_ns": 1_788_134_401_125_000_000,
+        "rule_id": "rule-east-danger",
+        "rule_version": "3",
+        "model_name": "anonymous-detector",
+        "model_version": "2026.08",
+        "profile_id": "profile-main-stream",
+        "frame_width": 100,
+        "frame_height": 100,
+        "track_id": "track-0042",
+        "observation": {
+            "category": "anonymous_target",
+            "confidence": 0.93,
+            "box": {"left": 12, "top": 20, "right": 31, "bottom": 74},
+            "anchor": {"x": 0.21, "y": 0.74},
+        },
+        "reason": "entered polygon",
+    }
+    values.update(changes)
+    return InternalEventCandidate(**values)  # type: ignore[arg-type]
+
+
+def _fixture(relative: str) -> dict[str, object]:
+    return json.loads((ROOT / relative).read_text(encoding="utf-8"))
+
+
+def test_brain_mapper_matches_frozen_producer_fixture_and_jcs_digest() -> None:
+    pending = _fixture("contracts/evidence/v1/examples/pending.json")
+    expected = _fixture("contracts/events/v1/examples/dangerous-area.json")
+    event = export_event(
+        _candidate(),
+        producer_id="brain-school-a",
+        site_ref="site-school-a",
+        severity="high",
+        evidence=[pending],
+        region_ref="region-east-danger",
+    )
+
+    assert event == expected
+    assert payload_sha256(event) == "4cc1e93820195caf713ea675ff33f178c9d4997dd8a81cb61287e9fea0e3d5e1"
+
+
+def test_retry_mapping_preserves_original_identity_and_payload() -> None:
+    candidate = _candidate()
+    arguments = {
+        "producer_id": "brain-school-a",
+        "site_ref": "site-school-a",
+        "severity": "high",
+        "evidence": [_fixture("contracts/evidence/v1/examples/pending.json")],
+        "region_ref": "region-east-danger",
+    }
+    first = export_event(candidate, **arguments)
+    retry = export_event(candidate, **arguments)
+
+    assert (first["producer_id"], first["source_event_id"]) == (
+        "brain-school-a",
+        candidate.event_id,
+    )
+    assert retry == first
+    assert payload_sha256(retry) == payload_sha256(first)
+
+
+@pytest.mark.parametrize("fixture", ["pending.json", "failed.json"])
+def test_evidence_degradation_states_are_exported_unchanged(fixture: str) -> None:
+    evidence = _fixture(f"contracts/evidence/v1/examples/{fixture}")
+    candidate = _candidate()
+    if fixture == "failed.json":
+        candidate = _candidate(
+            event_id="evt-line-20260831-0002",
+            logical_input_id="camera-north-corridor",
+            event_type="directional_line_crossed",
+            occurred_at_ns=1_788_134_590_000_000_000,
+            rule_id="rule-north-one-way",
+            rule_version="1",
+            track_id="track-0088",
+            observation={"category": "anonymous_target", "confidence": 0.88},
+        )
+    event = export_event(
+        candidate,
+        producer_id="brain-school-a",
+        site_ref="site-school-a",
+        severity="medium" if fixture == "failed.json" else "high",
+        evidence=[evidence],
+        region_ref="line-north-one-way" if fixture == "failed.json" else "region-east-danger",
+        crossing_direction="b_to_a" if fixture == "failed.json" else None,
+    )
+
+    assert event["evidence"] == [evidence]
+
+
+@pytest.mark.parametrize(
+    "unsafe",
+    [
+        {"local_path": "D:/captures/frame.jpg"},
+        {"url": "https://example.invalid/signed"},
+        {"token": "not-a-real-token"},
+    ],
+)
+def test_evidence_rejects_paths_urls_and_sensitive_fields(unsafe: dict[str, object]) -> None:
+    evidence = _fixture("contracts/evidence/v1/examples/pending.json")
+    evidence.update(unsafe)
+    with pytest.raises(EventExportError, match="forbidden"):
+        export_event(
+            _candidate(),
+            producer_id="brain-school-a",
+            site_ref="site-school-a",
+            severity="high",
+            evidence=[evidence],
+            region_ref="region-east-danger",
+        )
+
+
+def test_failed_evidence_cannot_claim_success_content() -> None:
+    evidence = _fixture("contracts/evidence/v1/examples/failed.json")
+    evidence["content_type"] = "video/mp4"
+    with pytest.raises(EventExportError, match="failed evidence"):
+        export_event(
+            _candidate(),
+            producer_id="brain-school-a",
+            site_ref="site-school-a",
+            severity="high",
+            evidence=[evidence],
+            region_ref="region-east-danger",
+        )
+
+
+def test_jcs_normalizes_number_lexemes_and_negative_zero() -> None:
+    assert canonical_json({"small": 1e-7, "fixed": 1e20, "zero": -0.0}) == (
+        '{"fixed":100000000000000000000,"small":1e-7,"zero":0}'
+    )

Brain/tests/integration/event_export/test_replay.py

@@ -0,0 +1,56 @@
+from __future__ import annotations
+
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+import pytest
+
+from yovision_brain.integration.event_export import SQLiteReplayCache
+from yovision_brain.integration.machine_identity import (
+    KeyRecord,
+    MachineIdentityError,
+    Registry,
+    Signer,
+    Verifier,
+)
+
+
+def test_replay_cache_rejects_same_jti_after_connector_restart(tmp_path) -> None:
+    now = 1_800_000_000
+    private_key = Ed25519PrivateKey.generate()
+    registry = Registry(
+        [
+            KeyRecord(
+                principal="yv:brain:node-a",
+                key_id="brain-key-0001",
+                public_key=private_key.public_key(),
+                audience="yovision-sense",
+                scopes=frozenset({"events:ingest"}),
+            )
+        ]
+    )
+    token = Signer(
+        "yv:brain:node-a",
+        "brain-key-0001",
+        private_key,
+        clock=lambda: now,
+    ).mint("yovision-sense", ["events:ingest"], "POST", "/v1/events", b"{}")
+    database = tmp_path / "machine-replay.sqlite3"
+
+    first_process = Verifier(registry, SQLiteReplayCache(database), clock=lambda: now)
+    claims = first_process.verify(
+        token, "yovision-sense", "events:ingest", "POST", "/v1/events", b"{}"
+    )
+    assert claims.iss == "yv:brain:node-a"
+
+    restarted_process = Verifier(registry, SQLiteReplayCache(database), clock=lambda: now)
+    with pytest.raises(MachineIdentityError, match="machine_token_replayed") as caught:
+        restarted_process.verify(
+            token, "yovision-sense", "events:ingest", "POST", "/v1/events", b"{}"
+        )
+    assert caught.value.code == "machine_token_replayed"
+
+
+def test_replay_cache_atomically_reuses_expired_identity(tmp_path) -> None:
+    cache = SQLiteReplayCache(tmp_path / "machine-replay.sqlite3")
+    assert cache.consume("yv:brain:node-a", "jti-one", expires_at=110, now=100)
+    assert not cache.consume("yv:brain:node-a", "jti-one", expires_at=110, now=101)
+    assert cache.consume("yv:brain:node-a", "jti-one", expires_at=130, now=110)

Brain/tests/integration/sense_control/test_connector.py

@@ -0,0 +1,101 @@
+from __future__ import annotations
+
+import hashlib
+import json
+import threading
+from datetime import datetime, timedelta, timezone
+
+import pytest
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+
+from yovision_brain.integration.machine_identity.token import KeyRecord, Registry, Signer, Verifier
+from yovision_brain.integration.sense_control.connector import ConnectorResponse, SourceConfigEndpoint, StatusSender
+from yovision_brain.integration.sense_control.consumer import SourceConfigConsumer, SourceConfigError
+from yovision_brain.integration.sense_control.replay import SQLiteReplayStore
+from yovision_brain.integration.sense_control.status import RuntimeStatusPublisher
+
+
+def source_document(revision: int = 1, *, state: str = "active", effective: int = 0) -> bytes:
+    now=datetime(2026,8,31,tzinfo=timezone.utc)
+    document={"schema_version":"yovision.source-config/v1","config_id":"gate-primary","revision":revision,"published_at":now.isoformat().replace("+00:00","Z"),"effective_at":(now+timedelta(seconds=effective)).isoformat().replace("+00:00","Z"),"site":{"id":"site-east"},"logical_device":{"id":"camera-1"},"profile":{"id":"main","width":1920,"height":1080,"encoding":"H264","frame_rate":25},"media":{"ref":"media:site-east/camera-1/main","transport":"rtsp"},"rule_set":{"version":f"rules-{revision}","state":state,"profile_binding":{"profile_id":"main","width":1920,"height":1080},"areas":[{"id":"danger","version":1,"kind":"danger_area","enabled":True,"points":[{"x":.1,"y":.1},{"x":.8,"y":.1},{"x":.5,"y":.8}]}],"directional_lines":[]}}
+    digest=hashlib.sha256(json.dumps(document,separators=(",",":"),sort_keys=True).encode()).hexdigest();document["integrity"]={"algorithm":"sha256","value":digest}
+    return json.dumps(document,separators=(",",":"),sort_keys=True).encode()
+
+
+def with_extension(body: bytes, extensions: object) -> bytes:
+    document=json.loads(body);document["extensions"]=extensions;unsigned=dict(document);unsigned.pop("integrity");document["integrity"]["value"]=hashlib.sha256(json.dumps(unsigned,separators=(",",":"),sort_keys=True).encode()).hexdigest();return json.dumps(document,separators=(",",":"),sort_keys=True).encode()
+
+
+def identity(tmp_path, now: int):
+    private=Ed25519PrivateKey.generate();signer=Signer("yv:sense:east","sense-key-01",private,clock=lambda:now)
+    registry=Registry([KeyRecord("yv:sense:east","sense-key-01",private.public_key(),"yovision-brain",frozenset({"source-config:write"}))])
+    replay=SQLiteReplayStore(tmp_path/"replay.sqlite")
+    return signer,Verifier(registry,replay,clock=lambda:now)
+
+
+def test_authenticated_apply_is_idempotent_and_replay_survives_restart(tmp_path):
+    now=int(datetime(2026,8,31,tzinfo=timezone.utc).timestamp());signer,verifier=identity(tmp_path,now);body=source_document();consumer=SourceConfigConsumer(tmp_path/"state.sqlite",clock=lambda:now);endpoint=SourceConfigEndpoint(consumer,verifier)
+    token=signer.mint("yovision-brain",("source-config:write",),"POST","/machine/v1/source-config",body)
+    result=endpoint.receive("Bearer "+token,body,"corr-request-0001");assert result.state=="applied" and result.config.rules is not None
+    with pytest.raises(ValueError,match="machine_token_replayed"):endpoint.receive("Bearer "+token,body,"corr-request-0001")
+    restarted=SourceConfigEndpoint(SourceConfigConsumer(tmp_path/"state.sqlite",clock=lambda:now),Verifier(verifier._registry,SQLiteReplayStore(tmp_path/"replay.sqlite"),clock=lambda:now))
+    with pytest.raises(ValueError,match="machine_token_replayed"):restarted.receive("Bearer "+token,body,"corr-request-0002")
+    new_token=signer.mint("yovision-brain",("source-config:write",),"POST","/machine/v1/source-config",body);assert restarted.receive("Bearer "+new_token,body,"corr-request-0003").state=="idempotent"
+
+
+def test_atomic_replay_accepts_once_under_concurrency(tmp_path):
+    store=SQLiteReplayStore(tmp_path/"atomic.sqlite");results=[]
+    threads=[threading.Thread(target=lambda:results.append(store.consume("yv:sense:east","token-id",200,100))) for _ in range(12)]
+    for thread in threads:thread.start()
+    for thread in threads:thread.join()
+    assert results.count(True)==1
+
+
+def test_stale_unknown_profile_and_recalibration_are_safe(tmp_path):
+    now=int(datetime(2026,8,31,tzinfo=timezone.utc).timestamp());consumer=SourceConfigConsumer(tmp_path/"state.sqlite",clock=lambda:now)
+    assert consumer.apply(source_document(2)).config.rules is not None
+    with pytest.raises(SourceConfigError,match="STALE_REVISION"):consumer.apply(source_document(1))
+    invalid=json.loads(source_document(3));invalid["profile"]["width"]=1280;invalid["integrity"]["value"]="0"*64
+    with pytest.raises(SourceConfigError,match="CONFIG_INVALID"):consumer.apply(json.dumps(invalid).encode())
+    unknown=json.loads(source_document(3));unknown["schema_version"]="yovision.source-config/v2"
+    with pytest.raises(SourceConfigError,match="UNSUPPORTED_SCHEMA_VERSION"):consumer.apply(json.dumps(unknown).encode())
+    safe=consumer.apply(source_document(3,state="recalibration_required"));assert safe.config.rule_state=="recalibration_required" and safe.config.rules is None
+
+
+def test_future_effective_snapshot_activates_atomically_after_restart(tmp_path):
+    base=int(datetime(2026,8,31,tzinfo=timezone.utc).timestamp());current=[base];path=tmp_path/"state.sqlite";consumer=SourceConfigConsumer(path,clock=lambda:current[0])
+    assert consumer.apply(source_document(1)).state=="applied";scheduled=consumer.apply(source_document(2,effective=60));assert scheduled.state=="scheduled" and scheduled.config.revision==1
+    current[0]+=61;restarted=SourceConfigConsumer(path,clock=lambda:current[0]);activated=restarted.activate_due();assert activated[0].revision==2 and restarted.get_active("gate-primary").revision==2
+
+
+def test_unknown_valid_extension_namespace_is_ignored(tmp_path):
+    now=int(datetime(2026,8,31,tzinfo=timezone.utc).timestamp());consumer=SourceConfigConsumer(tmp_path/"state.sqlite",clock=lambda:now)
+    result=consumer.apply(with_extension(source_document(),{"vendor.example":{"feature":"safe"}}));assert result.state=="applied" and result.config.revision==1
+
+
+@pytest.mark.parametrize("extensions", [[], {"1invalid":{}}, {"vendor_ok":{}}, {"vendor.example":"not-an-object"}])
+def test_invalid_extensions_are_rejected(tmp_path, extensions):
+    now=int(datetime(2026,8,31,tzinfo=timezone.utc).timestamp());consumer=SourceConfigConsumer(tmp_path/"state.sqlite",clock=lambda:now)
+    with pytest.raises(SourceConfigError,match="CONFIG_INVALID"):consumer.apply(with_extension(source_document(),extensions))
+
+
+def test_status_sequence_restart_retry_timeout_and_disable(tmp_path):
+    path=tmp_path/"status.sqlite";publisher=RuntimeStatusPublisher(path,"brain-east-01");health={"overall":"healthy","error_codes":[],"metrics":{"load_percent":1.0,"queue_depth":0,"latency_ms":2.0}}
+    one=json.loads(publisher.build(runtime_state="running",runtime_version="1.0.0",started_at=datetime.now(timezone.utc),model_ref="people-detection",model_version="1",configurations=[],health=health,inputs=[]));two=json.loads(RuntimeStatusPublisher(path,"brain-east-01").build(runtime_state="running",runtime_version="1.0.0",started_at=None,model_ref="people-detection",model_version="1",configurations=[],health=health,inputs=[]));assert (one["sequence"],two["sequence"])==(0,1)
+    private=Ed25519PrivateKey.generate();signer=Signer("yv:brain:east","brain-key-01",private,clock=lambda:1_787_000_000);attempts=[]
+    def send(_auth,_body,_corr,timeout):attempts.append(timeout);raise TimeoutError
+    sender=StatusSender(signer,send,max_attempts=3,sleeper=lambda _:None)
+    with pytest.raises(RuntimeError,match="STATUS_DELIVERY_EXHAUSTED"):sender.publish(b"{}","corr-request-0001")
+    assert attempts==[5.0,5.0,5.0]
+    disabled=StatusSender(signer,lambda *_:ConnectorResponse(204,b"","corr-request-0001"),enabled=False)
+    with pytest.raises(RuntimeError,match="CONNECTOR_DISABLED"):disabled.publish(b"{}","corr-request-0001")
+
+
+@pytest.mark.parametrize("request_id", ["short", "0123456789abcde\n", "0123456789abcde!", "a"*129])
+def test_connector_rejects_unsafe_request_ids(tmp_path, request_id):
+    now=int(datetime(2026,8,31,tzinfo=timezone.utc).timestamp());signer,verifier=identity(tmp_path,now);body=source_document();endpoint=SourceConfigEndpoint(SourceConfigConsumer(tmp_path/"state.sqlite",clock=lambda:now),verifier)
+    token=signer.mint("yovision-brain",("source-config:write",),"POST","/machine/v1/source-config",body)
+    with pytest.raises(ValueError,match="INVALID_CORRELATION_ID"):endpoint.receive("Bearer "+token,body,request_id)
+    status_signer=Signer("yv:brain:east","brain-key-01",Ed25519PrivateKey.generate(),clock=lambda:now)
+    sender=StatusSender(status_signer,lambda *_:ConnectorResponse(204,b"",request_id))
+    with pytest.raises(ValueError,match="INVALID_CORRELATION_ID"):sender.publish(b"{}",request_id)

Sense/server/app/sense/integration/bell_connector/client.go

@@ -0,0 +1,187 @@
+package bell_connector
+
+import (
+	"bytes"
+	"context"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"math"
+	"net/http"
+	"net/url"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/machine_identity"
+)
+
+type HTTPDoer interface {
+	Do(*http.Request) (*http.Response, error)
+}
+
+var requestIDPattern = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9._:-]{15,127}$`)
+
+type Client struct {
+	Endpoint        string
+	RelayID         string
+	Signer          machine_identity.Signer
+	HTTP            HTTPDoer
+	Enabled         bool
+	MaxRequestBytes int64
+}
+
+func NewClient(endpoint, relayID string, signer machine_identity.Signer, policy machine_identity.TransportPolicy) (*Client, error) {
+	parsed, err := url.Parse(endpoint)
+	if err != nil || parsed.Scheme != "https" || parsed.Host == "" || parsed.User != nil || parsed.Path != "" || parsed.RawQuery != "" || parsed.Fragment != "" {
+		return nil, errors.New("Bell connector endpoint must be an HTTPS origin")
+	}
+	httpClient, err := policy.HTTPClient()
+	if err != nil {
+		return nil, err
+	}
+	return &Client{Endpoint: strings.TrimRight(endpoint, "/"), RelayID: relayID, Signer: signer, HTTP: httpClient, Enabled: true, MaxRequestBytes: policy.MaxRequestBytes}, nil
+}
+
+func (c Client) Send(ctx context.Context, body []byte) (IngestResult, error) {
+	if !c.Enabled {
+		return IngestResult{}, &DeliveryError{Code: "connector_disabled", Detail: "Bell connector is disabled", Terminal: true}
+	}
+	if c.HTTP == nil || !json.Valid(body) || (strings.TrimSpace(c.RelayID) != "" && !safeIdentifier(c.RelayID)) {
+		return IngestResult{}, errors.New("Bell connector is not configured")
+	}
+	maximum := c.MaxRequestBytes
+	if maximum == 0 {
+		maximum = MaxInboundBytes
+	}
+	if maximum < 1 || int64(len(body)) > maximum {
+		return IngestResult{}, &DeliveryError{Code: "event_request_too_large", Detail: "event exceeds the configured request limit", Terminal: true}
+	}
+	requestID, err := newRequestID()
+	if err != nil {
+		return IngestResult{}, fmt.Errorf("generate request correlation id: %w", err)
+	}
+	token, err := c.Signer.Mint("yovision-bell", []string{"events:ingest"}, http.MethodPost, "/v1/events", body)
+	if err != nil {
+		return IngestResult{}, fmt.Errorf("mint Bell machine token: %w", err)
+	}
+	request, err := http.NewRequestWithContext(ctx, http.MethodPost, strings.TrimRight(c.Endpoint, "/")+"/v1/events", bytes.NewReader(body))
+	if err != nil {
+		return IngestResult{}, err
+	}
+	request.Header.Set("Authorization", "Bearer "+token)
+	request.Header.Set("Content-Type", "application/json")
+	request.Header.Set("X-Request-ID", requestID)
+	if strings.TrimSpace(c.RelayID) != "" {
+		request.Header.Set("X-YoVision-Relay-ID", c.RelayID)
+	}
+	response, err := c.HTTP.Do(request)
+	if err != nil {
+		return IngestResult{}, fmt.Errorf("deliver event to Bell: %w", err)
+	}
+	defer response.Body.Close()
+	responseBody, err := io.ReadAll(io.LimitReader(response.Body, 64*1024+1))
+	if err != nil || len(responseBody) > 64*1024 {
+		return IngestResult{}, errors.New("Bell response is invalid")
+	}
+	if response.StatusCode == http.StatusCreated || response.StatusCode == http.StatusOK {
+		if response.Header.Get("X-Request-ID") != requestID {
+			return IngestResult{}, errors.New("Bell response request id is invalid")
+		}
+		var result IngestResult
+		if json.Unmarshal(responseBody, &result) != nil || result.EventID == "" || result.PayloadSHA256 == "" || (result.Disposition != "created" && result.Disposition != "duplicate") {
+			return IngestResult{}, errors.New("Bell response is invalid")
+		}
+		identity, parseErr := parseEventIdentity(body)
+		if parseErr != nil || result.ProducerID != identity.ProducerID || result.SourceEventID != identity.SourceEventID {
+			return IngestResult{}, errors.New("Bell response changed event identity")
+		}
+		canonical, canonicalErr := canonicalPayload(body)
+		if canonicalErr != nil {
+			return IngestResult{}, errors.New("delivered event cannot be canonicalized")
+		}
+		digest := sha256.Sum256(canonical)
+		if result.PayloadSHA256 != hex.EncodeToString(digest[:]) {
+			return IngestResult{}, errors.New("Bell response payload digest does not match the delivered event")
+		}
+		return result, nil
+	}
+	var problem Problem
+	_ = json.Unmarshal(responseBody, &problem)
+	terminal := response.StatusCode >= 400 && response.StatusCode < 500 && response.StatusCode != http.StatusTooManyRequests
+	if problem.Code == "" {
+		problem.Code = "bell_unavailable"
+	}
+	return IngestResult{}, &DeliveryError{Code: problem.Code, Detail: problem.Message, Terminal: terminal}
+}
+
+func newRequestID() (string, error) {
+	raw := make([]byte, 16)
+	if _, err := rand.Read(raw); err != nil {
+		return "", err
+	}
+	value := base64.RawURLEncoding.EncodeToString(raw)
+	if !requestIDPattern.MatchString(value) {
+		return "", errors.New("generated request id is invalid")
+	}
+	return value, nil
+}
+
+func canonicalPayload(raw []byte) ([]byte, error) {
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.UseNumber()
+	var value any
+	if err := decoder.Decode(&value); err != nil {
+		return nil, err
+	}
+	value, err := normalizeJCSNumbers(value)
+	if err != nil {
+		return nil, err
+	}
+	var buffer bytes.Buffer
+	encoder := json.NewEncoder(&buffer)
+	encoder.SetEscapeHTML(false)
+	if err := encoder.Encode(value); err != nil {
+		return nil, err
+	}
+	canonical := bytes.TrimSuffix(buffer.Bytes(), []byte("\n"))
+	canonical = bytes.ReplaceAll(canonical, []byte(`\u2028`), []byte("\u2028"))
+	canonical = bytes.ReplaceAll(canonical, []byte(`\u2029`), []byte("\u2029"))
+	return canonical, nil
+}
+
+func normalizeJCSNumbers(value any) (any, error) {
+	switch typed := value.(type) {
+	case json.Number:
+		number, err := strconv.ParseFloat(string(typed), 64)
+		if err != nil || math.IsNaN(number) || math.IsInf(number, 0) {
+			return nil, errors.New("JSON number is outside the RFC 8785 domain")
+		}
+		if number == 0 {
+			return float64(0), nil
+		}
+		return number, nil
+	case []any:
+		for index, item := range typed {
+			normalized, err := normalizeJCSNumbers(item)
+			if err != nil {
+				return nil, err
+			}
+			typed[index] = normalized
+		}
+	case map[string]any:
+		for key, item := range typed {
+			normalized, err := normalizeJCSNumbers(item)
+			if err != nil {
+				return nil, err
+			}
+			typed[key] = normalized
+		}
+	}
+	return value, nil
+}

