docs: 修正协调 E2E 清理边界措辞 (#171)

用户已于 2026-08-31 明确验收通过 #155。

Bell/ACCEPTANCE.md

@@ -0,0 +1,59 @@
+# Bell 独立纵切验收
+
+本验收只使用 Bell 自身、临时 PostgreSQL 和项目内合成事件，不启动或调用 Sense、Brain，不连接默认 5432、生产数据库或客户数据。
+
+## 固定工具链
+
+```powershell
+$env:GOTOOLCHAIN='go1.26.5'
+go version
+node --version
+corepack pnpm@9.15.1 --version
+```
+
+预期分别为 Go 1.26.5、Node 22.22.1、pnpm 9.15.1。
+
+## 源码验证
+
+```powershell
+Set-Location Bell\server
+$env:GOTOOLCHAIN='go1.26.5'
+go test ./... -count=1
+go vet ./...
+go build ./...
+
+Set-Location ..\ui
+corepack pnpm@9.15.1 install --frozen-lockfile
+corepack pnpm@9.15.1 lint
+corepack pnpm@9.15.1 test:unit --runInBand
+corepack pnpm@9.15.1 build:prod
+```
+
+## Windows 包和隔离 E2E
+
+```powershell
+Set-Location <仓库根目录>
+Bell\scripts\build\build-windows.bat
+pwsh -NoProfile -File Bell\scripts\build\test-package.ps1 -PackageRoot Bell\dist\bell-windows-amd64
+pwsh -NoProfile -File Bell\scripts\test-independent-e2e.ps1 -PreparedPackageRoot Bell\dist\bell-windows-amd64
+```
+
+E2E 自动完成并清理：临时 PostgreSQL、随机数据库/HTTP 端口、随机管理员/处置员凭据、迁移、健康检查、登录/RBAC、最小 Bell 菜单、规则、合成 Event/Receipt 幂等、Alert、20 路并发 ack、越权/缺参拒绝、close 重放幂等、两条生命周期时间线、冷重启、Windows stop 和日志泄密检查。原始包保持生产配置并先通过审计；业务自动化只把临时包副本切换为 `dev` 测试模式。生产验证码的获取、正确登录、错误及重放拒绝由 #138 的 `Bell/server/tests/bell_production_login/run-postgres.ps1` 覆盖，不暴露或识别验证码答案。
+
+浏览器验收打开脚本输出的临时 `base_url`，检查：
+
+- 匿名访问跳转登录页，并显示验证码输入；测试模式可填写任意非空验证码，生产验证码行为由 #138 回归覆盖；
+- 登录后保留 GoAdmin 侧栏、顶部导航和标签页；
+- 管理员显示 Bell 必要业务菜单，包括预警管理、事件查询、规则配置；处置员仅显示预警处理所需入口；
+- 预警详情可显示关联事件、处理人、现场结果和两条处理时间线；
+- 不显示开发工具、定时任务、系统监控等无关入口。
+
+## 仓库闭环
+
+```powershell
+python dev_scripts/harness.py check --strict
+git diff --check
+git status --short --branch
+```
+
+浏览器人工/工具检查、真实生产数据库、客户网络和长期负载不由 API 单测替代；未执行的项目必须在工单证据中明确说明。