Sense/server/app/sense/integration/bell_connector/handlers.go

@@ -0,0 +1,144 @@
+package bell_connector
+
+import (
+	"errors"
+	"io"
+	"net/http"
+	"regexp"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/machine_identity"
+)
+
+const MaxInboundBytes = 64 * 1024
+
+var inboundRequestIDPattern = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9._:-]{15,127}$`)
+
+type IngressHandler struct {
+	DB              *gorm.DB
+	Verifier        machine_identity.Verifier
+	EvidenceOwnerID string
+	Now             func() time.Time
+}
+
+func (h IngressHandler) Post(c *gin.Context) {
+	if !prepareMachineRequest(c, "/v1/events") {
+		return
+	}
+	body, err := io.ReadAll(http.MaxBytesReader(c.Writer, c.Request.Body, MaxInboundBytes))
+	if err != nil {
+		problem(c, http.StatusBadRequest, "invalid_event", "event payload is invalid or too large")
+		return
+	}
+	token, err := machine_identity.BearerToken(c.GetHeader("Authorization"))
+	if err != nil {
+		problem(c, http.StatusUnauthorized, machineCode(err), "machine identity was rejected")
+		return
+	}
+	if _, err = h.Verifier.Verify(token, "yovision-sense", "events:ingest", c.Request.Method, c.Request.URL.EscapedPath(), body); err != nil {
+		status := http.StatusUnauthorized
+		if code := machineCode(err); code == "machine_scope_denied" || code == "machine_audience_denied" {
+			status = http.StatusForbidden
+		}
+		problem(c, status, machineCode(err), "machine identity was rejected")
+		return
+	}
+	now := time.Now().UTC()
+	if h.Now != nil {
+		now = h.Now().UTC()
+	}
+	result, err := AcceptEvent(c.Request.Context(), h.DB, body, h.EvidenceOwnerID, now)
+	if errors.Is(err, ErrInboundConflict) {
+		problem(c, http.StatusConflict, "idempotency_conflict", "event identity is bound to another payload")
+		return
+	}
+	if err != nil {
+		problem(c, http.StatusBadRequest, "invalid_event", "event payload was rejected")
+		return
+	}
+	status := http.StatusAccepted
+	if result.Disposition == "duplicate" {
+		status = http.StatusOK
+	}
+	c.JSON(status, result)
+}
+
+type EvidenceHandler struct {
+	DB       *gorm.DB
+	Verifier machine_identity.Verifier
+	Now      func() time.Time
+}
+
+func (h EvidenceHandler) Get(c *gin.Context) {
+	path := c.Request.URL.EscapedPath()
+	if !prepareMachineRequest(c, path) || !safeIdentifier(c.Param("evidence_id")) {
+		if !c.Writer.Written() {
+			problem(c, http.StatusBadRequest, "evidence_not_found", "evidence reference is invalid")
+		}
+		return
+	}
+	token, err := machine_identity.BearerToken(c.GetHeader("Authorization"))
+	if err != nil {
+		problem(c, http.StatusUnauthorized, machineCode(err), "machine identity was rejected")
+		return
+	}
+	if _, err = h.Verifier.Verify(token, "yovision-sense", "evidence:read", c.Request.Method, path, nil); err != nil {
+		status := http.StatusUnauthorized
+		if code := machineCode(err); code == "machine_scope_denied" || code == "machine_audience_denied" {
+			status = http.StatusForbidden
+		}
+		problem(c, status, machineCode(err), "machine identity was rejected")
+		return
+	}
+	var record EvidenceRecord
+	if err = h.DB.WithContext(c.Request.Context()).First(&record, "evidence_id = ?", c.Param("evidence_id")).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			problem(c, http.StatusNotFound, "evidence_not_found", "evidence reference is unknown")
+			return
+		}
+		problem(c, http.StatusServiceUnavailable, "evidence_unavailable", "evidence metadata is temporarily unavailable")
+		return
+	}
+	now := time.Now().UTC()
+	if h.Now != nil {
+		now = h.Now().UTC()
+	}
+	if record.ExpiresAt != nil && !record.ExpiresAt.After(now) {
+		problem(c, http.StatusGone, "evidence_expired", "evidence reference has expired")
+		return
+	}
+	c.Data(http.StatusOK, "application/json", record.Payload)
+}
+
+func prepareMachineRequest(c *gin.Context, expectedPath string) bool {
+	requestID := c.GetHeader("X-Request-ID")
+	if requestID == "" {
+		requestID = uuid.NewString()
+	} else if !inboundRequestIDPattern.MatchString(requestID) {
+		problem(c, http.StatusBadRequest, "invalid_request_id", "X-Request-ID is invalid")
+		return false
+	}
+	c.Header("X-Request-ID", requestID)
+	if c.Request.URL.RawQuery != "" || c.Request.URL.Fragment != "" || c.Request.URL.EscapedPath() != expectedPath {
+		problem(c, http.StatusBadRequest, "invalid_request_target", "request target is invalid")
+		return false
+	}
+	return true
+}
+
+func machineCode(err error) string {
+	var machineErr *machine_identity.Error
+	if errors.As(err, &machineErr) {
+		return machineErr.Code
+	}
+	return "machine_token_invalid"
+}
+
+func problem(c *gin.Context, status int, code, message string) {
+	c.Header("Content-Type", "application/problem+json")
+	c.JSON(status, Problem{Code: code, Message: message})
+}

Sense/server/app/sense/integration/bell_connector/ingress.go

@@ -0,0 +1,130 @@
+package bell_connector
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+var ErrInboundConflict = errors.New("idempotency_conflict")
+
+func AcceptEvent(ctx context.Context, db *gorm.DB, payload []byte, evidenceOwnerID string, now time.Time) (AcceptResult, error) {
+	identity, err := parseEventIdentity(payload)
+	if err != nil {
+		return AcceptResult{}, err
+	}
+	canonical, err := canonicalPayload(payload)
+	if err != nil {
+		return AcceptResult{}, err
+	}
+	digestBytes := sha256.Sum256(canonical)
+	digest := hex.EncodeToString(digestBytes[:])
+	result := AcceptResult{ProducerID: identity.ProducerID, SourceEventID: identity.SourceEventID, PayloadSHA256: digest}
+	err = db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if tx.Dialector.Name() == "postgres" {
+			key := fmt.Sprintf("%d:%s:%s", len(identity.ProducerID), identity.ProducerID, identity.SourceEventID)
+			if lockErr := tx.Exec("SELECT pg_advisory_xact_lock(hashtextextended(?, 0))", key).Error; lockErr != nil {
+				return lockErr
+			}
+		}
+		var existing InboundEvent
+		lookup := tx.Clauses(clause.Locking{Strength: "UPDATE"}).Where("producer_id = ? AND source_event_id = ?", identity.ProducerID, identity.SourceEventID).First(&existing).Error
+		if lookup == nil {
+			if existing.PayloadSHA256 != digest {
+				return ErrInboundConflict
+			}
+			result.Disposition = "duplicate"
+			return nil
+		}
+		if !errors.Is(lookup, gorm.ErrRecordNotFound) {
+			return lookup
+		}
+		fact := InboundEvent{ID: uuid.NewString(), ProducerID: identity.ProducerID, SourceEventID: identity.SourceEventID, Payload: append([]byte(nil), canonical...), PayloadSHA256: digest, ReceivedAt: now.UTC()}
+		if err := tx.Create(&fact).Error; err != nil {
+			return err
+		}
+		if _, err := EnqueueEvent(tx, canonical, now); err != nil {
+			return err
+		}
+		if err := retainEvidence(tx, canonical, evidenceOwnerID, now); err != nil {
+			return err
+		}
+		result.Disposition = "accepted"
+		return nil
+	})
+	return result, err
+}
+
+func retainEvidence(tx *gorm.DB, payload []byte, ownerID string, now time.Time) error {
+	var envelope struct {
+		Evidence []json.RawMessage `json:"evidence"`
+	}
+	decoder := json.NewDecoder(bytes.NewReader(payload))
+	if err := decoder.Decode(&envelope); err != nil {
+		return err
+	}
+	for _, raw := range envelope.Evidence {
+		var metadata struct {
+			EvidenceID string `json:"evidence_id"`
+			OwnerID    string `json:"owner_id"`
+			Status     string `json:"status"`
+			ExpiresAt  string `json:"expires_at"`
+		}
+		if err := json.Unmarshal(raw, &metadata); err != nil || !safeIdentifier(metadata.EvidenceID) || !safeIdentifier(metadata.OwnerID) {
+			return errors.New("invalid evidence metadata")
+		}
+		if ownerID != "" && metadata.OwnerID != ownerID {
+			continue
+		}
+		canonical, err := canonicalPayload(raw)
+		if err != nil {
+			return err
+		}
+		var expiresAt *time.Time
+		if metadata.ExpiresAt != "" {
+			parsed, parseErr := time.Parse(time.RFC3339Nano, metadata.ExpiresAt)
+			if parseErr != nil {
+				return parseErr
+			}
+			parsed = parsed.UTC()
+			expiresAt = &parsed
+		}
+		record := EvidenceRecord{EvidenceID: metadata.EvidenceID, OwnerID: metadata.OwnerID, Status: metadata.Status, Payload: canonical, ExpiresAt: expiresAt, UpdatedAt: now.UTC()}
+		var existing EvidenceRecord
+		lookup := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&existing, "evidence_id = ?", metadata.EvidenceID).Error
+		if lookup == nil {
+			if existing.OwnerID != metadata.OwnerID || !validEvidenceTransition(existing.Status, metadata.Status) {
+				return errors.New("evidence metadata transition is invalid")
+			}
+		} else if !errors.Is(lookup, gorm.ErrRecordNotFound) {
+			return lookup
+		}
+		if err := tx.Clauses(clause.OnConflict{Columns: []clause.Column{{Name: "evidence_id"}}, DoUpdates: clause.AssignmentColumns([]string{"status", "payload", "expires_at", "updated_at"})}).Create(&record).Error; err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func validEvidenceTransition(from, to string) bool {
+	if from == to {
+		return true
+	}
+	switch from {
+	case "pending":
+		return to == "processing" || to == "success" || to == "failed"
+	case "processing":
+		return to == "success" || to == "failed"
+	default:
+		return false
+	}
+}

Sense/server/app/sense/integration/bell_connector/model.go

@@ -0,0 +1,79 @@
+package bell_connector
+
+import (
+	"encoding/json"
+	"time"
+)
+
+const OutboxType = "bell_event_v1"
+
+type eventIdentity struct {
+	SchemaVersion string `json:"schema_version"`
+	ProducerID    string `json:"producer_id"`
+	SourceEventID string `json:"source_event_id"`
+}
+
+type IngestResult struct {
+	EventID       string `json:"event_id"`
+	ProducerID    string `json:"producer_id"`
+	SourceEventID string `json:"source_event_id"`
+	Disposition   string `json:"disposition"`
+	PayloadSHA256 string `json:"payload_sha256"`
+}
+
+type Problem struct {
+	Code            string `json:"code"`
+	Message         string `json:"message"`
+	ExistingEventID string `json:"existing_event_id,omitempty"`
+}
+
+type DeliveryError struct {
+	Code       string
+	Detail     string
+	Terminal   bool
+	RetryAfter time.Duration
+}
+
+func (e *DeliveryError) Error() string { return e.Code + ": " + e.Detail }
+
+// ReplayToken is Sense-owned verification state for authenticated evidence
+// requests. It is never shared with Bell's replay table or business receipts.
+type ReplayToken struct {
+	Principal string    `gorm:"size:128;primaryKey"`
+	TokenID   string    `gorm:"size:64;primaryKey"`
+	ExpiresAt time.Time `gorm:"not null;index"`
+	CreatedAt time.Time `gorm:"not null"`
+}
+
+func (ReplayToken) TableName() string { return "sense_machine_token_replays" }
+
+// InboundEvent is the Sense-owned local fact for an event received from Brain.
+// The immutable payload and Bell Outbox row are created in one transaction.
+type InboundEvent struct {
+	ID            string          `gorm:"size:36;primaryKey"`
+	ProducerID    string          `gorm:"size:128;not null;uniqueIndex:sense_inbound_event_key"`
+	SourceEventID string          `gorm:"size:128;not null;uniqueIndex:sense_inbound_event_key"`
+	Payload       json.RawMessage `gorm:"column:payload;type:jsonb;not null"`
+	PayloadSHA256 string          `gorm:"type:char(64);not null"`
+	ReceivedAt    time.Time       `gorm:"not null"`
+}
+
+func (InboundEvent) TableName() string { return "sense_inbound_events" }
+
+type EvidenceRecord struct {
+	EvidenceID string          `gorm:"size:128;primaryKey"`
+	OwnerID    string          `gorm:"size:128;not null;index"`
+	Status     string          `gorm:"size:16;not null;index"`
+	Payload    json.RawMessage `gorm:"column:payload;type:jsonb;not null"`
+	ExpiresAt  *time.Time      `gorm:"index"`
+	UpdatedAt  time.Time       `gorm:"not null"`
+}
+
+func (EvidenceRecord) TableName() string { return "sense_evidence_metadata" }
+
+type AcceptResult struct {
+	ProducerID    string `json:"producer_id"`
+	SourceEventID string `json:"source_event_id"`
+	Disposition   string `json:"disposition"`
+	PayloadSHA256 string `json:"payload_sha256"`
+}

Sense/server/app/sense/integration/bell_connector/outbox.go

@@ -0,0 +1,166 @@
+package bell_connector
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/outbox"
+)
+
+func EnqueueEvent(tx *gorm.DB, payload []byte, now time.Time) (outbox.Message, error) {
+	identity, err := parseEventIdentity(payload)
+	if err != nil {
+		return outbox.Message{}, err
+	}
+	keyDigest := sha256.Sum256([]byte(identity.ProducerID + "\x00" + identity.SourceEventID))
+	return outbox.Enqueue(tx, outbox.EnqueueInput{
+		InternalType:   OutboxType,
+		BusinessRef:    identity.SourceEventID,
+		IdempotencyKey: "bell-event-v1:" + hex.EncodeToString(keyDigest[:]),
+		PayloadJSON:    append([]byte(nil), payload...),
+	}, now)
+}
+
+func parseEventIdentity(payload []byte) (eventIdentity, error) {
+	decoder := json.NewDecoder(bytes.NewReader(payload))
+	var identity eventIdentity
+	if err := decoder.Decode(&identity); err != nil || !json.Valid(payload) || identity.SchemaVersion != "yovision.event/v1" ||
+		!safeIdentifier(identity.ProducerID) || !safeIdentifier(identity.SourceEventID) {
+		return eventIdentity{}, errors.New("invalid yovision.event/v1 payload")
+	}
+	return identity, nil
+}
+
+func safeIdentifier(value string) bool {
+	if value == "" || len(value) > 128 || strings.ContainsAny(value, "\\/@\x00\r\n") {
+		return false
+	}
+	for index, r := range value {
+		allowed := r >= 'A' && r <= 'Z' || r >= 'a' && r <= 'z' || r >= '0' && r <= '9' || (index > 0 && strings.ContainsRune("._:-", r))
+		if !allowed {
+			return false
+		}
+	}
+	return true
+}
+
+type Relay struct {
+	DB      *gorm.DB
+	Client  *Client
+	Now     func() time.Time
+	Backoff func(int) time.Duration
+}
+
+func (r Relay) DeliverBatch(ctx context.Context, worker string, limit int) (int, error) {
+	if r.DB == nil || r.Client == nil || strings.TrimSpace(worker) == "" || limit < 1 || limit > 100 {
+		return 0, errors.New("invalid Bell relay configuration")
+	}
+	items, err := r.claim(worker, limit)
+	if err != nil {
+		return 0, err
+	}
+	delivered := 0
+	queueRelay := outbox.NewRelay(r.DB)
+	queueRelay.Now = r.now
+	if r.Backoff != nil {
+		queueRelay.Backoff = r.Backoff
+	}
+	for _, item := range items {
+		_, deliveryErr := r.Client.Send(ctx, []byte(item.PayloadJSON))
+		if deliveryErr == nil {
+			if err = queueRelay.MarkSuccess(item.ID, worker); err != nil {
+				return delivered, err
+			}
+			delivered++
+			continue
+		}
+		var classified *DeliveryError
+		if errors.As(deliveryErr, &classified) && classified.Terminal {
+			if err = r.markTerminal(item, worker, classified.Code); err != nil {
+				return delivered, err
+			}
+			continue
+		}
+		if err = queueRelay.MarkFailure(item.ID, worker, deliveryErr.Error()); err != nil {
+			return delivered, err
+		}
+	}
+	return delivered, nil
+}
+
+func (r Relay) claim(worker string, limit int) ([]outbox.Message, error) {
+	now := r.now()
+	leaseUntil := now.Add(30 * time.Second)
+	claimed := make([]outbox.Message, 0, limit)
+	err := r.DB.Transaction(func(tx *gorm.DB) error {
+		var candidates []outbox.Message
+		query := tx.Where("internal_type = ? AND (((state IN ?) AND available_at <= ?) OR (state = ? AND lease_until < ?))", OutboxType, []string{outbox.StatePending, outbox.StateRetry}, now, outbox.StateProcessing, now).Order("available_at, created_at").Limit(limit)
+		if tx.Dialector.Name() == "postgres" {
+			query = query.Clauses(clause.Locking{Strength: "UPDATE", Options: "SKIP LOCKED"})
+		}
+		if err := query.Find(&candidates).Error; err != nil {
+			return err
+		}
+		for _, item := range candidates {
+			result := tx.Model(&outbox.Message{}).Where("id = ? AND version = ?", item.ID, item.Version).Updates(map[string]any{"state": outbox.StateProcessing, "lease_owner": worker, "lease_until": leaseUntil, "version": gorm.Expr("version + 1"), "updated_at": now})
+			if result.Error != nil {
+				return result.Error
+			}
+			if result.RowsAffected == 1 {
+				item.State, item.LeaseOwner, item.LeaseUntil, item.Version = outbox.StateProcessing, worker, &leaseUntil, item.Version+1
+				claimed = append(claimed, item)
+			}
+		}
+		return nil
+	})
+	return claimed, err
+}
+
+func (r Relay) markTerminal(item outbox.Message, worker, detail string) error {
+	now := r.now()
+	return r.DB.Transaction(func(tx *gorm.DB) error {
+		result := tx.Model(&outbox.Message{}).Where("id = ? AND state = ? AND lease_owner = ?", item.ID, outbox.StateProcessing, worker).Updates(map[string]any{
+			"state": outbox.StateDead, "attempt_count": gorm.Expr("attempt_count + 1"), "last_error": detail,
+			"lease_owner": "", "lease_until": nil, "version": gorm.Expr("version + 1"), "updated_at": now,
+		})
+		if result.Error != nil || result.RowsAffected != 1 {
+			if result.Error != nil {
+				return result.Error
+			}
+			return errors.New("Bell outbox lease lost")
+		}
+		return tx.Create(&outbox.Attempt{MessageID: item.ID, Number: item.AttemptCount + 1, Outcome: outbox.StateDead, Detail: detail, Worker: worker, CreatedAt: now}).Error
+	})
+}
+
+func (r Relay) now() time.Time {
+	if r.Now != nil {
+		return r.Now().UTC()
+	}
+	return time.Now().UTC()
+}
+
+func PreserveIdentity(before, after []byte) error {
+	left, err := parseEventIdentity(before)
+	if err != nil {
+		return err
+	}
+	right, err := parseEventIdentity(after)
+	if err != nil {
+		return err
+	}
+	if left.ProducerID != right.ProducerID || left.SourceEventID != right.SourceEventID {
+		return fmt.Errorf("relay changed original event identity")
+	}
+	return nil
+}

Sense/server/app/sense/integration/bell_connector/replay.go

@@ -0,0 +1,29 @@
+package bell_connector
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+type PersistentReplayStore struct{ DB *gorm.DB }
+
+func (s PersistentReplayStore) Consume(principal, tokenID string, expiresAt, now time.Time) bool {
+	if s.DB == nil {
+		return false
+	}
+	accepted := false
+	err := s.DB.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Where("expires_at <= ?", now.UTC()).Delete(&ReplayToken{}).Error; err != nil {
+			return err
+		}
+		result := tx.Clauses(clause.OnConflict{DoNothing: true}).Create(&ReplayToken{Principal: principal, TokenID: tokenID, ExpiresAt: expiresAt.UTC(), CreatedAt: now.UTC()})
+		if result.Error != nil {
+			return result.Error
+		}
+		accepted = result.RowsAffected == 1
+		return nil
+	})
+	return err == nil && accepted
+}

Sense/server/app/sense/integration/bell_connector/runtime.go

@@ -0,0 +1,89 @@
+package bell_connector
+
+import (
+	"context"
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/machine_identity"
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/outbox"
+)
+
+type Environment func(string) string
+
+func StartRuntime(ctx context.Context, engine *gin.Engine, db *gorm.DB, getenv Environment) error {
+	if getenv == nil {
+		getenv = os.Getenv
+	}
+	ingressEnabled := enabled(getenv("SENSE_EVENT_INGRESS_ENABLED"))
+	relayEnabled := enabled(getenv("SENSE_BELL_CONNECTOR_ENABLED"))
+	if !ingressEnabled && !relayEnabled {
+		return nil
+	}
+	if engine == nil || db == nil {
+		return errors.New("Sense connector runtime requires engine and database")
+	}
+	for _, model := range []any{&InboundEvent{}, &EvidenceRecord{}, &ReplayToken{}, &outbox.Message{}, &outbox.DeliveryRecord{}, &outbox.Attempt{}} {
+		if !db.Migrator().HasTable(model) {
+			return fmt.Errorf("Sense connector migration is not applied for %T", model)
+		}
+	}
+	if ingressEnabled {
+		registry, err := machine_identity.LoadRegistry(getenv("SENSE_MACHINE_PRINCIPAL_REGISTRY"), "yovision-sense")
+		if err != nil {
+			return fmt.Errorf("load Sense machine identity registry: %w", err)
+		}
+		verifier := machine_identity.Verifier{Registry: registry, Replay: PersistentReplayStore{DB: db}}
+		engine.POST("/v1/events", (IngressHandler{DB: db, Verifier: verifier, EvidenceOwnerID: strings.TrimSpace(getenv("SENSE_EVIDENCE_OWNER_ID"))}).Post)
+		engine.GET("/v1/evidence/:evidence_id", (EvidenceHandler{DB: db, Verifier: verifier}).Get)
+	}
+	if !relayEnabled {
+		return nil
+	}
+	privateKey, err := machine_identity.LoadPrivateKey(getenv("SENSE_BELL_PRIVATE_KEY_PATH"))
+	if err != nil {
+		return err
+	}
+	signer := machine_identity.Signer{Principal: strings.TrimSpace(getenv("SENSE_BELL_PRINCIPAL_ID")), KeyID: strings.TrimSpace(getenv("SENSE_BELL_KEY_ID")), PrivateKey: privateKey}
+	policy := machine_identity.TransportPolicy{TLSMinVersion: tls.VersionTLS12, VerifyCertificate: true, VerifyHostname: true, ConnectTimeout: 5 * time.Second, ResponseHeaderTimeout: 10 * time.Second, RequestTimeout: 15 * time.Second, MaxRequestBytes: MaxInboundBytes}
+	client, err := NewClient(strings.TrimSpace(getenv("SENSE_BELL_ENDPOINT")), strings.TrimSpace(getenv("SENSE_RELAY_ID")), signer, policy)
+	if err != nil {
+		return err
+	}
+	interval := 2 * time.Second
+	if raw := strings.TrimSpace(getenv("SENSE_BELL_RELAY_INTERVAL_MS")); raw != "" {
+		milliseconds, parseErr := strconv.Atoi(raw)
+		if parseErr != nil || milliseconds < 100 || milliseconds > 60000 {
+			return errors.New("SENSE_BELL_RELAY_INTERVAL_MS must be between 100 and 60000")
+		}
+		interval = time.Duration(milliseconds) * time.Millisecond
+	}
+	go runRelay(ctx, Relay{DB: db, Client: client}, interval)
+	return nil
+}
+
+func runRelay(ctx context.Context, relay Relay, interval time.Duration) {
+	ticker := time.NewTicker(interval)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C:
+			if _, err := relay.DeliverBatch(ctx, "sense-bell-runtime", 50); err != nil && ctx.Err() == nil {
+				log.Printf("Sense Bell connector delivery failed: %v", err)
+			}
+		}
+	}
+}
+
+func enabled(value string) bool { return strings.EqualFold(strings.TrimSpace(value), "true") }

Sense/server/app/sense/integration/brain_control/connector.go

@@ -0,0 +1,118 @@
+package brain_control
+
+import (
+	"errors"
+	"fmt"
+	"regexp"
+	"time"
+
+	mi "git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/machine_identity"
+)
+
+const (
+	sourceConfigPath  = "/machine/v1/source-config"
+	runtimeStatusPath = "/machine/v1/runtime-status"
+)
+
+var requestIDPattern = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9._:-]{15,127}$`)
+
+type SendResponse struct {
+	StatusCode    int
+	Body          []byte
+	CorrelationID string
+}
+type SendFunc func(authorization string, body []byte, correlationID string, timeout time.Duration) (SendResponse, error)
+
+type ConfigSender struct {
+	Signer      mi.Signer
+	Send        SendFunc
+	Enabled     bool
+	Timeout     time.Duration
+	MaxAttempts int
+	Sleep       func(time.Duration)
+}
+
+func (s ConfigSender) Publish(config SourceConfig, correlationID string) (SendResponse, error) {
+	if !s.Enabled {
+		return SendResponse{}, errors.New("CONNECTOR_DISABLED")
+	}
+	if s.Send == nil || !requestIDPattern.MatchString(correlationID) {
+		return SendResponse{}, errors.New("invalid connector configuration")
+	}
+	if s.Timeout <= 0 {
+		s.Timeout = 5 * time.Second
+	}
+	if s.MaxAttempts == 0 {
+		s.MaxAttempts = 4
+	}
+	if s.MaxAttempts < 1 {
+		return SendResponse{}, errors.New("invalid connector retry policy")
+	}
+	if s.Sleep == nil {
+		s.Sleep = time.Sleep
+	}
+	if err := ValidateSourceConfig(config); err != nil {
+		return SendResponse{}, err
+	}
+	body, err := MarshalSourceConfig(config)
+	if err != nil {
+		return SendResponse{}, err
+	}
+	var last error
+	for attempt := 0; attempt < s.MaxAttempts; attempt++ {
+		token, mintErr := s.Signer.Mint("yovision-brain", []string{"source-config:write"}, "POST", sourceConfigPath, body)
+		if mintErr != nil {
+			return SendResponse{}, mintErr
+		}
+		response, sendErr := s.Send("Bearer "+token, body, correlationID, s.Timeout)
+		if sendErr == nil && response.StatusCode >= 200 && response.StatusCode < 300 {
+			return response, nil
+		}
+		if sendErr == nil && response.StatusCode < 500 {
+			return SendResponse{}, fmt.Errorf("source config rejected: %d", response.StatusCode)
+		}
+		if sendErr != nil {
+			last = sendErr
+		} else {
+			last = fmt.Errorf("source config remote status: %d", response.StatusCode)
+		}
+		if attempt+1 < s.MaxAttempts {
+			delay := time.Second << attempt
+			if delay > 30*time.Second {
+				delay = 30 * time.Second
+			}
+			s.Sleep(delay)
+		}
+	}
+	return SendResponse{}, fmt.Errorf("source config delivery exhausted: %w", last)
+}
+
+type RuntimeStatusEndpoint struct {
+	Verifier     mi.Verifier
+	Store        ProjectionStore
+	Enabled      bool
+	MaxBodyBytes int
+}
+
+func (e RuntimeStatusEndpoint) Receive(authorization string, body []byte, correlationID string, expected map[string]int64) (ProjectionView, error) {
+	if !e.Enabled {
+		return ProjectionView{}, errors.New("CONNECTOR_DISABLED")
+	}
+	if !requestIDPattern.MatchString(correlationID) {
+		return ProjectionView{}, errors.New("INVALID_CORRELATION_ID")
+	}
+	if e.MaxBodyBytes == 0 {
+		e.MaxBodyBytes = 10 * 1024 * 1024
+	}
+	if len(body) > e.MaxBodyBytes {
+		return ProjectionView{}, errors.New("REQUEST_TOO_LARGE")
+	}
+	token, err := mi.BearerToken(authorization)
+	if err != nil {
+		return ProjectionView{}, err
+	}
+	if _, err = e.Verifier.Verify(token, "yovision-sense", "runtime-status:write", "POST", runtimeStatusPath, body); err != nil {
+		return ProjectionView{}, err
+	}
+	return e.Store.Ingest(body, expected)
+}

Sense/server/app/sense/integration/brain_control/connector_test.go

@@ -0,0 +1,124 @@
+package brain_control
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"encoding/json"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	mi "git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/machine_identity"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+func memoryDB(t *testing.T, name string) *gorm.DB {
+	t.Helper()
+	db, err := gorm.Open(sqlite.Open("file:"+name+"?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&ReplayToken{}, &RuntimeProjection{}, &SourceRevision{}); err != nil {
+		t.Fatal(err)
+	}
+	return db
+}
+
+func TestSourceMapperAndRecalibration(t *testing.T) {
+	now := time.Date(2026, 8, 31, 0, 0, 0, 0, time.UTC)
+	facts := SourceFacts{ConfigID: "gate-primary", SiteID: "site-east", LogicalDeviceID: "camera-1", MediaPath: "site/camera/main", Revision: 1, PublishedAt: now, EffectiveAt: now, Profile: Profile{ID: "main", Width: 1920, Height: 1080, Encoding: "h264", FrameRate: 25}, RuleSetVersion: "rules-1", Areas: []AreaRule{{ID: "danger", Version: 1, Kind: "danger_area", Enabled: true, Points: []Point{{.1, .1}, {.8, .1}, {.5, .8}}}}}
+	config, err := MapSourceConfig(facts)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = ValidateSourceConfig(config); err != nil {
+		t.Fatal(err)
+	}
+	facts.Revision = 2
+	facts.NeedsRecalibration = true
+	config, err = MapSourceConfig(facts)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if config.RuleSet.State != "recalibration_required" || config.RuleSet.Areas[0].Enabled {
+		t.Fatal("recalibration did not disable rules")
+	}
+}
+
+func TestReplayAtomicAndRestart(t *testing.T) {
+	db := memoryDB(t, "replay-package")
+	pub, priv, _ := ed25519.GenerateKey(rand.Reader)
+	now := time.Date(2026, 8, 31, 0, 0, 0, 0, time.UTC)
+	registry, _ := mi.NewRegistry(mi.KeyRecord{Principal: "yv:brain:east", KeyID: "brain-key-01", PublicKey: pub, Audience: "yovision-sense", Scopes: []string{"runtime-status:write"}, Enabled: true})
+	signer := mi.Signer{Principal: "yv:brain:east", KeyID: "brain-key-01", PrivateKey: priv, Now: func() time.Time { return now }}
+	body := []byte("{}")
+	token, _ := signer.Mint("yovision-sense", []string{"runtime-status:write"}, "POST", "/machine/v1/runtime-status", body)
+	accepted := 0
+	var mu sync.Mutex
+	var wg sync.WaitGroup
+	for range 8 {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			v := mi.Verifier{Registry: registry, Replay: GORMReplayStore{DB: db}, Now: func() time.Time { return now }}
+			if _, err := v.Verify(token, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); err == nil {
+				mu.Lock()
+				accepted++
+				mu.Unlock()
+			}
+		}()
+	}
+	wg.Wait()
+	if accepted != 1 {
+		t.Fatalf("accepted %d", accepted)
+	}
+	v := mi.Verifier{Registry: registry, Replay: GORMReplayStore{DB: db}, Now: func() time.Time { return now }}
+	if _, err := v.Verify(token, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); err == nil {
+		t.Fatal("restart replay accepted")
+	}
+}
+
+func TestProjectionStaleRecoveryAndMismatch(t *testing.T) {
+	db := memoryDB(t, "projection-package")
+	now := time.Date(2026, 8, 31, 0, 0, 0, 0, time.UTC)
+	store := ProjectionStore{DB: db, Clock: func() time.Time { return now }, StaleAfter: 90 * time.Second}
+	raw := runtimeFixture("018f4d6a-8d1b-4a25-8b37-9085f9c0d101", 1, now, 2)
+	view, err := store.Ingest(raw, map[string]int64{"gate": 3})
+	if err != nil || !view.RevisionMismatch {
+		t.Fatalf("view %+v err %v", view, err)
+	}
+	now = now.Add(91 * time.Second)
+	view, _ = store.View("brain-east-01")
+	if !view.Offline {
+		t.Fatal("not offline")
+	}
+	raw = runtimeFixture("018f4d6a-8d1b-4a25-8b37-9085f9c0d102", 2, now, 3)
+	view, err = store.Ingest(raw, map[string]int64{"gate": 3})
+	if err != nil || !view.Recovered {
+		t.Fatalf("recovery %+v err %v", view, err)
+	}
+}
+
+func TestConnectorRejectsUnsafeRequestIDs(t *testing.T) {
+	for _, value := range []string{"short", "0123456789abcde\n", "0123456789abcde!", strings.Repeat("a", 129)} {
+		sender := ConfigSender{Enabled: true, Send: func(string, []byte, string, time.Duration) (SendResponse, error) {
+			t.Fatal("unsafe request id reached transport")
+			return SendResponse{}, nil
+		}}
+		if _, err := sender.Publish(SourceConfig{}, value); err == nil {
+			t.Fatalf("sender accepted request id %q", value)
+		}
+		endpoint := RuntimeStatusEndpoint{Enabled: true}
+		if _, err := endpoint.Receive("Bearer ignored", nil, value, nil); err == nil || err.Error() != "INVALID_CORRELATION_ID" {
+			t.Fatalf("endpoint accepted request id %q: %v", value, err)
+		}
+	}
+}
+
+func runtimeFixture(id string, seq int64, observed time.Time, revision int64) []byte {
+	value := map[string]any{"schema_version": RuntimeStatusVersion, "status_id": id, "brain_instance_ref": "brain-east-01", "sequence": seq, "observed_at": observed.Format(time.RFC3339), "runtime": map[string]any{"state": "running", "version": "1.0.0", "started_at": observed.Format(time.RFC3339)}, "model": map[string]any{"model_ref": "people", "version": "1"}, "configurations": []any{map[string]any{"config_id": "gate", "apply_state": "applied", "applied_revision": revision, "error_code": nil}}, "health": map[string]any{"overall": "healthy", "error_codes": []any{}, "metrics": map[string]any{"load_percent": 1.0, "queue_depth": 0, "latency_ms": 1.0}}, "inputs": []any{}}
+	raw, _ := json.Marshal(value)
+	return raw
+}

Sense/server/app/sense/integration/brain_control/mapper.go

@@ -0,0 +1,135 @@
+package brain_control
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"regexp"
+	"strings"
+	"time"
+)
+
+var stableID = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9._~-]{0,127}$`)
+
+func MapSourceConfig(f SourceFacts) (SourceConfig, error) {
+	if !stableID.MatchString(f.ConfigID) || !stableID.MatchString(f.SiteID) || !stableID.MatchString(f.LogicalDeviceID) || !stableID.MatchString(f.Profile.ID) || f.Revision < 1 || f.Profile.Width < 1 || f.Profile.Height < 1 || f.Profile.FrameRate <= 0 {
+		return SourceConfig{}, errors.New("invalid source configuration facts")
+	}
+	encoding := strings.ToUpper(f.Profile.Encoding)
+	if encoding != "H264" && encoding != "H265" && encoding != "MJPEG" {
+		return SourceConfig{}, errors.New("unsupported profile encoding")
+	}
+	if f.PublishedAt.IsZero() || f.EffectiveAt.Before(f.PublishedAt) {
+		return SourceConfig{}, errors.New("invalid source configuration time")
+	}
+	if !stableID.MatchString(f.RuleSetVersion) {
+		return SourceConfig{}, errors.New("invalid rule set version")
+	}
+	if strings.ContainsAny(f.MediaPath, "?#@\\") || strings.Contains(f.MediaPath, "://") || f.MediaPath == "" {
+		return SourceConfig{}, errors.New("media path must be opaque and credential-free")
+	}
+	if len(f.Areas) > 1024 || len(f.DirectionalLines) > 1024 {
+		return SourceConfig{}, errors.New("too many rules")
+	}
+	seen := map[string]bool{}
+	for _, a := range f.Areas {
+		if !stableID.MatchString(a.ID) || seen[a.ID] || a.Version < 1 || a.Kind != "danger_area" || len(a.Points) < 3 || len(a.Points) > 256 || !validPoints(a.Points) || polygonArea(a.Points) == 0 {
+			return SourceConfig{}, errors.New("invalid area rule")
+		}
+		seen[a.ID] = true
+	}
+	for _, l := range f.DirectionalLines {
+		if !stableID.MatchString(l.ID) || seen[l.ID] || l.Version < 1 || l.Kind != "directional_line" || (l.TriggerDirection != "left_to_right" && l.TriggerDirection != "right_to_left") || !validPoints([]Point{l.Start, l.End}) || l.Start == l.End {
+			return SourceConfig{}, errors.New("invalid directional line rule")
+		}
+		seen[l.ID] = true
+	}
+	var out SourceConfig
+	out.SchemaVersion, out.ConfigID, out.Revision = SourceConfigVersion, f.ConfigID, f.Revision
+	out.PublishedAt, out.EffectiveAt = f.PublishedAt.UTC(), f.EffectiveAt.UTC()
+	out.Site.ID, out.LogicalDevice.ID = f.SiteID, f.LogicalDeviceID
+	out.Profile = f.Profile
+	out.Profile.Encoding = encoding
+	out.Media.Ref, out.Media.Transport = "media:"+strings.TrimPrefix(f.MediaPath, "/"), "rtsp"
+	out.RuleSet.Version = f.RuleSetVersion
+	out.RuleSet.State = "active"
+	if f.Disabled {
+		out.RuleSet.State = "disabled"
+	}
+	if f.NeedsRecalibration {
+		out.RuleSet.State = "recalibration_required"
+	}
+	out.RuleSet.ProfileBinding.ProfileID, out.RuleSet.ProfileBinding.Width, out.RuleSet.ProfileBinding.Height = f.Profile.ID, f.Profile.Width, f.Profile.Height
+	out.RuleSet.Areas = append([]AreaRule(nil), f.Areas...)
+	out.RuleSet.DirectionalLines = append([]DirectionalLineRule(nil), f.DirectionalLines...)
+	if out.RuleSet.State != "active" {
+		for i := range out.RuleSet.Areas {
+			out.RuleSet.Areas[i].Enabled = false
+		}
+		for i := range out.RuleSet.DirectionalLines {
+			out.RuleSet.DirectionalLines[i].Enabled = false
+		}
+	}
+	digest, err := sourceDigest(out)
+	if err != nil {
+		return SourceConfig{}, err
+	}
+	out.Integrity.Algorithm, out.Integrity.Value = "sha256", digest
+	return out, nil
+}
+
+func MarshalSourceConfig(config SourceConfig) ([]byte, error) { return json.Marshal(config) }
+
+func sourceDigest(config SourceConfig) (string, error) {
+	raw, err := json.Marshal(config)
+	if err != nil {
+		return "", err
+	}
+	var value map[string]any
+	if err = json.Unmarshal(raw, &value); err != nil {
+		return "", err
+	}
+	delete(value, "integrity")
+	canonical, err := json.Marshal(value)
+	if err != nil {
+		return "", err
+	}
+	sum := sha256.Sum256(canonical)
+	return hex.EncodeToString(sum[:]), nil
+}
+
+func validPoints(points []Point) bool {
+	for _, p := range points {
+		if p.X < 0 || p.X > 1 || p.Y < 0 || p.Y > 1 {
+			return false
+		}
+	}
+	return true
+}
+func polygonArea(p []Point) float64 {
+	var a float64
+	for i := range p {
+		n := p[(i+1)%len(p)]
+		a += p[i].X*n.Y - n.X*p[i].Y
+	}
+	if a < 0 {
+		a = -a
+	}
+	return a / 2
+}
+
+func ValidateSourceConfig(config SourceConfig) error {
+	if config.SchemaVersion != SourceConfigVersion {
+		return fmt.Errorf("unsupported source config version")
+	}
+	digest, err := sourceDigest(config)
+	if err != nil || config.Integrity.Algorithm != "sha256" || digest != config.Integrity.Value {
+		return errors.New("source config integrity mismatch")
+	}
+	_, err = MapSourceConfig(SourceFacts{ConfigID: config.ConfigID, SiteID: config.Site.ID, LogicalDeviceID: config.LogicalDevice.ID, MediaPath: strings.TrimPrefix(config.Media.Ref, "media:"), Revision: config.Revision, PublishedAt: config.PublishedAt, EffectiveAt: config.EffectiveAt, Profile: config.Profile, RuleSetVersion: config.RuleSet.Version, Disabled: config.RuleSet.State == "disabled", NeedsRecalibration: config.RuleSet.State == "recalibration_required", Areas: config.RuleSet.Areas, DirectionalLines: config.RuleSet.DirectionalLines})
+	return err
+}
+
+func UTCNow() time.Time { return time.Now().UTC() }