Bell/README-WINDOWS.md

@@ -0,0 +1,59 @@
+# Bell Windows 运行说明
+
+Bell Windows 包包含独立后端、GoAdmin 管理端静态资源和启动、停止、检查脚本。正式运行需要独立 PostgreSQL；包内不提供默认账号、密码、JWT secret 或数据库。
+
+## 配置
+
+编辑 `config\bell.env`：
+
+```text
+BELL_HOST=127.0.0.1
+BELL_PORT=18090
+BELL_WEB_HOST=127.0.0.1
+BELL_WEB_PORT=18091
+BELL_DATABASE_URL=host=127.0.0.1 port=5432 user=bell dbname=bell sslmode=disable
+BELL_JWT_SECRET=<至少 32 字符的独立随机值>
+BELL_BOOTSTRAP_USERNAME=<仅首次迁移使用>
+BELL_BOOTSTRAP_PASSWORD=<仅首次迁移使用，至少 8 字符>
+BELL_AUTO_MIGRATE=true
+BELL_SYNTHETIC_EVENTS_ENABLED=false
+```
+
+不要把真实配置提交到 Git。首次迁移成功后，建议从进程环境中移除 `BELL_BOOTSTRAP_PASSWORD`；它不会写入明文数据库。
+
+## 启动、检查和停止
+
+```bat
+check-bell.bat
+start-bell.bat
+check-bell.bat -Running
+stop-bell.bat
+```
+
+浏览器访问 `http://127.0.0.1:18091/`。`BELL_PORT` 是仅供本机 Web 网关访问的后端端口；`BELL_WEB_PORT` 是用户访问入口。启动脚本默认先执行幂等数据库迁移，再启动后端和 Web 网关；任一步失败都会返回非零退出码。
+
+`stop-bell.bat` 只按包内 PID 文件和启动命令行核对后停止本包进程树，不按端口终止未知进程。运行日志位于 `runtime\logs`，不得包含密码、JWT 或登录 token。
+
+## 构建和包审计
+
+从仓库根目录运行：
+
+```powershell
+Bell\scripts\build\build-windows.bat
+pwsh -NoProfile -File Bell\scripts\build\test-package.ps1 -PackageRoot Bell\dist\bell-windows-amd64
+```
+
+输出：
+
+- `Bell\dist\bell-windows-amd64\`
+- `Bell\dist\bell-windows-amd64.zip`
+
+包内 `VERSION.txt`、`MANIFEST.sha256` 和 `LICENSES\` 分别记录源码提交、工具链、文件摘要、GoAdmin 来源及 MIT 许可证。
+
+## 常见错误
+
+- `BELL_DATABASE_URL is required`：设置独立 PostgreSQL 连接串。
+- `PostgreSQL is unreachable`：启动 PostgreSQL，并检查地址和端口。
+- `BELL_JWT_SECRET must contain...`：生成至少 32 字符、只供 Bell 使用的随机值。
+- `port ... is already in use`：停止已有 Bell，或修改后端/Web 端口。
+- `Bell database migration failed`：检查数据库是否存在、用户权限及迁移日志；不要删除已有 Event、Alert 或生命周期事实。