Sense/server/app/sense/integration/brain_control/models.go

@@ -0,0 +1,122 @@
+package brain_control
+
+import "time"
+
+const (
+	SourceConfigVersion  = "yovision.source-config/v1"
+	RuntimeStatusVersion = "yovision.runtime-status/v1"
+)
+
+type Point struct {
+	X float64 `json:"x"`
+	Y float64 `json:"y"`
+}
+type Profile struct {
+	ID        string  `json:"id"`
+	Width     int     `json:"width"`
+	Height    int     `json:"height"`
+	Encoding  string  `json:"encoding"`
+	FrameRate float64 `json:"frame_rate"`
+}
+type AreaRule struct {
+	ID      string  `json:"id"`
+	Version int64   `json:"version"`
+	Kind    string  `json:"kind"`
+	Enabled bool    `json:"enabled"`
+	Points  []Point `json:"points"`
+}
+type DirectionalLineRule struct {
+	ID               string `json:"id"`
+	Version          int64  `json:"version"`
+	Kind             string `json:"kind"`
+	Enabled          bool   `json:"enabled"`
+	Start            Point  `json:"start"`
+	End              Point  `json:"end"`
+	TriggerDirection string `json:"trigger_direction"`
+}
+
+type SourceConfig struct {
+	SchemaVersion string    `json:"schema_version"`
+	ConfigID      string    `json:"config_id"`
+	Revision      int64     `json:"revision"`
+	PublishedAt   time.Time `json:"published_at"`
+	EffectiveAt   time.Time `json:"effective_at"`
+	Site          struct {
+		ID string `json:"id"`
+	} `json:"site"`
+	LogicalDevice struct {
+		ID string `json:"id"`
+	} `json:"logical_device"`
+	Profile Profile `json:"profile"`
+	Media   struct {
+		Ref       string `json:"ref"`
+		Transport string `json:"transport"`
+	} `json:"media"`
+	RuleSet struct {
+		Version        string `json:"version"`
+		State          string `json:"state"`
+		ProfileBinding struct {
+			ProfileID string `json:"profile_id"`
+			Width     int    `json:"width"`
+			Height    int    `json:"height"`
+		} `json:"profile_binding"`
+		Areas            []AreaRule            `json:"areas"`
+		DirectionalLines []DirectionalLineRule `json:"directional_lines"`
+	} `json:"rule_set"`
+	Integrity struct {
+		Algorithm string `json:"algorithm"`
+		Value     string `json:"value"`
+	} `json:"integrity"`
+}
+
+// SourceFacts is an explicit, credential-free boundary DTO. Callers map their
+// GORM entities into it; database models are never serialized as a contract.
+type SourceFacts struct {
+	ConfigID, SiteID, LogicalDeviceID, MediaRouteID, MediaPath string
+	Revision                                                   int64
+	PublishedAt, EffectiveAt                                   time.Time
+	Profile                                                    Profile
+	RuleSetVersion                                             string
+	Disabled, NeedsRecalibration                               bool
+	Areas                                                      []AreaRule
+	DirectionalLines                                           []DirectionalLineRule
+}
+
+type ReplayToken struct {
+	Principal string    `gorm:"size:128;primaryKey"`
+	TokenID   string    `gorm:"size:96;primaryKey"`
+	ExpiresAt time.Time `gorm:"not null;index"`
+	CreatedAt time.Time `gorm:"not null"`
+}
+
+func (ReplayToken) TableName() string { return "sense_brain_runtime_replay_tokens" }
+
+type RuntimeProjection struct {
+	BrainInstanceRef      string    `gorm:"size:128;primaryKey"`
+	StatusID              string    `gorm:"size:36;not null;uniqueIndex"`
+	Sequence              int64     `gorm:"not null"`
+	ObservedAt            time.Time `gorm:"not null;index"`
+	ReceivedAt            time.Time `gorm:"not null"`
+	RuntimeState          string    `gorm:"size:32;not null"`
+	RuntimeVersion        string    `gorm:"size:64;not null"`
+	ModelRef              string    `gorm:"size:128;not null"`
+	ModelVersion          string    `gorm:"size:64;not null"`
+	HealthOverall         string    `gorm:"size:32;not null"`
+	ExpectedRevisionsJSON string    `gorm:"type:jsonb;not null"`
+	ConfigurationsJSON    string    `gorm:"type:jsonb;not null"`
+	HealthJSON            string    `gorm:"type:jsonb;not null"`
+	InputsJSON            string    `gorm:"type:jsonb;not null"`
+	WasOffline            bool      `gorm:"not null;default:false"`
+	CreatedAt             time.Time
+	UpdatedAt             time.Time
+}
+
+func (RuntimeProjection) TableName() string { return "sense_brain_runtime_projections" }
+
+type SourceRevision struct {
+	ConfigID  string `gorm:"size:128;primaryKey"`
+	Revision  int64  `gorm:"not null"`
+	UpdatedAt time.Time
+}
+
+func (SourceRevision) TableName() string { return "sense_brain_source_revisions" }

Sense/server/app/sense/integration/brain_control/runtime.go

@@ -0,0 +1,145 @@
+package brain_control
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"io"
+	"regexp"
+	"time"
+)
+
+type runtimeStatus struct {
+	SchemaVersion    string    `json:"schema_version"`
+	StatusID         string    `json:"status_id"`
+	BrainInstanceRef string    `json:"brain_instance_ref"`
+	Sequence         int64     `json:"sequence"`
+	ObservedAt       time.Time `json:"observed_at"`
+	Runtime          struct {
+		State     string     `json:"state"`
+		Version   string     `json:"version"`
+		StartedAt *time.Time `json:"started_at"`
+	} `json:"runtime"`
+	Model struct {
+		ModelRef string `json:"model_ref"`
+		Version  string `json:"version"`
+	} `json:"model"`
+	Configurations []configurationStatus `json:"configurations"`
+	Health         healthStatus          `json:"health"`
+	Inputs         []inputStatus         `json:"inputs"`
+}
+type configurationStatus struct {
+	ConfigID        string  `json:"config_id"`
+	ApplyState      string  `json:"apply_state"`
+	AppliedRevision *int64  `json:"applied_revision"`
+	ErrorCode       *string `json:"error_code"`
+}
+type metrics struct {
+	LoadPercent float64 `json:"load_percent"`
+	QueueDepth  int64   `json:"queue_depth"`
+	LatencyMS   float64 `json:"latency_ms"`
+}
+type healthStatus struct {
+	Overall    string   `json:"overall"`
+	ErrorCodes []string `json:"error_codes"`
+	Metrics    metrics  `json:"metrics"`
+}
+type inputStatus struct {
+	InputRef   string   `json:"input_ref"`
+	State      string   `json:"state"`
+	ErrorCodes []string `json:"error_codes"`
+	Metrics    metrics  `json:"metrics"`
+}
+
+var uuid4 = regexp.MustCompile(`^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$`)
+var errCode = regexp.MustCompile(`^[A-Z][A-Z0-9_]{2,63}$`)
+
+func parseRuntimeStatus(raw []byte) (runtimeStatus, error) {
+	var s runtimeStatus
+	d := json.NewDecoder(bytes.NewReader(raw))
+	d.DisallowUnknownFields()
+	if err := d.Decode(&s); err != nil {
+		return s, errors.New("CONFIG_INVALID")
+	}
+	if err := d.Decode(&struct{}{}); !errors.Is(err, io.EOF) {
+		return s, errors.New("CONFIG_INVALID")
+	}
+	if s.SchemaVersion != RuntimeStatusVersion {
+		return s, errors.New("UNSUPPORTED_SCHEMA_VERSION")
+	}
+	if !uuid4.MatchString(s.StatusID) || !stableID.MatchString(s.BrainInstanceRef) || s.Sequence < 0 || s.ObservedAt.IsZero() || !validState(s.Runtime.State) || s.Runtime.Version == "" || !stableID.MatchString(s.Model.ModelRef) || s.Model.Version == "" || len(s.Configurations) > 4096 || len(s.Inputs) > 4096 || !validHealth(s.Health) {
+		return s, errors.New("CONFIG_INVALID")
+	}
+	seen := map[string]bool{}
+	for _, c := range s.Configurations {
+		if !stableID.MatchString(c.ConfigID) || seen[c.ConfigID] || !validApply(c) {
+			return s, errors.New("CONFIG_INVALID")
+		}
+		seen[c.ConfigID] = true
+	}
+	for _, i := range s.Inputs {
+		if !stableID.MatchString(i.InputRef) || !validState(i.State) || !validMetrics(i.Metrics) || !validCodes(i.ErrorCodes, 16) {
+			return s, errors.New("CONFIG_INVALID")
+		}
+	}
+	return s, nil
+}
+func validState(v string) bool {
+	switch v {
+	case "unconfigured", "starting", "running", "degraded", "failed", "stopped":
+		return true
+	}
+	return false
+}
+func validApply(c configurationStatus) bool {
+	switch c.ApplyState {
+	case "not_configured":
+		return c.AppliedRevision == nil
+	case "applying":
+		return true
+	case "applied":
+		return c.AppliedRevision != nil && *c.AppliedRevision >= 1
+	case "rejected":
+		return c.ErrorCode != nil && errCode.MatchString(*c.ErrorCode)
+	}
+	return false
+}
+func validMetrics(m metrics) bool {
+	return m.LoadPercent >= 0 && m.LoadPercent <= 100 && m.QueueDepth >= 0 && m.LatencyMS >= 0
+}
+func validCodes(v []string, n int) bool {
+	if len(v) > n {
+		return false
+	}
+	seen := map[string]bool{}
+	for _, x := range v {
+		if seen[x] || !errCode.MatchString(x) {
+			return false
+		}
+		seen[x] = true
+	}
+	return true
+}
+func validHealth(h healthStatus) bool {
+	return (h.Overall == "healthy" || h.Overall == "degraded" || h.Overall == "unhealthy") && validCodes(h.ErrorCodes, 32) && validMetrics(h.Metrics)
+}
+func validRuntimeTransition(from, to string) bool {
+	if from == to {
+		return true
+	}
+	switch from {
+	case "unconfigured":
+		return to == "starting" || to == "stopped"
+	case "starting":
+		return to == "running" || to == "degraded" || to == "failed" || to == "stopped"
+	case "running":
+		return to == "degraded" || to == "failed" || to == "stopped"
+	case "degraded":
+		return to == "running" || to == "failed" || to == "stopped"
+	case "failed":
+		return to == "starting" || to == "stopped"
+	case "stopped":
+		return to == "starting"
+	}
+	return false
+}

Sense/server/app/sense/integration/brain_control/store.go

@@ -0,0 +1,159 @@
+package brain_control
+
+import (
+	"encoding/json"
+	"errors"
+	"time"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+type GORMReplayStore struct{ DB *gorm.DB }
+
+func (s GORMReplayStore) Consume(principal, tokenID string, expiresAt, now time.Time) bool {
+	if s.DB == nil || principal == "" || tokenID == "" || !expiresAt.After(now) {
+		return false
+	}
+	return s.DB.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Where("expires_at <= ?", now).Delete(&ReplayToken{}).Error; err != nil {
+			return err
+		}
+		result := tx.Clauses(clause.OnConflict{DoNothing: true}).Create(&ReplayToken{Principal: principal, TokenID: tokenID, ExpiresAt: expiresAt, CreatedAt: now})
+		if result.Error != nil {
+			return result.Error
+		}
+		if result.RowsAffected != 1 {
+			return errors.New("replayed")
+		}
+		return nil
+	}) == nil
+}
+
+type RevisionStore struct{ DB *gorm.DB }
+
+func (s RevisionStore) Next(configID string) (int64, error) {
+	if s.DB == nil || !stableID.MatchString(configID) {
+		return 0, errors.New("invalid revision store")
+	}
+	var next int64
+	err := s.DB.Transaction(func(tx *gorm.DB) error {
+		var row SourceRevision
+		err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).Where("config_id = ?", configID).First(&row).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			row = SourceRevision{ConfigID: configID, Revision: 1}
+			if err = tx.Create(&row).Error; err != nil {
+				return err
+			}
+			next = 1
+			return nil
+		}
+		if err != nil {
+			return err
+		}
+		row.Revision++
+		next = row.Revision
+		return tx.Save(&row).Error
+	})
+	return next, err
+}
+
+type ProjectionStore struct {
+	DB         *gorm.DB
+	Clock      func() time.Time
+	StaleAfter time.Duration
+	FutureSkew time.Duration
+}
+type ProjectionView struct {
+	Projection                                  RuntimeProjection
+	Offline, Stale, Recovered, RevisionMismatch bool
+}
+
+func (s ProjectionStore) Ingest(raw []byte, expected map[string]int64) (ProjectionView, error) {
+	if s.DB == nil {
+		return ProjectionView{}, errors.New("projection database required")
+	}
+	now := time.Now().UTC()
+	if s.Clock != nil {
+		now = s.Clock().UTC()
+	}
+	if s.StaleAfter == 0 {
+		s.StaleAfter = 90 * time.Second
+	}
+	if s.FutureSkew == 0 {
+		s.FutureSkew = 30 * time.Second
+	}
+	status, err := parseRuntimeStatus(raw)
+	if err != nil {
+		return ProjectionView{}, err
+	}
+	if status.ObservedAt.After(now.Add(s.FutureSkew)) {
+		return ProjectionView{}, errors.New("FUTURE_OBSERVATION")
+	}
+	var view ProjectionView
+	err = s.DB.Transaction(func(tx *gorm.DB) error {
+		var old RuntimeProjection
+		find := tx.Where("brain_instance_ref = ?", status.BrainInstanceRef).First(&old).Error
+		if find == nil {
+			if old.StatusID == status.StatusID {
+				view.Projection = old
+				return nil
+			}
+			if status.Sequence <= old.Sequence {
+				return errors.New("OUT_OF_ORDER_STATUS")
+			}
+			if !validRuntimeTransition(old.RuntimeState, status.Runtime.State) {
+				return errors.New("INVALID_STATUS_TRANSITION")
+			}
+		}
+		if find != nil && !errors.Is(find, gorm.ErrRecordNotFound) {
+			return find
+		}
+		expectedJSON, _ := json.Marshal(expected)
+		configs, _ := json.Marshal(status.Configurations)
+		health, _ := json.Marshal(status.Health)
+		inputs, _ := json.Marshal(status.Inputs)
+		p := RuntimeProjection{BrainInstanceRef: status.BrainInstanceRef, StatusID: status.StatusID, Sequence: status.Sequence, ObservedAt: status.ObservedAt, ReceivedAt: now, RuntimeState: status.Runtime.State, RuntimeVersion: status.Runtime.Version, ModelRef: status.Model.ModelRef, ModelVersion: status.Model.Version, HealthOverall: status.Health.Overall, ExpectedRevisionsJSON: string(expectedJSON), ConfigurationsJSON: string(configs), HealthJSON: string(health), InputsJSON: string(inputs), WasOffline: find == nil && now.Sub(old.ObservedAt) > s.StaleAfter}
+		if find == nil {
+			p.CreatedAt = old.CreatedAt
+			view.Recovered = p.WasOffline
+		}
+		if err := tx.Save(&p).Error; err != nil {
+			return err
+		}
+		view.Projection = p
+		return nil
+	})
+	if err != nil {
+		return ProjectionView{}, err
+	}
+	view.Stale = now.Sub(view.Projection.ObservedAt) > s.StaleAfter
+	view.Offline = view.Stale
+	applied := make(map[string]*int64, len(status.Configurations))
+	for _, c := range status.Configurations {
+		applied[c.ConfigID] = c.AppliedRevision
+	}
+	for configID, want := range expected {
+		got, ok := applied[configID]
+		if !ok || got == nil || *got != want {
+			view.RevisionMismatch = true
+		}
+	}
+	return view, nil
+}
+
+func (s ProjectionStore) View(instance string) (ProjectionView, error) {
+	var p RuntimeProjection
+	if err := s.DB.First(&p, "brain_instance_ref = ?", instance).Error; err != nil {
+		return ProjectionView{}, err
+	}
+	now := time.Now().UTC()
+	if s.Clock != nil {
+		now = s.Clock().UTC()
+	}
+	stale := s.StaleAfter
+	if stale == 0 {
+		stale = 90 * time.Second
+	}
+	return ProjectionView{Projection: p, Offline: now.Sub(p.ObservedAt) > stale, Stale: now.Sub(p.ObservedAt) > stale}, nil
+}

Sense/server/app/sense/integration/machine_identity/registry.go

@@ -0,0 +1,68 @@
+package machine_identity
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"io"
+	"os"
+	"strings"
+)
+
+type registryDocument struct {
+	Version    string              `json:"version"`
+	Audience   string              `json:"audience"`
+	Principals []registryPrincipal `json:"principals"`
+}
+
+type registryPrincipal struct {
+	PrincipalID string        `json:"principal_id"`
+	Enabled     bool          `json:"enabled"`
+	Keys        []registryKey `json:"keys"`
+}
+
+type registryKey struct {
+	KeyID     string   `json:"kid"`
+	PublicKey string   `json:"public_key_base64url"`
+	Status    string   `json:"status"`
+	Scopes    []string `json:"scopes"`
+}
+
+func LoadRegistry(filePath, expectedAudience string) (*Registry, error) {
+	if strings.TrimSpace(filePath) == "" || !validAudiences[expectedAudience] {
+		return nil, errors.New("machine principal registry path and audience are required")
+	}
+	raw, err := os.ReadFile(filePath)
+	if err != nil {
+		return nil, errors.New("read machine principal registry")
+	}
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.DisallowUnknownFields()
+	var document registryDocument
+	if err = decoder.Decode(&document); err != nil {
+		return nil, errors.New("invalid machine principal registry")
+	}
+	if err = decoder.Decode(&struct{}{}); !errors.Is(err, io.EOF) {
+		return nil, errors.New("invalid machine principal registry")
+	}
+	if document.Version != "yovision.machine-principal-registry/v1" || document.Audience != expectedAudience || len(document.Principals) == 0 {
+		return nil, errors.New("invalid machine principal registry")
+	}
+	records := make([]KeyRecord, 0)
+	for _, principal := range document.Principals {
+		if len(principal.Keys) == 0 {
+			return nil, errors.New("invalid machine principal registry")
+		}
+		for _, key := range principal.Keys {
+			publicKey, decodeErr := base64.RawURLEncoding.Strict().DecodeString(key.PublicKey)
+			if decodeErr != nil || len(publicKey) != ed25519.PublicKeySize || (key.Status != "active" && key.Status != "revoked") {
+				return nil, errors.New("invalid machine principal registry")
+			}
+			records = append(records, KeyRecord{Principal: principal.PrincipalID, KeyID: key.KeyID, PublicKey: ed25519.PublicKey(publicKey), Audience: document.Audience,
+				Scopes: key.Scopes, Enabled: principal.Enabled, Revoked: key.Status == "revoked"})
+		}
+	}
+	return NewRegistry(records...)
+}

Sense/server/app/sense/integration/machine_identity/token.go

@@ -0,0 +1,363 @@
+package machine_identity
+
+import (
+	"bytes"
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/hex"
+	"encoding/json"
+	"encoding/pem"
+	"errors"
+	"fmt"
+	"io"
+	"net/url"
+	"os"
+	"path"
+	"regexp"
+	"slices"
+	"strings"
+	"sync"
+	"time"
+)
+
+var (
+	principalPattern = regexp.MustCompile(`^yv:(sense|brain|bell):[a-z0-9][a-z0-9.-]{0,62}$`)
+	keyIDPattern     = regexp.MustCompile(`^[A-Za-z0-9._-]{8,64}$`)
+	tokenIDPattern   = regexp.MustCompile(`^[A-Za-z0-9_-]{22,64}$`)
+	validAudiences   = map[string]bool{"yovision-sense": true, "yovision-brain": true, "yovision-bell": true}
+	validScopes      = map[string]bool{"source-config:write": true, "runtime-status:write": true, "events:ingest": true, "evidence:read": true}
+)
+
+const (
+	Version       = "yovision.machine-identity/v1"
+	TokenType     = "YOVISION-MACHINE+JWT"
+	MaxLifetime   = 5 * time.Minute
+	AllowedSkew   = 30 * time.Second
+	MaxKeyOverlap = 24 * time.Hour
+)
+
+type Error struct{ Code string }
+
+func (e *Error) Error() string { return e.Code }
+
+func codeError(code string) error { return &Error{Code: code} }
+
+// BearerToken deliberately has no cookie or query fallback.
+func BearerToken(authorization string) (string, error) {
+	parts := strings.Split(authorization, " ")
+	if len(parts) != 2 || !strings.EqualFold(parts[0], "Bearer") || parts[1] == "" || strings.ContainsAny(parts[1], " \t\r\n,") {
+		return "", codeError("machine_token_missing")
+	}
+	return parts[1], nil
+}
+
+type Claims struct {
+	Version    string   `json:"ver"`
+	Issuer     string   `json:"iss"`
+	Subject    string   `json:"sub"`
+	Audience   string   `json:"aud"`
+	Scopes     []string `json:"scope"`
+	IssuedAt   int64    `json:"iat"`
+	NotBefore  int64    `json:"nbf"`
+	ExpiresAt  int64    `json:"exp"`
+	TokenID    string   `json:"jti"`
+	Method     string   `json:"htm"`
+	Path       string   `json:"htu"`
+	BodySHA256 string   `json:"body_sha256"`
+}
+
+type protectedHeader struct {
+	Algorithm string `json:"alg"`
+	Type      string `json:"typ"`
+	KeyID     string `json:"kid"`
+	Version   string `json:"ver"`
+}
+
+type KeyRecord struct {
+	Principal string
+	KeyID     string
+	PublicKey ed25519.PublicKey
+	Audience  string
+	Scopes    []string
+	Enabled   bool
+	Revoked   bool
+}
+
+type Registry struct {
+	mu   sync.RWMutex
+	keys map[string]KeyRecord
+}
+
+func NewRegistry(records ...KeyRecord) (*Registry, error) {
+	r := &Registry{keys: make(map[string]KeyRecord, len(records))}
+	for _, record := range records {
+		if !keyIDPattern.MatchString(record.KeyID) || !principalPattern.MatchString(record.Principal) || !validAudiences[record.Audience] || len(record.PublicKey) != ed25519.PublicKeySize || !validScopeList(record.Scopes) {
+			return nil, errors.New("invalid machine key record")
+		}
+		if _, exists := r.keys[record.KeyID]; exists {
+			return nil, errors.New("duplicate machine key id")
+		}
+		record.PublicKey = slices.Clone(record.PublicKey)
+		record.Scopes = slices.Clone(record.Scopes)
+		r.keys[record.KeyID] = record
+	}
+	return r, nil
+}
+
+func (r *Registry) Lookup(keyID string) (KeyRecord, bool) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	record, ok := r.keys[keyID]
+	record.PublicKey = slices.Clone(record.PublicKey)
+	record.Scopes = slices.Clone(record.Scopes)
+	return record, ok
+}
+
+func (r *Registry) Revoke(keyID string) bool {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	record, ok := r.keys[keyID]
+	if !ok {
+		return false
+	}
+	record.Revoked = true
+	r.keys[keyID] = record
+	return true
+}
+
+type ReplayStore struct {
+	mu   sync.Mutex
+	used map[string]time.Time
+}
+
+// ReplayCache must atomically persist accepted (principal, jti) pairs until
+// expiry. ReplayStore is process-local and intended for tests or a single
+// uninterrupted process; connector implementations inject a durable store.
+type ReplayCache interface {
+	Consume(principal, tokenID string, expiresAt, now time.Time) bool
+}
+
+func NewReplayStore() *ReplayStore { return &ReplayStore{used: map[string]time.Time{}} }
+
+func (s *ReplayStore) Consume(principal, tokenID string, expiresAt, now time.Time) bool {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	for key, expiry := range s.used {
+		if !expiry.After(now) {
+			delete(s.used, key)
+		}
+	}
+	key := principal + "\x00" + tokenID
+	if _, exists := s.used[key]; exists {
+		return false
+	}
+	s.used[key] = expiresAt
+	return true
+}
+
+type Signer struct {
+	Principal  string
+	KeyID      string
+	PrivateKey ed25519.PrivateKey
+	Now        func() time.Time
+}
+
+func LoadPrivateKey(path string) (ed25519.PrivateKey, error) {
+	if strings.TrimSpace(path) == "" {
+		return nil, errors.New("machine private key path is required")
+	}
+	raw, err := os.ReadFile(path)
+	if err != nil {
+		return nil, errors.New("read machine private key")
+	}
+	block, rest := pem.Decode(raw)
+	if block == nil || len(bytes.TrimSpace(rest)) != 0 || block.Type != "PRIVATE KEY" {
+		return nil, errors.New("machine private key must be one PKCS#8 PEM block")
+	}
+	parsed, err := x509.ParsePKCS8PrivateKey(block.Bytes)
+	if err != nil {
+		return nil, errors.New("parse machine private key")
+	}
+	key, ok := parsed.(ed25519.PrivateKey)
+	if !ok || len(key) != ed25519.PrivateKeySize {
+		return nil, errors.New("machine private key is not Ed25519")
+	}
+	return slices.Clone(key), nil
+}
+
+func (s Signer) Mint(audience string, scopes []string, method, requestPath string, body []byte) (string, error) {
+	if !principalPattern.MatchString(s.Principal) || !keyIDPattern.MatchString(s.KeyID) || len(s.PrivateKey) != ed25519.PrivateKeySize || !validAudiences[audience] || !validScopeList(scopes) {
+		return "", errors.New("incomplete machine signer configuration")
+	}
+	normalizedPath, err := normalizePath(requestPath)
+	if err != nil {
+		return "", err
+	}
+	method = strings.ToUpper(method)
+	if !allowedMethod(method) {
+		return "", errors.New("unsupported machine request method")
+	}
+	now := time.Now().UTC()
+	if s.Now != nil {
+		now = s.Now().UTC()
+	}
+	tokenID, err := randomTokenID()
+	if err != nil {
+		return "", err
+	}
+	digest := sha256.Sum256(body)
+	claims := Claims{Version: Version, Issuer: s.Principal, Subject: s.Principal, Audience: audience,
+		Scopes: slices.Clone(scopes), IssuedAt: now.Unix(), NotBefore: now.Unix(), ExpiresAt: now.Add(MaxLifetime).Unix(),
+		TokenID: tokenID, Method: method, Path: normalizedPath, BodySHA256: hex.EncodeToString(digest[:])}
+	header := protectedHeader{Algorithm: "EdDSA", Type: TokenType, KeyID: s.KeyID, Version: Version}
+	headerJSON, _ := json.Marshal(header)
+	claimsJSON, _ := json.Marshal(claims)
+	signingInput := rawBase64(headerJSON) + "." + rawBase64(claimsJSON)
+	signature := ed25519.Sign(s.PrivateKey, []byte(signingInput))
+	return signingInput + "." + rawBase64(signature), nil
+}
+
+type Verifier struct {
+	Registry *Registry
+	Replay   ReplayCache
+	Now      func() time.Time
+}
+
+func (v Verifier) Verify(token, audience, requiredScope, method, requestPath string, body []byte) (Claims, error) {
+	if v.Registry == nil || v.Replay == nil {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	parts := strings.Split(token, ".")
+	if len(parts) != 3 || strings.Contains(token, "=") {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	headerBytes, err := decodeRaw(parts[0])
+	if err != nil {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	var header protectedHeader
+	if err = decodeClosed(headerBytes, &header); err != nil || header.Algorithm != "EdDSA" || header.Type != TokenType || header.Version != Version || !keyIDPattern.MatchString(header.KeyID) {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	record, ok := v.Registry.Lookup(header.KeyID)
+	if !ok {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	signature, err := decodeRaw(parts[2])
+	if err != nil || len(signature) != ed25519.SignatureSize || !ed25519.Verify(record.PublicKey, []byte(parts[0]+"."+parts[1]), signature) {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	if !record.Enabled || record.Revoked {
+		return Claims{}, codeError("machine_identity_revoked")
+	}
+	claimsBytes, err := decodeRaw(parts[1])
+	if err != nil {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	var claims Claims
+	if err = decodeClosed(claimsBytes, &claims); err != nil || !validClaimsShape(claims) || claims.Issuer != record.Principal || claims.Subject != record.Principal {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	now := time.Now().UTC()
+	if v.Now != nil {
+		now = v.Now().UTC()
+	}
+	nowUnix := now.Unix()
+	if claims.ExpiresAt-claims.IssuedAt <= 0 || claims.ExpiresAt-claims.IssuedAt > int64(MaxLifetime/time.Second) ||
+		claims.NotBefore < claims.IssuedAt || claims.NotBefore > claims.ExpiresAt || claims.IssuedAt > nowUnix+int64(AllowedSkew/time.Second) {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	if claims.NotBefore > nowUnix+int64(AllowedSkew/time.Second) || claims.ExpiresAt < nowUnix-int64(AllowedSkew/time.Second) {
+		return Claims{}, codeError("machine_token_expired")
+	}
+	if claims.Audience != audience || record.Audience != audience {
+		return Claims{}, codeError("machine_audience_denied")
+	}
+	if !slices.Contains(claims.Scopes, requiredScope) || !slices.Contains(record.Scopes, requiredScope) {
+		return Claims{}, codeError("machine_scope_denied")
+	}
+	normalizedPath, err := normalizePath(requestPath)
+	digest := sha256.Sum256(body)
+	if err != nil || claims.Method != strings.ToUpper(method) || claims.Path != normalizedPath || claims.BodySHA256 != hex.EncodeToString(digest[:]) {
+		return Claims{}, codeError("machine_token_invalid")
+	}
+	if !v.Replay.Consume(claims.Issuer, claims.TokenID, time.Unix(claims.ExpiresAt, 0).Add(AllowedSkew), now) {
+		return Claims{}, codeError("machine_token_replayed")
+	}
+	return claims, nil
+}
+
+func decodeClosed(raw []byte, target any) error {
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(target); err != nil {
+		return err
+	}
+	if err := decoder.Decode(&struct{}{}); !errors.Is(err, io.EOF) {
+		if err == nil {
+			return errors.New("trailing JSON value")
+		}
+		return err
+	}
+	return nil
+}
+
+func validClaimsShape(claims Claims) bool {
+	if claims.Version != Version || !principalPattern.MatchString(claims.Issuer) || claims.Subject != claims.Issuer || !validAudiences[claims.Audience] || !tokenIDPattern.MatchString(claims.TokenID) ||
+		len(claims.Scopes) == 0 || len(claims.Scopes) > 4 || !allowedMethod(claims.Method) || claims.Path == "" || len(claims.BodySHA256) != 64 {
+		return false
+	}
+	if !validScopeList(claims.Scopes) {
+		return false
+	}
+	_, err := hex.DecodeString(claims.BodySHA256)
+	return err == nil
+}
+
+func validScopeList(scopes []string) bool {
+	if len(scopes) == 0 || len(scopes) > 4 {
+		return false
+	}
+	seen := map[string]bool{}
+	for _, scope := range scopes {
+		if !validScopes[scope] || seen[scope] {
+			return false
+		}
+		seen[scope] = true
+	}
+	return true
+}
+
+func normalizePath(value string) (string, error) {
+	parsed, err := url.ParseRequestURI(value)
+	if err != nil || parsed.IsAbs() || parsed.Host != "" || parsed.RawQuery != "" || parsed.Fragment != "" || parsed.Path == "" || !strings.HasPrefix(parsed.Path, "/") || strings.Contains(parsed.Path, "\\") || strings.Contains(parsed.Path, "//") || path.Clean(parsed.Path) != parsed.Path {
+		return "", errors.New("machine request path must be a normalized absolute path without query or fragment")
+	}
+	return parsed.EscapedPath(), nil
+}
+
+func allowedMethod(method string) bool {
+	switch method {
+	case "GET", "POST", "PUT", "PATCH", "DELETE":
+		return true
+	default:
+		return false
+	}
+}
+
+func randomTokenID() (string, error) {
+	raw := make([]byte, 16)
+	if _, err := rand.Read(raw); err != nil {
+		return "", fmt.Errorf("generate machine token id: %w", err)
+	}
+	return rawBase64(raw), nil
+}
+
+func rawBase64(value []byte) string { return base64.RawURLEncoding.EncodeToString(value) }
+
+func decodeRaw(value string) ([]byte, error) {
+	return base64.RawURLEncoding.Strict().DecodeString(value)
+}

Sense/server/app/sense/integration/machine_identity/token_test.go

@@ -0,0 +1,219 @@
+package machine_identity
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+type crossLanguageVector struct {
+	PublicKey string `json:"public_key_base64url"`
+	Token     string `json:"token"`
+	Now       int64  `json:"now"`
+	Audience  string `json:"audience"`
+	Scope     string `json:"required_scope"`
+	Method    string `json:"method"`
+	Path      string `json:"path"`
+	Body      string `json:"body_base64"`
+}
+
+func testIdentity(t *testing.T) (Signer, *Registry, time.Time) {
+	t.Helper()
+	publicKey, privateKey, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	now := time.Unix(1_800_000_000, 0).UTC()
+	registry, err := NewRegistry(KeyRecord{Principal: "yv:sense:site-a", KeyID: "sense-key-0001", PublicKey: publicKey,
+		Audience: "yovision-brain", Scopes: []string{"source-config:write"}, Enabled: true})
+	if err != nil {
+		t.Fatal(err)
+	}
+	return Signer{Principal: "yv:sense:site-a", KeyID: "sense-key-0001", PrivateKey: privateKey, Now: func() time.Time { return now }}, registry, now
+}
+
+func errorCode(t *testing.T, err error) string {
+	t.Helper()
+	var coded *Error
+	if !errors.As(err, &coded) {
+		t.Fatalf("expected coded error, got %v", err)
+	}
+	return coded.Code
+}
+
+func TestMintAndVerifyRequestBoundToken(t *testing.T) {
+	signer, registry, now := testIdentity(t)
+	body := []byte(`{"revision":7}`)
+	token, err := signer.Mint("yovision-brain", []string{"source-config:write"}, "POST", "/machine/v1/source-config", body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	verifier := Verifier{Registry: registry, Replay: NewReplayStore(), Now: func() time.Time { return now }}
+	claims, err := verifier.Verify(token, "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if claims.Issuer != signer.Principal || claims.Subject != signer.Principal || claims.ExpiresAt-claims.IssuedAt != 300 {
+		t.Fatalf("unexpected claims: %+v", claims)
+	}
+}
+
+func TestBearerTokenHasNoCookieOrQueryFallback(t *testing.T) {
+	if token, err := BearerToken("Bearer compact.token.value"); err != nil || token != "compact.token.value" {
+		t.Fatal(err)
+	}
+	for _, value := range []string{"", "compact.token.value", "Bearer", "Bearer one two", "Cookie compact.token.value"} {
+		if _, err := BearerToken(value); errorCode(t, err) != "machine_token_missing" {
+			t.Fatalf("accepted %q", value)
+		}
+	}
+}
+
+func TestRejectsReplayWrongAudienceScopeAndRequest(t *testing.T) {
+	signer, registry, now := testIdentity(t)
+	body := []byte(`{"revision":7}`)
+	mint := func() string {
+		token, err := signer.Mint("yovision-brain", []string{"source-config:write"}, "POST", "/machine/v1/source-config", body)
+		if err != nil {
+			t.Fatal(err)
+		}
+		return token
+	}
+	verifier := Verifier{Registry: registry, Replay: NewReplayStore(), Now: func() time.Time { return now }}
+	token := mint()
+	if _, err := verifier.Verify(token, "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", body); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := verifier.Verify(token, "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", body); errorCode(t, err) != "machine_token_replayed" {
+		t.Fatal(err)
+	}
+	if _, err := verifier.Verify(mint(), "yovision-bell", "source-config:write", "POST", "/machine/v1/source-config", body); errorCode(t, err) != "machine_audience_denied" {
+		t.Fatal(err)
+	}
+	if _, err := verifier.Verify(mint(), "yovision-brain", "events:ingest", "POST", "/machine/v1/source-config", body); errorCode(t, err) != "machine_scope_denied" {
+		t.Fatal(err)
+	}
+	if _, err := verifier.Verify(mint(), "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", []byte("changed")); errorCode(t, err) != "machine_token_invalid" {
+		t.Fatal(err)
+	}
+}
+
+func TestExpiryRevocationAndRotation(t *testing.T) {
+	signer, registry, now := testIdentity(t)
+	body := []byte("{}")
+	token, _ := signer.Mint("yovision-brain", []string{"source-config:write"}, "POST", "/machine/v1/source-config", body)
+	expired := Verifier{Registry: registry, Replay: NewReplayStore(), Now: func() time.Time { return now.Add(6 * time.Minute) }}
+	if _, err := expired.Verify(token, "yovision-brain", "source-config:write", "POST", "/machine/v1/source-config", body); errorCode(t, err) != "machine_token_expired" {
+		t.Fatal(err)
+	}
+
+	oldPublic, oldPrivate, _ := ed25519.GenerateKey(rand.Reader)
+	newPublic, newPrivate, _ := ed25519.GenerateKey(rand.Reader)
+	rotation, err := NewRegistry(
+		KeyRecord{Principal: "yv:brain:node-a", KeyID: "brain-old-0001", PublicKey: oldPublic, Audience: "yovision-sense", Scopes: []string{"runtime-status:write"}, Enabled: true},
+		KeyRecord{Principal: "yv:brain:node-a", KeyID: "brain-new-0002", PublicKey: newPublic, Audience: "yovision-sense", Scopes: []string{"runtime-status:write"}, Enabled: true},
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+	oldSigner := Signer{Principal: "yv:brain:node-a", KeyID: "brain-old-0001", PrivateKey: oldPrivate, Now: func() time.Time { return now }}
+	newSigner := Signer{Principal: "yv:brain:node-a", KeyID: "brain-new-0002", PrivateKey: newPrivate, Now: func() time.Time { return now }}
+	oldToken, _ := oldSigner.Mint("yovision-sense", []string{"runtime-status:write"}, "POST", "/machine/v1/runtime-status", body)
+	newToken, _ := newSigner.Mint("yovision-sense", []string{"runtime-status:write"}, "POST", "/machine/v1/runtime-status", body)
+	verify := Verifier{Registry: rotation, Replay: NewReplayStore(), Now: func() time.Time { return now }}
+	if _, err = verify.Verify(oldToken, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); err != nil {
+		t.Fatal(err)
+	}
+	if _, err = verify.Verify(newToken, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); err != nil {
+		t.Fatal(err)
+	}
+	if !rotation.Revoke("brain-old-0001") {
+		t.Fatal("old key was not revoked")
+	}
+	oldAfterRevoke, _ := oldSigner.Mint("yovision-sense", []string{"runtime-status:write"}, "POST", "/machine/v1/runtime-status", body)
+	if _, err = verify.Verify(oldAfterRevoke, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); errorCode(t, err) != "machine_identity_revoked" {
+		t.Fatal(err)
+	}
+}
+
+func TestTransportPolicyRejectsUnsafeTLS(t *testing.T) {
+	safe := TransportPolicy{TLSMinVersion: tls.VersionTLS12, VerifyCertificate: true, VerifyHostname: true,
+		ConnectTimeout: time.Second, ResponseHeaderTimeout: time.Second, RequestTimeout: 2 * time.Second, MaxRequestBytes: 1024}
+	if err := safe.Validate(); err != nil {
+		t.Fatal(err)
+	}
+	unsafe := safe
+	unsafe.VerifyHostname = false
+	if err := unsafe.Validate(); err == nil {
+		t.Fatal("unsafe hostname policy accepted")
+	}
+	unsafe = safe
+	unsafe.TLSMinVersion = tls.VersionTLS11
+	if err := unsafe.Validate(); err == nil {
+		t.Fatal("TLS 1.1 accepted")
+	}
+}
+
+func TestVerifiesCrossLanguageVector(t *testing.T) {
+	vectorPath := filepath.Join("..", "..", "..", "..", "..", "..", "contracts", "tests", "machine-identity-v1", "cross-language-vector.json")
+	raw, err := os.ReadFile(vectorPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var vector crossLanguageVector
+	if err = json.Unmarshal(raw, &vector); err != nil {
+		t.Fatal(err)
+	}
+	publicKey, err := base64.RawURLEncoding.DecodeString(vector.PublicKey)
+	if err != nil {
+		t.Fatal(err)
+	}
+	body, err := base64.StdEncoding.DecodeString(vector.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	registry, err := NewRegistry(KeyRecord{Principal: "yv:brain:vector", KeyID: "brain-vector-0001", PublicKey: ed25519.PublicKey(publicKey), Audience: vector.Audience, Scopes: []string{vector.Scope}, Enabled: true})
+	if err != nil {
+		t.Fatal(err)
+	}
+	verifier := Verifier{Registry: registry, Replay: NewReplayStore(), Now: func() time.Time { return time.Unix(vector.Now, 0) }}
+	claims, err := verifier.Verify(vector.Token, vector.Audience, vector.Scope, vector.Method, vector.Path, body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if claims.Issuer != "yv:brain:vector" {
+		t.Fatalf("unexpected issuer: %s", claims.Issuer)
+	}
+}
+
+func TestLoadsExternalPublicRegistryAndRejectsWrongAudience(t *testing.T) {
+	publicKey, _, _ := ed25519.GenerateKey(rand.Reader)
+	document := map[string]any{
+		"version": "yovision.machine-principal-registry/v1", "audience": "yovision-bell",
+		"principals": []any{map[string]any{"principal_id": "yv:sense:site-a", "enabled": true, "keys": []any{map[string]any{
+			"kid": "sense-key-0001", "public_key_base64url": base64.RawURLEncoding.EncodeToString(publicKey), "status": "active", "scopes": []string{"events:ingest"},
+		}}}},
+	}
+	raw, _ := json.Marshal(document)
+	file := filepath.Join(t.TempDir(), "principals.json")
+	if err := os.WriteFile(file, raw, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	registry, err := LoadRegistry(file, "yovision-bell")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if record, ok := registry.Lookup("sense-key-0001"); !ok || record.Principal != "yv:sense:site-a" {
+		t.Fatal("registry record missing")
+	}
+	if _, err = LoadRegistry(file, "yovision-sense"); err == nil {
+		t.Fatal("wrong registry audience accepted")
+	}
+}