Bell/README.md

@@ -37,3 +37,12 @@ corepack pnpm@9.15.1 dev
 ```
 
 生产构建使用 `corepack pnpm@9.15.1 build:prod`。生产环境不会生成或接受仓库默认管理员、默认 JWT secret 或默认数据库连接串。
+
+## Windows 交付与独立验收
+
+- Windows 构建：`Bell\scripts\build\build-windows.bat`
+- 包审计：`pwsh -NoProfile -File Bell\scripts\build\test-package.ps1 -PackageRoot Bell\dist\bell-windows-amd64`
+- 隔离 E2E：`pwsh -NoProfile -File Bell\scripts\test-independent-e2e.ps1 -PreparedPackageRoot Bell\dist\bell-windows-amd64`
+- 包内启动、检查和停止：`start-bell.bat`、`check-bell.bat -Running`、`stop-bell.bat`
+
+完整配置、排错和验收标准见 `README-WINDOWS.md` 与 `ACCEPTANCE.md`。隔离 E2E 使用临时 PostgreSQL、随机端口和随机凭据，不启动或调用 Sense、Brain。

Bell/config/bell.env.example

@@ -0,0 +1,11 @@
+# Bell production environment. Copy values into process environment or this file.
+BELL_HOST=127.0.0.1
+BELL_PORT=18090
+BELL_WEB_HOST=127.0.0.1
+BELL_WEB_PORT=18091
+BELL_DATABASE_URL=
+BELL_JWT_SECRET=
+BELL_BOOTSTRAP_USERNAME=
+BELL_BOOTSTRAP_PASSWORD=
+BELL_AUTO_MIGRATE=true
+BELL_SYNTHETIC_EVENTS_ENABLED=false

Bell/scripts/build/assert-web-assets.ps1

@@ -0,0 +1,13 @@
+param([Parameter(Mandatory = $true)][string]$WebRoot)
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$root = [IO.Path]::GetFullPath($WebRoot)
+$index = Join-Path $root 'index.html'
+if (-not (Test-Path -LiteralPath $index -PathType Leaf)) { throw 'web/index.html is missing.' }
+$html = Get-Content -LiteralPath $index -Raw -Encoding UTF8
+$references = [regex]::Matches($html, '(?:src|href)=["''](?<path>/[^"''?#]+)') | ForEach-Object { $_.Groups['path'].Value.TrimStart('/').Replace('/', '\') }
+foreach ($relative in $references | Sort-Object -Unique) {
+    if ($relative -match '^https?:') { continue }
+    if (-not (Test-Path -LiteralPath (Join-Path $root $relative) -PathType Leaf)) { throw "web asset referenced by index.html is missing: $relative" }
+}
+Write-Host "Bell web asset check passed: $root"

Bell/scripts/build/build-windows.bat

@@ -0,0 +1,5 @@
+@echo off
+setlocal
+where pwsh.exe >nul 2>nul
+if %errorlevel% equ 0 (pwsh.exe -NoProfile -File "%~dp0build-windows.ps1" %*) else (powershell.exe -NoProfile -File "%~dp0build-windows.ps1" %*)
+exit /b %errorlevel%

Bell/scripts/build/build-windows.ps1

@@ -0,0 +1,88 @@
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$bellRoot = [IO.Path]::GetFullPath((Join-Path $PSScriptRoot '..\..'))
+$repositoryRoot = Split-Path $bellRoot -Parent
+$serverRoot = Join-Path $bellRoot 'server'
+$uiRoot = Join-Path $bellRoot 'ui'
+$distRoot = Join-Path $bellRoot 'dist'
+$target = Join-Path $distRoot 'bell-windows-amd64'
+$archive = Join-Path $distRoot 'bell-windows-amd64.zip'
+$staging = Join-Path $distRoot ('.bell-windows-amd64.staging-' + $PID)
+
+function Assert-ChildPath([string]$Parent,[string]$Child) {
+    $parentPath = [IO.Path]::GetFullPath($Parent).TrimEnd('\') + '\'
+    $childPath = [IO.Path]::GetFullPath($Child)
+    if (-not $childPath.StartsWith($parentPath,[StringComparison]::OrdinalIgnoreCase)) { throw "Unsafe build path outside $Parent`: $Child" }
+}
+function Get-FileSha256([string]$Path) {
+    $sha = [Security.Cryptography.SHA256]::Create(); $stream = [IO.File]::OpenRead($Path)
+    try { return ([BitConverter]::ToString($sha.ComputeHash($stream))).Replace('-','') } finally { $stream.Dispose(); $sha.Dispose() }
+}
+Assert-ChildPath $bellRoot $distRoot; Assert-ChildPath $distRoot $target; Assert-ChildPath $distRoot $archive; Assert-ChildPath $distRoot $staging
+
+$savedToolchain = $env:GOTOOLCHAIN
+$env:GOTOOLCHAIN = 'go1.26.5'
+try {
+    Push-Location $serverRoot
+    try { $goVersion = (& go env GOVERSION).Trim() } finally { Pop-Location }
+    $nodeVersion = (& node --version).Trim().TrimStart('v')
+    $pnpmVersion = (& corepack pnpm@9.15.1 --version).Trim()
+    if ($goVersion -ne 'go1.26.5') { throw "Go 1.26.5 is required; found $goVersion." }
+    if ($nodeVersion -ne '22.22.1') { throw "Node 22.22.1 is required; found $nodeVersion." }
+    if ($pnpmVersion -ne '9.15.1') { throw "pnpm 9.15.1 is required; found $pnpmVersion." }
+
+    New-Item -ItemType Directory -Force -Path $distRoot | Out-Null
+    if (Test-Path -LiteralPath $staging) { Remove-Item -LiteralPath $staging -Recurse -Force }
+    New-Item -ItemType Directory -Path $staging | Out-Null
+    Push-Location $uiRoot
+    try {
+        & corepack pnpm@9.15.1 install --frozen-lockfile