Sense/server/app/sense/integration/machine_identity/transport.go

@@ -0,0 +1,39 @@
+package machine_identity
+
+import (
+	"crypto/tls"
+	"errors"
+	"net/http"
+	"time"
+)
+
+type TransportPolicy struct {
+	TLSMinVersion         uint16
+	VerifyCertificate     bool
+	VerifyHostname        bool
+	ConnectTimeout        time.Duration
+	ResponseHeaderTimeout time.Duration
+	RequestTimeout        time.Duration
+	MaxRequestBytes       int64
+}
+
+func (p TransportPolicy) Validate() error {
+	if p.TLSMinVersion < tls.VersionTLS12 || !p.VerifyCertificate || !p.VerifyHostname || p.ConnectTimeout < 100*time.Millisecond || p.ConnectTimeout > 30*time.Second ||
+		p.ResponseHeaderTimeout < 100*time.Millisecond || p.ResponseHeaderTimeout > 30*time.Second || p.RequestTimeout < 100*time.Millisecond || p.RequestTimeout > 60*time.Second ||
+		p.MaxRequestBytes < 1 || p.MaxRequestBytes > 10*1024*1024 {
+		return errors.New("machine transport policy is unsafe")
+	}
+	return nil
+}
+
+func (p TransportPolicy) HTTPClient() (*http.Client, error) {
+	if err := p.Validate(); err != nil {
+		return nil, err
+	}
+	transport := &http.Transport{
+		TLSClientConfig:       &tls.Config{MinVersion: p.TLSMinVersion},
+		TLSHandshakeTimeout:   p.ConnectTimeout,
+		ResponseHeaderTimeout: p.ResponseHeaderTimeout,
+	}
+	return &http.Client{Transport: transport, Timeout: p.RequestTimeout}, nil
+}

Sense/server/app/sense/local_event/outbox.go

@@ -8,12 +8,12 @@ import (
 
 	"gorm.io/gorm"
 
-	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/outbox"
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/bell_connector"
 )
 
 // CreateWithOutbox commits the local candidate and its internal delivery
-// record atomically. The payload remains Sense-internal and is not a Bell or
-// Brain contract.
+// record atomically. The payload is the frozen anonymous event contract; it
+// never carries the candidate's internal evidence path or delivery attempts.
 func CreateWithOutbox(ctx context.Context, db *gorm.DB, candidate EventCandidate, payload map[string]interface{}, now time.Time) error {
 	encoded, err := json.Marshal(payload)
 	if err != nil {
@@ -23,7 +23,7 @@ func CreateWithOutbox(ctx context.Context, db *gorm.DB, candidate EventCandidate
 		if err := tx.Create(&candidate).Error; err != nil {
 			return fmt.Errorf("create local event candidate: %w", err)
 		}
-		_, err = outbox.Enqueue(tx, outbox.EnqueueInput{InternalType: "local_event_candidate", BusinessRef: candidate.ID, IdempotencyKey: "local-event:" + candidate.ID + ":v1", PayloadJSON: encoded}, now)
+		_, err = bell_connector.EnqueueEvent(tx, encoded, now)
 		return err
 	})
 }

Sense/server/app/sense/local_event/outbox_test.go

@@ -2,6 +2,9 @@ package local_event
 
 import (
 	"context"
+	"encoding/json"
+	"os"
+	"path/filepath"
 	"testing"
 	"time"
 
@@ -9,6 +12,7 @@ import (
 	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
 
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/bell_connector"
 	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/outbox"
 )
 
@@ -24,7 +28,18 @@ func TestCreateWithOutboxCommitsAndRollsBackAtomically(t *testing.T) {
 	}
 	now := time.Date(2026, 8, 28, 10, 0, 0, 0, time.UTC)
 	candidate := EventCandidate{ID: uuid.NewString(), OccurredAt: now, SourceRef: "SEN-CAM-01", RuleRef: "rule-1", RuleName: "区域闯入", CandidateState: CandidateStateCandidate, EvidenceState: EvidenceStatePending, RetainUntil: now.Add(24 * time.Hour)}
-	if err = CreateWithOutbox(context.Background(), db, candidate, map[string]interface{}{"eventId": candidate.ID}, now); err != nil {
+	fixturePath := filepath.Join("..", "..", "..", "..", "..", "contracts", "events", "v1", "examples", "dangerous-area.json")
+	fixture, err := os.ReadFile(fixturePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var payload map[string]interface{}
+	if err = json.Unmarshal(fixture, &payload); err != nil {
+		t.Fatal(err)
+	}
+	payload["producer_id"] = "sense-local"
+	payload["source_event_id"] = candidate.ID
+	if err = CreateWithOutbox(context.Background(), db, candidate, payload, now); err != nil {
 		t.Fatal(err)
 	}
 	var candidates, messages int64
@@ -33,9 +48,13 @@ func TestCreateWithOutboxCommitsAndRollsBackAtomically(t *testing.T) {
 	if candidates != 1 || messages != 1 {
 		t.Fatalf("candidates=%d messages=%d", candidates, messages)
 	}
+	var message outbox.Message
+	if err = db.First(&message).Error; err != nil || message.InternalType != bell_connector.OutboxType {
+		t.Fatalf("local event did not enqueue Bell contract delivery: type=%s err=%v", message.InternalType, err)
+	}
 	duplicate := candidate
 	duplicate.ID = candidate.ID
-	if err = CreateWithOutbox(context.Background(), db, duplicate, map[string]interface{}{"eventId": duplicate.ID}, now); err == nil {
+	if err = CreateWithOutbox(context.Background(), db, duplicate, payload, now); err == nil {
 		t.Fatal("expected duplicate transaction failure")
 	}
 	db.Model(&EventCandidate{}).Count(&candidates)

Sense/server/cmd/api/bell_connector_test.go

@@ -0,0 +1,119 @@
+package api
+
+import (
+	"context"
+	"crypto/ed25519"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-admin-team/go-admin-core/sdk"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/bell_connector"
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/outbox"
+)
+
+func TestBellConnectorRuntimeWiringIsOptionalAndMigrationGated(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, err := gorm.Open(sqlite.Open("file:sense-api-bell-connector?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	engine := gin.New()
+	disabled := func(string) string { return "" }
+	if err = startBellConnectorRuntime(context.Background(), engine, db, disabled); err != nil {
+		t.Fatalf("disabled connector prevented Sense startup: %v", err)
+	}
+	if len(engine.Routes()) != 0 {
+		t.Fatalf("disabled connector registered routes: %#v", engine.Routes())
+	}
+	enabled := func(key string) string {
+		if key == "SENSE_EVENT_INGRESS_ENABLED" {
+			return "true"
+		}
+		return ""
+	}
+	if err = startBellConnectorRuntime(context.Background(), gin.New(), db, enabled); err == nil {
+		t.Fatal("enabled connector started without its formal migration")
+	}
+
+	if err = db.AutoMigrate(
+		&bell_connector.InboundEvent{}, &bell_connector.EvidenceRecord{}, &bell_connector.ReplayToken{},
+		&outbox.Message{}, &outbox.DeliveryRecord{}, &outbox.Attempt{},
+	); err != nil {
+		t.Fatal(err)
+	}
+	registryPath := writeSenseRegistry(t)
+	runtimeEnvironment := func(key string) string {
+		switch key {
+		case "SENSE_EVENT_INGRESS_ENABLED":
+			return "true"
+		case "SENSE_MACHINE_PRINCIPAL_REGISTRY":
+			return registryPath
+		default:
+			return ""
+		}
+	}
+	registered := gin.New()
+	if err = startBellConnectorRuntime(context.Background(), registered, db, runtimeEnvironment); err != nil {
+		t.Fatalf("enabled connector did not register after migration: %v", err)
+	}
+	routes := registered.Routes()
+	if len(routes) != 2 || routes[0].Path != "/v1/events" || routes[1].Path != "/v1/evidence/:evidence_id" {
+		t.Fatalf("unexpected connector routes: %#v", routes)
+	}
+}
+
+func TestConnectorRuntimeUsesOnlyTheExplicitDefaultDatabase(t *testing.T) {
+	defaultDB, err := gorm.Open(sqlite.Open("file:sense-default-runtime?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	secondaryDB, err := gorm.Open(sqlite.Open("file:sense-secondary-runtime?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	sdk.Runtime.SetDb("", defaultDB)
+	sdk.Runtime.SetDb("analytics", secondaryDB)
+	t.Cleanup(func() {
+		sdk.Runtime.SetDb("", nil)
+		sdk.Runtime.SetDb("analytics", nil)
+	})
+	if selected := defaultRuntimeDatabase(); selected != defaultDB {
+		t.Fatalf("runtime selected a non-default database: %p", selected)
+	}
+}
+
+func writeSenseRegistry(t *testing.T) string {
+	t.Helper()
+	publicKey, _, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	document := map[string]any{
+		"version":  "yovision.machine-principal-registry/v1",
+		"audience": "yovision-sense",
+		"principals": []any{map[string]any{
+			"principal_id": "yv:brain:school-a", "enabled": true,
+			"keys": []any{map[string]any{
+				"kid": "brain-key-0001", "public_key_base64url": base64.RawURLEncoding.EncodeToString(publicKey),
+				"status": "active", "scopes": []string{"events:ingest"},
+			}},
+		}},
+	}
+	encoded, err := json.Marshal(document)
+	if err != nil {
+		t.Fatal(err)
+	}
+	path := filepath.Join(t.TempDir(), "sense-registry.json")
+	if err = os.WriteFile(path, encoded, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	return path
+}

Sense/server/cmd/api/server.go

@@ -17,9 +17,11 @@ import (
 	"github.com/go-admin-team/go-admin-core/sdk/pkg"
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
+	"gorm.io/gorm"
 
 	"git.ilapage.cn/ila/yovision/Sense/server/app/admin/models"
 	"git.ilapage.cn/ila/yovision/Sense/server/app/admin/router"
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/bell_connector"
 	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/media"
 	"git.ilapage.cn/ila/yovision/Sense/server/common/database"
 	"git.ilapage.cn/ila/yovision/Sense/server/common/global"
@@ -88,15 +90,19 @@ func run() error {
 	}
 	runtimeCtx, runtimeCancel := context.WithCancel(context.Background())
 	defer runtimeCancel()
-	var runtimeDBFound bool
-	for _, db := range sdk.Runtime.GetDb() {
-		runtimeDBFound = true
+	db := defaultRuntimeDatabase()
+	if db != nil {
+		engine, engineOK := sdk.Runtime.GetEngine().(*gin.Engine)
+		if !engineOK || engine == nil {
+			return errors.New("Sense connector runtime requires Gin engine")
+		}
+		if err := startBellConnectorRuntime(runtimeCtx, engine, db, os.Getenv); err != nil {
+			return fmt.Errorf("Bell connector runtime unavailable: %w", err)
+		}
 		if err := media.StartRuntime(runtimeCtx, db); err != nil {
 			return fmt.Errorf("MediaMTX runtime unavailable: %w", err)
 		}
-		break
-	}
-	if !runtimeDBFound {
+	} else {
 		log.Error("MediaMTX runtime unavailable: Sense database is not initialized")
 	}
 
@@ -166,6 +172,14 @@ func run() error {
 	return nil
 }
 
+func startBellConnectorRuntime(ctx context.Context, engine *gin.Engine, db *gorm.DB, getenv bell_connector.Environment) error {
+	return bell_connector.StartRuntime(ctx, engine, db, getenv)
+}
+
+func defaultRuntimeDatabase() *gorm.DB {
+	return sdk.Runtime.GetDbByKey("")
+}
+
 //var Router runtime.Router
 
 func tip() {

Sense/server/cmd/migrate/migration/version/2026083112000_bell_connector.go

@@ -0,0 +1,30 @@
+package version
+
+import (
+	"runtime"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/bell_connector"
+	"git.ilapage.cn/ila/yovision/Sense/server/cmd/migrate/migration"
+	common "git.ilapage.cn/ila/yovision/Sense/server/common/models"
+)
+
+func init() {
+	_, fileName, _, _ := runtime.Caller(0)
+	migration.Migrate.SetVersion(migration.GetFilename(fileName), migrateSenseBellConnector)
+}
+
+func migrateSenseBellConnector(db *gorm.DB, version string) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.AutoMigrate(
+			&bell_connector.InboundEvent{},
+			&bell_connector.EvidenceRecord{},
+			&bell_connector.ReplayToken{},
+		); err != nil {
+			return err
+		}
+		return tx.Clauses(clause.OnConflict{DoNothing: true}).Create(&common.Migration{Version: version}).Error
+	})
+}

Sense/server/cmd/migrate/migration/version/2026083112000_bell_connector_test.go

@@ -0,0 +1,66 @@
+package version
+
+import (
+	"testing"
+	"time"
+
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/bell_connector"
+	common "git.ilapage.cn/ila/yovision/Sense/server/common/models"
+)
+
+func TestSenseBellConnectorMigrationIsIdempotent(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&common.Migration{}); err != nil {
+		t.Fatal(err)
+	}
+
+	const version = "2026083112000"
+	for attempt := 0; attempt < 2; attempt++ {
+		if err = migrateSenseBellConnector(db, version); err != nil {
+			t.Fatalf("migration attempt %d: %v", attempt+1, err)
+		}
+	}
+
+	for name, model := range map[string]any{
+		"inbound events":   &bell_connector.InboundEvent{},
+		"evidence records": &bell_connector.EvidenceRecord{},
+		"replay tokens":    &bell_connector.ReplayToken{},
+	} {
+		if !db.Migrator().HasTable(model) {
+			t.Fatalf("%s table missing", name)
+		}
+		var count int64
+		if err = db.Model(model).Count(&count).Error; err != nil {
+			t.Fatalf("count %s: %v", name, err)
+		}
+		if count != 0 {
+			t.Fatalf("migration inserted %d %s fixtures", count, name)
+		}
+	}
+	if !db.Migrator().HasIndex(&bell_connector.ReplayToken{}, "ExpiresAt") {
+		t.Fatal("replay expiry index missing")
+	}
+
+	now := time.Now().UTC()
+	token := bell_connector.ReplayToken{Principal: "sense", TokenID: "token-1", ExpiresAt: now.Add(time.Minute), CreatedAt: now}
+	if err = db.Create(&token).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Create(&token).Error; err == nil {
+		t.Fatal("duplicate replay token accepted")
+	}
+
+	var applied int64
+	if err = db.Model(&common.Migration{}).Where("version = ?", version).Count(&applied).Error; err != nil {
+		t.Fatal(err)
+	}
+	if applied != 1 {
+		t.Fatalf("migration records=%d, want 1", applied)
+	}
+}

Sense/server/cmd/migrate/migration/version/2026083112000_brain_runtime.go

@@ -0,0 +1,25 @@
+package version
+
+import (
+	"runtime"
+
+	"gorm.io/gorm"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/brain_control"
+	"git.ilapage.cn/ila/yovision/Sense/server/cmd/migrate/migration"
+	common "git.ilapage.cn/ila/yovision/Sense/server/common/models"
+)
+
+func init() {
+	_, fileName, _, _ := runtime.Caller(0)
+	migration.Migrate.SetVersion(migration.GetFilename(fileName), migrateBrainRuntime)
+}
+
+func migrateBrainRuntime(db *gorm.DB, version string) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.AutoMigrate(&brain_control.ReplayToken{}, &brain_control.RuntimeProjection{}, &brain_control.SourceRevision{}); err != nil {
+			return err
+		}
+		return tx.Create(&common.Migration{Version: version}).Error
+	})
+}

Sense/server/cmd/migrate/migration/version/2026083112000_brain_runtime_test.go

@@ -0,0 +1,28 @@
+package version
+
+import (
+	"testing"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/brain_control"
+	common "git.ilapage.cn/ila/yovision/Sense/server/common/models"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestMigrateBrainRuntime(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open("file:brain-runtime-migration?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&common.Migration{}); err != nil {
+		t.Fatal(err)
+	}
+	if err = migrateBrainRuntime(db, "2026083112000"); err != nil {
+		t.Fatal(err)
+	}
+	for _, model := range []any{&brain_control.ReplayToken{}, &brain_control.RuntimeProjection{}, &brain_control.SourceRevision{}} {
+		if !db.Migrator().HasTable(model) {
+			t.Fatalf("missing table for %T", model)
+		}
+	}
+}

Sense/tests/integration/bell_connector/connector_test.go

@@ -0,0 +1,235 @@
+package bell_connector_test
+
+import (
+	"bytes"
+	"context"
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/tls"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/bell_connector"
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/machine_identity"
+	"git.ilapage.cn/ila/yovision/Sense/server/app/sense/outbox"
+)
+
+func TestPersistentOutboxRetriesWithoutChangingOriginalIdentity(t *testing.T) {
+	db, databasePath := openDatabase(t)
+	body := fixture(t)
+	_, privateKey, _ := ed25519.GenerateKey(rand.Reader)
+	signer := machine_identity.Signer{Principal: "yv:sense:school-a", KeyID: "sense-key-0001", PrivateKey: privateKey, Now: func() time.Time { return time.Date(2026, 8, 31, 1, 0, 0, 0, time.UTC) }}
+	var attempts atomic.Int32
+	var received [][]byte
+	server := httptest.NewServer(http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
+		payload := make([]byte, request.ContentLength)
+		_, _ = request.Body.Read(payload)
+		received = append(received, payload)
+		requestID := request.Header.Get("X-Request-ID")
+		writer.Header().Set("X-Request-ID", requestID)
+		if request.Header.Get("X-YoVision-Relay-ID") != "sense-school-a" || !strings.HasPrefix(request.Header.Get("Authorization"), "Bearer ") || len(requestID) < 16 || len(requestID) > 128 {
+			http.Error(writer, "missing relay identity", http.StatusUnauthorized)
+			return
+		}
+		if attempts.Add(1) == 1 {
+			writer.WriteHeader(http.StatusServiceUnavailable)
+			_, _ = writer.Write([]byte(`{"code":"ingest_unavailable","message":"temporarily unavailable"}`))
+			return
+		}
+		writer.Header().Set("Content-Type", "application/json")
+		writer.WriteHeader(http.StatusCreated)
+		_, _ = writer.Write([]byte(`{"event_id":"bell-event-1","producer_id":"brain-school-a","source_event_id":"evt-area-20260831-0001","disposition":"created","payload_sha256":"4cc1e93820195caf713ea675ff33f178c9d4997dd8a81cb61287e9fea0e3d5e1"}`))
+	}))
+	defer server.Close()
+
+	now := time.Date(2026, 8, 31, 1, 0, 0, 0, time.UTC)
+	if _, err := bell_connector.EnqueueEvent(db, body, now); err != nil {
+		t.Fatal(err)
+	}
+	client := &bell_connector.Client{Endpoint: server.URL, RelayID: "sense-school-a", Signer: signer, HTTP: server.Client(), Enabled: true}
+	relay := bell_connector.Relay{DB: db, Client: client, Now: func() time.Time { return now }, Backoff: func(int) time.Duration { return 0 }}
+	if delivered, err := relay.DeliverBatch(context.Background(), "worker-1", 10); err != nil || delivered != 0 {
+		t.Fatalf("unavailable delivery=%d err=%v", delivered, err)
+	}
+	var queued outbox.Message
+	if err := db.First(&queued).Error; err != nil || queued.State != outbox.StateRetry {
+		t.Fatalf("outbox was not retained for retry: state=%s err=%v", queued.State, err)
+	}
+	sqlDatabase, err := db.DB()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = sqlDatabase.Close(); err != nil {
+		t.Fatal(err)
+	}
+	db = openDatabasePath(t, databasePath)
+	if err = db.First(&queued).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	// Constructing a new relay simulates restart; the durable row is claimed
+	// and delivered with its original bytes and business identity.
+	restarted := bell_connector.Relay{DB: db, Client: client, Now: func() time.Time { return now }, Backoff: func(int) time.Duration { return 0 }}
+	if delivered, err := restarted.DeliverBatch(context.Background(), "worker-2", 10); err != nil || delivered != 1 {
+		t.Fatalf("recovery delivery=%d err=%v", delivered, err)
+	}
+	if len(received) != 2 || string(received[0]) != string(body) || string(received[1]) != string(body) || bell_connector.PreserveIdentity(received[0], received[1]) != nil {
+		t.Fatal("relay changed the frozen payload or original identity")
+	}
+	if err := db.First(&queued).Error; err != nil || queued.State != outbox.StateDelivered {
+		t.Fatalf("outbox not delivered: state=%s err=%v", queued.State, err)
+	}
+}
+
+func TestTerminalConflictDisabledTimeoutAndReplayRestart(t *testing.T) {
+	db, databasePath := openDatabase(t)
+	body := fixture(t)
+	_, privateKey, _ := ed25519.GenerateKey(rand.Reader)
+	signer := machine_identity.Signer{Principal: "yv:sense:school-a", KeyID: "sense-key-0001", PrivateKey: privateKey}
+	policy := machine_identity.TransportPolicy{TLSMinVersion: tls.VersionTLS12, VerifyCertificate: true, VerifyHostname: true, ConnectTimeout: time.Second, ResponseHeaderTimeout: time.Second, RequestTimeout: time.Second, MaxRequestBytes: 64 * 1024}
+	if _, err := bell_connector.NewClient("https://user:pass@bell.example", "sense-school-a", signer, policy); err == nil || !strings.Contains(err.Error(), "HTTPS origin") {
+		t.Fatalf("endpoint userinfo was not rejected: %v", err)
+	}
+	conflictServer := httptest.NewServer(http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
+		writer.WriteHeader(http.StatusConflict)
+		_, _ = writer.Write([]byte(`{"code":"idempotency_conflict","message":"conflict","existing_event_id":"bell-1"}`))
+	}))
+	defer conflictServer.Close()
+	if _, err := bell_connector.EnqueueEvent(db, body, time.Now()); err != nil {
+		t.Fatal(err)
+	}
+	client := &bell_connector.Client{Endpoint: conflictServer.URL, Signer: signer, HTTP: conflictServer.Client(), Enabled: true}
+	if _, err := (bell_connector.Relay{DB: db, Client: client}).DeliverBatch(context.Background(), "worker", 1); err != nil {
+		t.Fatal(err)
+	}
+	var message outbox.Message
+	if err := db.First(&message).Error; err != nil || message.State != outbox.StateDead {
+		t.Fatalf("terminal conflict was retried: state=%s err=%v", message.State, err)
+	}
+	if _, err := (bell_connector.Client{Enabled: false}).Send(context.Background(), body); err == nil || !strings.Contains(err.Error(), "connector_disabled") {
+		t.Fatalf("disabled connector error=%v", err)
+	}
+	cancelled, cancel := context.WithCancel(context.Background())
+	cancel()
+	if _, err := client.Send(cancelled, body); err == nil {
+		t.Fatal("cancelled/timeout request unexpectedly succeeded")
+	}
+
+	now := time.Now().UTC()
+	firstStore := bell_connector.PersistentReplayStore{DB: db}
+	if !firstStore.Consume("yv:bell:school-a", "abcdefghijklmnopqrstuv", now.Add(time.Minute), now) {
+		t.Fatal("first replay consume failed")
+	}
+	sqlDatabase, err := db.DB()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = sqlDatabase.Close(); err != nil {
+		t.Fatal(err)
+	}
+	db = openDatabasePath(t, databasePath)
+	restartedStore := bell_connector.PersistentReplayStore{DB: db}
+	if restartedStore.Consume("yv:bell:school-a", "abcdefghijklmnopqrstuv", now.Add(time.Minute), now) {
+		t.Fatal("replay was accepted after store restart")
+	}
+}
+
+func TestBrainIngressAndBellEvidenceEndpoint(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	db, _ := openDatabase(t)
+	brainPublic, brainPrivate, _ := ed25519.GenerateKey(rand.Reader)
+	bellPublic, bellPrivate, _ := ed25519.GenerateKey(rand.Reader)
+	registry, err := machine_identity.NewRegistry(
+		machine_identity.KeyRecord{Principal: "yv:brain:school-a", KeyID: "brain-key-0001", PublicKey: brainPublic, Audience: "yovision-sense", Scopes: []string{"events:ingest"}, Enabled: true},
+		machine_identity.KeyRecord{Principal: "yv:bell:school-a", KeyID: "bell-key-0001", PublicKey: bellPublic, Audience: "yovision-sense", Scopes: []string{"evidence:read"}, Enabled: true},
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+	now := time.Date(2026, 8, 31, 1, 0, 0, 0, time.UTC)
+	verifier := machine_identity.Verifier{Registry: registry, Replay: bell_connector.PersistentReplayStore{DB: db}, Now: func() time.Time { return now }}
+	body := fixture(t)
+	brainSigner := machine_identity.Signer{Principal: "yv:brain:school-a", KeyID: "brain-key-0001", PrivateKey: brainPrivate, Now: func() time.Time { return now }}
+	token, err := brainSigner.Mint("yovision-sense", []string{"events:ingest"}, http.MethodPost, "/v1/events", body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	request := httptest.NewRequest(http.MethodPost, "/v1/events", bytes.NewReader(body))
+	request.Header.Set("Authorization", "Bearer "+token)
+	request.Header.Set("X-Request-ID", "request-id-0000001")
+	response := httptest.NewRecorder()
+	ginContext, _ := gin.CreateTestContext(response)
+	ginContext.Request = request
+	(bell_connector.IngressHandler{DB: db, Verifier: verifier, EvidenceOwnerID: "sense-school-a", Now: func() time.Time { return now }}).Post(ginContext)
+	if response.Code != http.StatusAccepted {
+		t.Fatalf("Brain ingress status=%d body=%s", response.Code, response.Body.String())
+	}
+	var evidence bell_connector.EvidenceRecord
+	if err = db.First(&evidence, "evidence_id = ?", "ev-school-east-0001").Error; err != nil {
+		t.Fatal(err)
+	}
+	bellSigner := machine_identity.Signer{Principal: "yv:bell:school-a", KeyID: "bell-key-0001", PrivateKey: bellPrivate, Now: func() time.Time { return now }}
+	path := "/v1/evidence/ev-school-east-0001"
+	token, err = bellSigner.Mint("yovision-sense", []string{"evidence:read"}, http.MethodGet, path, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	getRequest := httptest.NewRequest(http.MethodGet, path, nil)
+	getRequest.Header.Set("Authorization", "Bearer "+token)
+	getRequest.Header.Set("X-Request-ID", "request-id-0000002")
+	getResponse := httptest.NewRecorder()
+	getContext, _ := gin.CreateTestContext(getResponse)
+	getContext.Request = getRequest
+	getContext.Params = gin.Params{{Key: "evidence_id", Value: "ev-school-east-0001"}}
+	(bell_connector.EvidenceHandler{DB: db, Verifier: verifier, Now: func() time.Time { return now }}).Get(getContext)
+	if getResponse.Code != http.StatusOK || !bytes.Equal(getResponse.Body.Bytes(), evidence.Payload) {
+		t.Fatalf("evidence lookup status=%d body=%s", getResponse.Code, getResponse.Body.String())
+	}
+}
+
+func openDatabase(t *testing.T) (*gorm.DB, string) {
+	databasePath := filepath.Join(t.TempDir(), "sense-bell-connector.sqlite")
+	return openDatabasePath(t, databasePath), databasePath
+}
+
+func openDatabasePath(t *testing.T, databasePath string) *gorm.DB {
+	t.Helper()
+	db, err := gorm.Open(sqlite.Open(databasePath), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&outbox.Message{}, &outbox.DeliveryRecord{}, &outbox.Attempt{}, &bell_connector.ReplayToken{}, &bell_connector.InboundEvent{}, &bell_connector.EvidenceRecord{}); err != nil {
+		t.Fatal(err)
+	}
+	sqlDatabase, err := db.DB()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = sqlDatabase.Close() })
+	return db
+}
+
+func fixture(t *testing.T) []byte {
+	t.Helper()
+	path := filepath.Join("..", "..", "..", "..", "contracts", "events", "v1", "examples", "dangerous-area.json")
+	body, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var event map[string]any
+	if json.Unmarshal(body, &event) != nil {
+		t.Fatal("invalid fixture")
+	}
+	return body
+}

Sense/tests/integration/bell_connector/go.mod

@@ -0,0 +1,72 @@
+module git.ilapage.cn/ila/yovision/Sense/tests/integration/bell_connector
+
+go 1.26.5
+
+require (
+	git.ilapage.cn/ila/yovision/Sense/server v0.0.0
+	gorm.io/driver/sqlite v1.6.0
+	gorm.io/gorm v1.31.2
+)
+
+require (
+	dario.cat/mergo v1.0.1 // indirect
+	github.com/BurntSushi/toml v1.5.0 // indirect
+	github.com/andeya/ameda v1.5.3 // indirect
+	github.com/andeya/goutil v1.1.2 // indirect
+	github.com/bitly/go-simplejson v0.5.1 // indirect
+	github.com/bmatcuk/doublestar/v4 v4.10.0 // indirect
+	github.com/bytedance/go-tagexpr/v2 v2.9.11 // indirect
+	github.com/bytedance/gopkg v0.1.4 // indirect
+	github.com/bytedance/sonic v1.15.2 // indirect
+	github.com/bytedance/sonic/loader v0.5.2 // indirect
+	github.com/casbin/casbin/v2 v2.135.0 // indirect
+	github.com/casbin/govaluate v1.10.0 // indirect
+	github.com/chanxuehong/rand v0.0.0-20211009035549-2f07823e8e99 // indirect
+	github.com/chanxuehong/wechat v0.0.0-20230222024006-36f0325263cd // indirect
+	github.com/cloudwego/base64x v0.1.7 // indirect
+	github.com/fsnotify/fsnotify v1.9.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.15 // indirect
+	github.com/ghodss/yaml v1.0.0 // indirect
+	github.com/gin-contrib/sse v1.1.1 // indirect
+	github.com/gin-gonic/gin v1.12.0 // indirect
+	github.com/go-admin-team/go-admin-core v1.5.3-rc.3.0.20250408121721-2763de5dcdf4 // indirect
+	github.com/go-admin-team/go-admin-core/plugins/logger/zap v1.5.2 // indirect
+	github.com/go-admin-team/go-admin-core/sdk v1.5.3-rc.3.0.20250408121721-2763de5dcdf4 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.30.3 // indirect
+	github.com/goccy/go-json v0.10.6 // indirect
+	github.com/goccy/go-yaml v1.19.2 // indirect
+	github.com/golang-jwt/jwt/v5 v5.3.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.4.0 // indirect
+	github.com/leodido/go-urn v1.5.0 // indirect
+	github.com/mattn/go-isatty v0.0.24 // indirect
+	github.com/mattn/go-sqlite3 v1.14.49 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/nyaruka/phonenumbers v1.2.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.4.3 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/quic-go/qpack v0.6.0 // indirect
+	github.com/quic-go/quic-go v0.61.0 // indirect
+	github.com/robfig/cron/v3 v3.0.1 // indirect
+	github.com/spf13/cast v1.7.1 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.3.2 // indirect
+	go.mongodb.org/mongo-driver/v2 v2.8.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
+	golang.org/x/arch v0.30.0 // indirect
+	golang.org/x/crypto v0.54.0 // indirect
+	golang.org/x/net v0.57.0 // indirect
+	golang.org/x/sys v0.47.0 // indirect
+	golang.org/x/text v0.40.0 // indirect
+	google.golang.org/protobuf v1.36.11 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)
+
+replace git.ilapage.cn/ila/yovision/Sense/server => ../../../server

Sense/tests/integration/bell_connector/go.sum

@@ -0,0 +1,204 @@
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Sense/tests/integration/brain_control/connector_test.go

@@ -0,0 +1,138 @@
+package brain_control_test
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"encoding/json"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	bc "git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/brain_control"
+	mi "git.ilapage.cn/ila/yovision/Sense/server/app/sense/integration/machine_identity"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+func testDB(t *testing.T, name string) *gorm.DB {
+	t.Helper()
+	db, err := gorm.Open(sqlite.Open("file:"+name+"?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = db.AutoMigrate(&bc.ReplayToken{}, &bc.RuntimeProjection{}, &bc.SourceRevision{}); err != nil {
+		t.Fatal(err)
+	}
+	return db
+}
+
+func TestMapperProducesCredentialFreeFrozenContract(t *testing.T) {
+	now := time.Date(2026, 8, 31, 0, 0, 0, 0, time.UTC)
+	c, err := bc.MapSourceConfig(bc.SourceFacts{ConfigID: "gate-primary", SiteID: "site-east", LogicalDeviceID: "camera-1", MediaPath: "site-east/camera-1/main", Revision: 1, PublishedAt: now, EffectiveAt: now, Profile: bc.Profile{ID: "main", Width: 1920, Height: 1080, Encoding: "h264", FrameRate: 25}, RuleSetVersion: "rules-1", Areas: []bc.AreaRule{{ID: "danger", Version: 1, Kind: "danger_area", Enabled: true, Points: []bc.Point{{X: .1, Y: .1}, {X: .8, Y: .1}, {X: .5, Y: .8}}}}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = bc.ValidateSourceConfig(c); err != nil {
+		t.Fatal(err)
+	}
+	raw, _ := json.Marshal(c)
+	text := strings.ToLower(string(raw))
+	for _, secret := range []string{"password", "username", "rtsp://", "stream_uri", "credential"} {
+		if strings.Contains(text, secret) {
+			t.Fatalf("leaked %q", secret)
+		}
+	}
+	c2, err := bc.MapSourceConfig(bc.SourceFacts{ConfigID: "gate-primary", SiteID: "site-east", LogicalDeviceID: "camera-1", MediaPath: "site-east/camera-1/main", Revision: 2, PublishedAt: now, EffectiveAt: now, Profile: bc.Profile{ID: "main-v2", Width: 1280, Height: 720, Encoding: "H265", FrameRate: 20}, RuleSetVersion: "rules-2", NeedsRecalibration: true, Areas: []bc.AreaRule{{ID: "danger", Version: 2, Kind: "danger_area", Enabled: true, Points: []bc.Point{{X: .1, Y: .1}, {X: .8, Y: .1}, {X: .5, Y: .8}}}}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if c2.RuleSet.State != "recalibration_required" || c2.RuleSet.Areas[0].Enabled {
+		t.Fatal("recalibration must disable rules")
+	}
+}
+
+func TestDurableReplayIsAtomicAndSurvivesVerifierRestart(t *testing.T) {
+	db := testDB(t, "sense-replay")
+	pub, priv, _ := ed25519.GenerateKey(rand.Reader)
+	now := time.Date(2026, 8, 31, 0, 0, 0, 0, time.UTC)
+	registry, _ := mi.NewRegistry(mi.KeyRecord{Principal: "yv:brain:east", KeyID: "brain-key-01", PublicKey: pub, Audience: "yovision-sense", Scopes: []string{"runtime-status:write"}, Enabled: true})
+	signer := mi.Signer{Principal: "yv:brain:east", KeyID: "brain-key-01", PrivateKey: priv, Now: func() time.Time { return now }}
+	body := []byte(`{"ok":true}`)
+	token, _ := signer.Mint("yovision-sense", []string{"runtime-status:write"}, "POST", "/machine/v1/runtime-status", body)
+	results := make(chan bool, 8)
+	var wg sync.WaitGroup
+	for i := 0; i < 8; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			v := mi.Verifier{Registry: registry, Replay: bc.GORMReplayStore{DB: db}, Now: func() time.Time { return now }}
+			_, err := v.Verify(token, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body)
+			results <- err == nil
+		}()
+	}
+	wg.Wait()
+	close(results)
+	accepted := 0
+	for ok := range results {
+		if ok {
+			accepted++
+		}
+	}
+	if accepted != 1 {
+		t.Fatalf("accepted=%d", accepted)
+	}
+	v2 := mi.Verifier{Registry: registry, Replay: bc.GORMReplayStore{DB: db}, Now: func() time.Time { return now }}
+	if _, err := v2.Verify(token, "yovision-sense", "runtime-status:write", "POST", "/machine/v1/runtime-status", body); err == nil {
+		t.Fatal("replay accepted after verifier restart")
+	}
+}
+
+func TestRevisionStoreConcurrentAndRestart(t *testing.T) {
+	db := testDB(t, "sense-revisions")
+	store := bc.RevisionStore{DB: db}
+	for want := int64(1); want <= 3; want++ {
+		got, err := store.Next("gate-primary")
+		if err != nil || got != want {
+			t.Fatalf("got %d err %v", got, err)
+		}
+	}
+	restarted := bc.RevisionStore{DB: db}
+	got, err := restarted.Next("gate-primary")
+	if err != nil || got != 4 {
+		t.Fatalf("restart got %d err %v", got, err)
+	}
+}
+
+func TestRuntimeProjectionStaleRecoveryMismatchAndOrdering(t *testing.T) {
+	db := testDB(t, "sense-projection")
+	now := time.Date(2026, 8, 31, 0, 0, 0, 0, time.UTC)
+	store := bc.ProjectionStore{DB: db, Clock: func() time.Time { return now }, StaleAfter: 90 * time.Second}
+	raw := statusJSON("018f4d6a-8d1b-4a25-8b37-9085f9c0d101", 41, now, "running", 20)
+	view, err := store.Ingest(raw, map[string]int64{"gate-primary": 21})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !view.RevisionMismatch || view.Stale {
+		t.Fatalf("bad initial view %+v", view)
+	}
+	now = now.Add(91 * time.Second)
+	view, err = store.View("brain-east-01")
+	if err != nil || !view.Offline || !view.Stale {
+		t.Fatalf("offline %+v %v", view, err)
+	}
+	raw = statusJSON("018f4d6a-8d1b-4a25-8b37-9085f9c0d102", 42, now, "running", 21)
+	view, err = store.Ingest(raw, map[string]int64{"gate-primary": 21})
+	if err != nil || !view.Recovered || view.RevisionMismatch {
+		t.Fatalf("recovery %+v %v", view, err)
+	}
+	if _, err = store.Ingest(statusJSON("018f4d6a-8d1b-4a25-8b37-9085f9c0d103", 41, now, "running", 21), nil); err == nil || err.Error() != "OUT_OF_ORDER_STATUS" {
+		t.Fatalf("expected ordering rejection: %v", err)
+	}
+}
+
+func statusJSON(id string, seq int64, observed time.Time, state string, revision int64) []byte {
+	v := map[string]any{"schema_version": bc.RuntimeStatusVersion, "status_id": id, "brain_instance_ref": "brain-east-01", "sequence": seq, "observed_at": observed.Format(time.RFC3339), "runtime": map[string]any{"state": state, "version": "1.0.0", "started_at": observed.Add(-time.Minute).Format(time.RFC3339)}, "model": map[string]any{"model_ref": "people-detection", "version": "2026.08.1"}, "configurations": []any{map[string]any{"config_id": "gate-primary", "apply_state": "applied", "applied_revision": revision, "error_code": nil}}, "health": map[string]any{"overall": "healthy", "error_codes": []any{}, "metrics": map[string]any{"load_percent": 1.0, "queue_depth": 0, "latency_ms": 2.0}}, "inputs": []any{}}
+	raw, _ := json.Marshal(v)
+	return raw
+}

Sense/tests/integration/brain_control/go.mod

@@ -0,0 +1,18 @@
+module git.ilapage.cn/ila/yovision/Sense/tests/integration/brain_control
+
+go 1.26.5
+
+require (
+	git.ilapage.cn/ila/yovision/Sense/server v0.0.0
+	gorm.io/driver/sqlite v1.6.0
+	gorm.io/gorm v1.31.2
+)
+
+require (
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/mattn/go-sqlite3 v1.14.49 // indirect
+	golang.org/x/text v0.40.0 // indirect
+)
+
+replace git.ilapage.cn/ila/yovision/Sense/server => ../../../server

Sense/tests/integration/brain_control/go.sum

@@ -0,0 +1,12 @@
+github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
+github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
+github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/mattn/go-sqlite3 v1.14.49 h1:B8jBHC3xhxZgxztrgruTuLucebnULQnx4W7cF7SAE9w=
+github.com/mattn/go-sqlite3 v1.14.49/go.mod h1:6JTjA44L93a0QCyJef5YvlPoKXntQPjzWv5gtm9sB6w=
+golang.org/x/text v0.40.0 h1:Ub2Z6/xjgF1WrYQz2nuITOEegKFtiIy+rieRJ5lHZKs=
+golang.org/x/text v0.40.0/go.mod h1:hpnzDAfGV753zIKo+wk3u1bVKCGPbrnF7+7LBF/UHVY=
+gorm.io/driver/sqlite v1.6.0 h1:WHRRrIiulaPiPFmDcod6prc4l2VGVWHz80KspNsxSfQ=
+gorm.io/driver/sqlite v1.6.0/go.mod h1:AO9V1qIQddBESngQUKWL9yoH93HIeA1X6V633rBwyT8=
+gorm.io/gorm v1.31.2 h1:3o8FXNo9v9S858gil+3LlZA1LkCOzgb4g5BL64FgaCo=
+gorm.io/gorm v1.31.2/go.mod h1:XyQVbO2k6YkOis7C2437jSit3SsDK72s7n7rsSHd+Gs=

contracts/events/v1/README.md

@@ -0,0 +1,58 @@
+# Standard event contract v1
+
+`yovision.event/v1` is the only shared representation of an anonymous safety event. It is an immutable fact, not a Bell Alert. Bell owns all rule matching, Alert, acknowledgement, close, notification and user/audit state.
+
+## Identity and idempotency
+
+The permanent idempotency key is the exact UTF-8 pair `(producer_id, source_event_id)`. `producer_id` always names the original producer. A Sense gateway/relay sends its own authenticated transport identity and optional `X-YoVision-Relay-ID`, but it must forward both key fields and the business payload unchanged. A retry is not a new event.
+
+After schema validation, calculate `payload_sha256` from the RFC 8785 JSON Canonicalization Scheme representation of the complete Event. The checked-in vector fixes the expected digest for supported implementations. Bell stores key, digest and Bell `event_id` permanently:
+
+- absent key: atomically create Event/Receipt and return `201` with `disposition=created`;
+- same key and digest: return the original `event_id` and digest with `200`, `disposition=duplicate`;
+- same key but another digest: return `409 idempotency_conflict`, append an audit fact, and mutate neither Event nor Alert;
+- identity lookup and insert must share a transaction/unique constraint so concurrent duplicates have the same result.
+
+Canonical timestamps in Event v1 are UTC RFC 3339 with exactly three fractional digits and `Z`. Optional members are omitted, never sent as `null`. Producers must reject non-finite numbers before canonicalization.
+
+## Mapper responsibilities
+
+| Role | Required responsibility | Must not do |
+|---|---|---|
+| Brain producer mapper | Convert `brain.internal.event-candidate/v1` into stable original identity, logical site/device/profile/rule/region refs, model version and anonymous observation; generate one `source_event_id` once and persist/reuse it across retries. | Expose internal candidate fields, face/person identity, camera credentials, file paths, Alert state, or regenerate identity during retry. |
+| Sense producer/evidence mapper | When Sense originates an event, apply the same original-identity rule; map its internal evidence record to a logical evidence reference and own later status resolution. | Put local path, RTSP URL, signed URL, credential or Outbox attempt ID into Event. |
+| Sense relay | Authenticate as a transport hop, preserve original `producer_id`, `source_event_id` and payload, retain retry/audit state outside the Event, and return Bell's response unchanged enough for deterministic retry handling. | Replace producer identity, create a new source ID, enrich/reorder semantics, or treat `409`/`422` as a transient retry. |
+| Bell consumer mapper | Validate before persistence; canonicalize; enforce permanent idempotency; map the immutable shared Event into Bell's private Event/Receipt and then independently evaluate rules to create an Alert. Unknown evidence becomes degraded evidence, not a rejected Event. | Persist arbitrary extension fields, import producer internals, or accept shared ack/close/notification/user state. |
+
+Field ownership is deliberately narrow:
+
+| Contract fields | Authoritative writer | Relay/Bell responsibility |
+|---|---|---|
+| `schema_version`, `producer_id`, `source_event_id` | Original Brain or Sense producer mapper | Relay preserves; Bell uses version gate and permanent idempotency key. |
+| `site_ref`, `device_ref`, `profile_ref` | Producer mapper from versioned logical configuration | Relay preserves; Bell treats as opaque external refs. |
+| `event_type`, `occurred_at`, `severity`, `rule`, `model`, `observation`, `region` | Brain/Sense mapper at the detection decision | Relay preserves; Bell validates and stores the immutable snapshot. |
+| `evidence[]` identity and initial status | Evidence-owning producer, normally Sense | Relay preserves; Bell stores the Event snapshot and resolves current metadata separately. |
+| `X-YoVision-Relay-ID` | Authenticated Sense transport hop | Bell audits transport metadata outside the immutable Event. |
+| `event_id`, `disposition`, `payload_sha256` | Bell ingest boundary | Producer/relay retain the receipt for deterministic retries. |
+
+## Errors, compatibility and fallback
+
+- `400 invalid_event`: schema, canonical form, or sensitive/unknown member violation. Terminal until the producer fixes the payload.
+- `409 idempotency_conflict`: same permanent key with a different payload. Terminal and audited; never overwrite the first Event.
+- `422 unsupported_schema_version`: unknown major/revision. Terminal for that payload.
+- Evidence `pending`, `processing`, `success` and `failed` are valid Event states. Bell keeps the Event and resolves/degrades evidence independently.
+
+v1 is closed (`additionalProperties=false`). Producers may enable a compatible revision only after all relays and Bell validate it. Any removed/renamed required field, changed meaning, enum narrowing, identity/canonicalization change, or new required member publishes a new major path such as `/v2`. During the compatibility window Bell keeps the previous version endpoint. Rollback disables the new producer version and resumes the last accepted version; it does not delete Event, Receipt, Outbox or audit facts.
+
+Unknown-version fallback is explicit: Bell returns `422`; relay records the terminal rejection without rewriting the payload; producer may remap the same internal candidate into a supported v1 payload only if it has not previously assigned that `(producer_id, source_event_id)` to a different canonical payload. Otherwise it must stop and require operator reconciliation.
+
+## Reproducible verification
+
+No third-party package is needed:
+
+```powershell
+python contracts/tests/events-v1/test_contract.py
+python contracts/tests/evidence-v1/test_contract.py
+```
+
+The tests validate Schema/OpenAPI references, mapper fixtures, RFC 8785-compatible canonical vectors used by v1 examples, duplicate/conflict behavior, unknown versions and sensitive-field rejection.

contracts/events/v1/event.schema.json

@@ -0,0 +1,77 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://yovision.local/contracts/events/v1/event.schema.json",
+  "title": "YoVision anonymous safety event v1",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "schema_version", "producer_id", "source_event_id", "site_ref", "device_ref",
+    "profile_ref", "event_type", "occurred_at", "severity", "rule", "model",
+    "observation", "region", "evidence"
+  ],
+  "properties": {
+    "schema_version": {"const": "yovision.event/v1"},
+    "producer_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "source_event_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "site_ref": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "device_ref": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "profile_ref": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "event_type": {"enum": ["dangerous_area_entered", "directional_line_crossed"]},
+    "occurred_at": {"type": "string", "format": "date-time", "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}\\.[0-9]{3}Z$"},
+    "severity": {"enum": ["low", "medium", "high", "critical"]},
+    "rule": {
+      "type": "object", "additionalProperties": false, "required": ["rule_id", "version"],
+      "properties": {
+        "rule_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+        "version": {"type": "string", "minLength": 1, "maxLength": 64}
+      }
+    },
+    "model": {
+      "type": "object", "additionalProperties": false, "required": ["name", "version"],
+      "properties": {
+        "name": {"type": "string", "minLength": 1, "maxLength": 128},
+        "version": {"type": "string", "minLength": 1, "maxLength": 64}
+      }
+    },
+    "observation": {
+      "type": "object", "additionalProperties": false,
+      "required": ["track_id", "category", "confidence"],
+      "properties": {
+        "track_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+        "category": {"enum": ["person", "vehicle", "other"]},
+        "confidence": {"type": "number", "minimum": 0, "maximum": 1},
+        "bbox_normalized": {
+          "type": "array", "minItems": 4, "maxItems": 4,
+          "items": {"type": "number", "minimum": 0, "maximum": 1}
+        }
+      }
+    },
+    "region": {
+      "type": "object", "additionalProperties": false,
+      "required": ["region_id", "kind"],
+      "properties": {
+        "region_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+        "kind": {"enum": ["area", "line"]},
+        "crossing_direction": {"enum": ["a_to_b", "b_to_a"]}
+      },
+      "allOf": [
+        {"if": {"properties": {"kind": {"const": "line"}}, "required": ["kind"]}, "then": {"required": ["crossing_direction"]}},
+        {"if": {"properties": {"kind": {"const": "area"}}, "required": ["kind"]}, "then": {"not": {"required": ["crossing_direction"]}}}
+      ]
+    },
+    "evidence": {
+      "type": "array", "maxItems": 8, "uniqueItems": true,
+      "items": {"$ref": "../../evidence/v1/evidence-reference.schema.json"}
+    }
+  },
+  "allOf": [
+    {
+      "if": {"properties": {"event_type": {"const": "dangerous_area_entered"}}, "required": ["event_type"]},
+      "then": {"properties": {"region": {"properties": {"kind": {"const": "area"}}}}}
+    },
+    {
+      "if": {"properties": {"event_type": {"const": "directional_line_crossed"}}, "required": ["event_type"]},
+      "then": {"properties": {"region": {"properties": {"kind": {"const": "line"}}}}}
+    }
+  ]
+}

contracts/events/v1/examples/dangerous-area.json

@@ -0,0 +1,26 @@
+{
+  "schema_version": "yovision.event/v1",
+  "producer_id": "brain-school-a",
+  "source_event_id": "evt-area-20260831-0001",
+  "site_ref": "site-school-a",
+  "device_ref": "camera-east-gate",
+  "profile_ref": "profile-main-stream",
+  "event_type": "dangerous_area_entered",
+  "occurred_at": "2026-08-31T00:00:01.125Z",
+  "severity": "high",
+  "rule": {"rule_id": "rule-east-danger", "version": "3"},
+  "model": {"name": "anonymous-detector", "version": "2026.08"},
+  "observation": {"track_id": "track-0042", "category": "person", "confidence": 0.93, "bbox_normalized": [0.12, 0.2, 0.31, 0.74]},
+  "region": {"region_id": "region-east-danger", "kind": "area"},
+  "evidence": [
+    {
+      "schema_version": "yovision.evidence-reference/v1",
+      "evidence_id": "ev-school-east-0001",
+      "owner_id": "sense-school-a",
+      "type": "snapshot",
+      "status": "pending",
+      "captured_at": "2026-08-31T00:00:01.125Z",
+      "status_updated_at": "2026-08-31T00:00:01.125Z"
+    }
+  ]
+}

contracts/events/v1/examples/directional-line-crossed.json

@@ -0,0 +1,27 @@
+{
+  "schema_version": "yovision.event/v1",
+  "producer_id": "brain-school-a",
+  "source_event_id": "evt-line-20260831-0002",
+  "site_ref": "site-school-a",
+  "device_ref": "camera-north-corridor",
+  "profile_ref": "profile-main-stream",
+  "event_type": "directional_line_crossed",
+  "occurred_at": "2026-08-31T00:03:10.000Z",
+  "severity": "medium",
+  "rule": {"rule_id": "rule-north-one-way", "version": "1"},
+  "model": {"name": "anonymous-detector", "version": "2026.08"},
+  "observation": {"track_id": "track-0088", "category": "person", "confidence": 0.88},
+  "region": {"region_id": "line-north-one-way", "kind": "line", "crossing_direction": "b_to_a"},
+  "evidence": [
+    {
+      "schema_version": "yovision.evidence-reference/v1",
+      "evidence_id": "ev-school-east-0002",
+      "owner_id": "sense-school-a",
+      "type": "clip",
+      "status": "failed",
+      "captured_at": "2026-08-31T00:03:10.000Z",
+      "status_updated_at": "2026-08-31T00:03:13.100Z",
+      "failure": {"code": "processing_failed", "retryable": true}
+    }
+  ]
+}

contracts/events/v1/examples/duplicate-result.json

@@ -0,0 +1,7 @@
+{
+  "event_id": "bell-event-00000042",
+  "producer_id": "brain-school-a",
+  "source_event_id": "evt-area-20260831-0001",
+  "disposition": "duplicate",
+  "payload_sha256": "4cc1e93820195caf713ea675ff33f178c9d4997dd8a81cb61287e9fea0e3d5e1"
+}

contracts/events/v1/examples/idempotency-conflict-problem.json

@@ -0,0 +1,5 @@
+{
+  "code": "idempotency_conflict",
+  "message": "idempotency key already belongs to another canonical payload",
+  "existing_event_id": "bell-event-00000042"
+}

contracts/events/v1/examples/unsupported-version-problem.json

@@ -0,0 +1,5 @@
+{
+  "code": "unsupported_schema_version",
+  "message": "schema_version yovision.event/v2 is not accepted",
+  "field": "schema_version"
+}

contracts/events/v1/ingest-result.schema.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://yovision.local/contracts/events/v1/ingest-result.schema.json",
+  "title": "YoVision Bell event ingest result v1",
+  "type": "object",
+  "additionalProperties": false,
+  "required": ["event_id", "producer_id", "source_event_id", "disposition", "payload_sha256"],
+  "properties": {
+    "event_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "producer_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "source_event_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "disposition": {"enum": ["created", "duplicate"]},
+    "payload_sha256": {"type": "string", "pattern": "^[a-f0-9]{64}$"}
+  }
+}

contracts/events/v1/openapi.json

@@ -0,0 +1,22 @@
+{
+  "openapi": "3.1.0",
+  "info": {"title": "YoVision standard event ingest API", "version": "1.0.0"},
+  "paths": {
+    "/v1/events": {
+      "post": {
+        "summary": "Ingest one immutable anonymous safety event",
+        "parameters": [
+          {"name": "X-YoVision-Relay-ID", "in": "header", "required": false, "description": "Audited transport hop. A relay must not change producer_id or source_event_id.", "schema": {"type": "string", "maxLength": 128}}
+        ],
+        "requestBody": {"required": true, "content": {"application/json": {"schema": {"$ref": "./event.schema.json"}}}},
+        "responses": {
+          "201": {"description": "Created", "content": {"application/json": {"schema": {"$ref": "./ingest-result.schema.json"}}}},
+          "200": {"description": "Exact duplicate; returns the original Bell Event identity", "content": {"application/json": {"schema": {"$ref": "./ingest-result.schema.json"}}}},
+          "400": {"description": "Invalid or sensitive payload", "content": {"application/problem+json": {"schema": {"$ref": "./problem.schema.json"}}}},
+          "409": {"description": "Same idempotency key with a different canonical payload", "content": {"application/problem+json": {"schema": {"$ref": "./problem.schema.json"}}}},
+          "422": {"description": "Unsupported schema major version", "content": {"application/problem+json": {"schema": {"$ref": "./problem.schema.json"}}}}
+        }
+      }
+    }
+  }
+}

contracts/events/v1/problem.schema.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://yovision.local/contracts/events/v1/problem.schema.json",
+  "title": "YoVision contract problem v1",
+  "type": "object",
+  "additionalProperties": false,
+  "required": ["code", "message"],
+  "properties": {
+    "code": {"enum": ["invalid_event", "unsupported_schema_version", "idempotency_conflict", "evidence_not_found", "evidence_expired"]},
+    "message": {"type": "string", "minLength": 1, "maxLength": 512},
+    "field": {"type": "string", "pattern": "^[A-Za-z0-9_.\\[\\]-]{1,128}$"},
+    "existing_event_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"}
+  }
+}

contracts/evidence/v1/README.md

@@ -0,0 +1,30 @@
+# Evidence reference contract v1
+
+This contract shares metadata about a logical evidence object. It never grants object access. `owner_id` identifies the service that owns resolution; `evidence_id` is opaque to every consumer. Neither field may be interpreted as a URL or local path.
+
+## State and degradation
+
+- `pending`: capture was accepted but no processing started.
+- `processing`: capture or encoding is in progress.
+- `success`: capture completed; `content_type` and SHA-256 `integrity` are required. Access authorization is negotiated outside this payload by the machine-identity/connector work.
+- `failed`: `failure.code` and `retryable` are required. Bell keeps the immutable Event and renders evidence unavailable; it must not reject or close the Alert because evidence failed.
+- HTTP `404` means an unknown logical reference. `410` means expired evidence. Both degrade evidence only, not the Event.
+
+The payload forbids arbitrary properties, so filesystem paths, camera credentials, bearer/user tokens, signed URLs, face templates and notification/Alert state fail schema validation. Do not add access URLs to v1. A short-lived download grant, if later required, needs a separately reviewed endpoint and security contract.
+
+## Ownership
+
+- Brain may request evidence but maps only logical metadata it actually knows.
+- Sense is the default evidence owner and advances the status monotonically for a given capture attempt: `pending -> processing -> success|failed`. It must retain the same `evidence_id` while status changes.
+- A relay transports the reference unchanged and must not resolve it into a path or URL.
+- Bell stores the latest evidence metadata separately from its immutable Event. Evidence failure/expiry never changes Alert ack/close state.
+
+## Compatibility and rollback
+
+v1 consumers ignore no unknown fields because the v1 schema is closed. Additive fields therefore require a new schema revision that producers enable only after consumers accept it. Changed meaning, removed fields, or new required fields require `/v2`. Rollback disables the new producer and continues resolving stored v1 references; it never deletes Event, Receipt, Outbox, or evidence audit facts.
+
+Run the standalone contract check from the repository root:
+
+```powershell
+python contracts/tests/evidence-v1/test_contract.py
+```

contracts/evidence/v1/evidence-reference.schema.json

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+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://yovision.local/contracts/evidence/v1/evidence-reference.schema.json",
+  "title": "YoVision evidence logical reference v1",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "schema_version",
+    "evidence_id",
+    "owner_id",
+    "type",
+    "status",
+    "captured_at",
+    "status_updated_at"
+  ],
+  "properties": {
+    "schema_version": {"const": "yovision.evidence-reference/v1"},
+    "evidence_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "owner_id": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]{0,127}$"},
+    "type": {"enum": ["snapshot", "clip"]},
+    "status": {"enum": ["pending", "processing", "success", "failed"]},
+    "captured_at": {"type": "string", "format": "date-time"},
+    "status_updated_at": {"type": "string", "format": "date-time"},
+    "expires_at": {"type": "string", "format": "date-time"},
+    "content_type": {"enum": ["image/jpeg", "image/png", "video/mp4"]},
+    "integrity": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["algorithm", "digest", "size_bytes"],
+      "properties": {
+        "algorithm": {"const": "sha256"},
+        "digest": {"type": "string", "pattern": "^[a-f0-9]{64}$"},
+        "size_bytes": {"type": "integer", "minimum": 0}
+      }
+    },
+    "failure": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["code", "retryable"],
+      "properties": {
+        "code": {"enum": ["capture_failed", "processing_failed", "expired", "unavailable"]},
+        "retryable": {"type": "boolean"}
+      }
+    }
+  },
+  "allOf": [
+    {
+      "if": {"properties": {"status": {"const": "success"}}, "required": ["status"]},
+      "then": {"required": ["content_type", "integrity"], "not": {"required": ["failure"]}}
+    },
+    {
+      "if": {"properties": {"status": {"const": "failed"}}, "required": ["status"]},
+      "then": {"required": ["failure"], "not": {"anyOf": [{"required": ["content_type"]}, {"required": ["integrity"]}]}}
+    },
+    {
+      "if": {"properties": {"status": {"enum": ["pending", "processing"]}}, "required": ["status"]},
+      "then": {"not": {"anyOf": [{"required": ["content_type"]}, {"required": ["integrity"]}, {"required": ["failure"]}]}}
+    }
+  ]
+}

contracts/evidence/v1/examples/failed.json

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+{
+  "schema_version": "yovision.evidence-reference/v1",
+  "evidence_id": "ev-school-east-0002",
+  "owner_id": "sense-school-a",
+  "type": "clip",
+  "status": "failed",
+  "captured_at": "2026-08-31T00:03:10.000Z",
+  "status_updated_at": "2026-08-31T00:03:13.100Z",
+  "failure": {"code": "processing_failed", "retryable": true}
+}