+        if ($LASTEXITCODE -ne 0) { throw 'pnpm install failed.' }
+        & corepack pnpm@9.15.1 run build:prod
+        if ($LASTEXITCODE -ne 0) { throw 'Bell UI production build failed.' }
+        # The frozen Vue CLI differential build references a module runtime
+        # that ScriptExt removes from disk. The complete legacy bundle is
+        # present, so make that reproducible bundle the package entry point.
+        $builtIndex = Join-Path $uiRoot 'dist\index.html'
+        $html = Get-Content -LiteralPath $builtIndex -Raw -Encoding UTF8
+        $html = [regex]::Replace($html, '<script[^>]+type="module"[^>]*></script>', '')
+        $html = $html.Replace(' nomodule', '')
+        [IO.File]::WriteAllText($builtIndex, $html, (New-Object Text.UTF8Encoding($false)))
+    } finally { Pop-Location }
+
+    $oldGOOS,$oldGOARCH,$oldCGO = $env:GOOS,$env:GOARCH,$env:CGO_ENABLED
+    try {
+        $env:GOOS='windows'; $env:GOARCH='amd64'; $env:CGO_ENABLED='0'
+        Push-Location $serverRoot
+        try { & go build -trimpath -ldflags '-s -w' -o (Join-Path $staging 'bell.exe') .; if ($LASTEXITCODE -ne 0) { throw 'Bell server Windows build failed.' } } finally { Pop-Location }
+    } finally { $env:GOOS,$env:GOARCH,$env:CGO_ENABLED=$oldGOOS,$oldGOARCH,$oldCGO }
+
+    Copy-Item -LiteralPath (Join-Path $uiRoot 'dist') -Destination (Join-Path $staging 'web') -Recurse
+    New-Item -ItemType Directory -Path (Join-Path $staging 'scripts\runtime'),(Join-Path $staging 'config'),(Join-Path $staging 'LICENSES') | Out-Null
+    Copy-Item -Path (Join-Path $bellRoot 'scripts\runtime\*.ps1') -Destination (Join-Path $staging 'scripts\runtime')
+    foreach ($name in @('start-bell','stop-bell','check-bell')) { Copy-Item -LiteralPath (Join-Path $bellRoot "scripts\runtime\$name.bat") -Destination (Join-Path $staging "$name.bat") }
+    Copy-Item -LiteralPath (Join-Path $bellRoot 'config\bell.env.example') -Destination (Join-Path $staging 'config\bell.env.example')
+    Copy-Item -LiteralPath (Join-Path $bellRoot 'config\bell.env.example') -Destination (Join-Path $staging 'config\bell.env')
+    Copy-Item -LiteralPath (Join-Path $serverRoot 'config\settings.yml') -Destination (Join-Path $staging 'config\settings.yml')
+    Copy-Item -LiteralPath (Join-Path $serverRoot 'config\db.sql') -Destination (Join-Path $staging 'config\db.sql')
+    Copy-Item -LiteralPath (Join-Path $serverRoot 'config\pg.sql') -Destination (Join-Path $staging 'config\pg.sql')
+    Copy-Item -LiteralPath (Join-Path $bellRoot 'README-WINDOWS.md') -Destination (Join-Path $staging 'README-WINDOWS.md')
+    Copy-Item -LiteralPath (Join-Path $bellRoot 'LICENSES') -Destination $staging -Recurse -Force
+    Copy-Item -LiteralPath (Join-Path $serverRoot 'LICENSE.md') -Destination (Join-Path $staging 'LICENSES\Bell-server-LICENSE.md')
+    Copy-Item -LiteralPath (Join-Path $uiRoot 'LICENSE') -Destination (Join-Path $staging 'LICENSES\Bell-ui-LICENSE')
+    $commit = (& git -C $repositoryRoot rev-parse HEAD).Trim()
+    [IO.File]::WriteAllLines((Join-Path $staging 'VERSION.txt'),@("source_commit=$commit",'go=1.26.5','node=22.22.1','pnpm=9.15.1'),(New-Object Text.UTF8Encoding($false)))
+    & (Join-Path $PSScriptRoot 'test-package.ps1') -PackageRoot $staging
+    if ($LASTEXITCODE -ne 0) { throw 'Bell package audit failed.' }
+    $manifest = foreach ($file in Get-ChildItem -LiteralPath $staging -Recurse -File | Sort-Object FullName) { "$(Get-FileSha256 $file.FullName)  $($file.FullName.Substring($staging.Length+1).Replace('\','/'))" }
+    [IO.File]::WriteAllLines((Join-Path $staging 'MANIFEST.sha256'),$manifest,(New-Object Text.UTF8Encoding($false)))
+    if (Test-Path -LiteralPath $target) { Remove-Item -LiteralPath $target -Recurse -Force }
+    Move-Item -LiteralPath $staging -Destination $target
+    if (Test-Path -LiteralPath $archive) { Remove-Item -LiteralPath $archive -Force }
+    Compress-Archive -LiteralPath $target -DestinationPath $archive -CompressionLevel Optimal
+    Write-Host "Bell Windows package: $target"
+    Write-Host "Bell Windows archive: $archive"
+} finally {
+    $env:GOTOOLCHAIN = $savedToolchain
+    if (Test-Path -LiteralPath $staging) { Remove-Item -LiteralPath $staging -Recurse -Force }
+}

Bell/scripts/build/test-package.ps1

@@ -0,0 +1,34 @@
+param([Parameter(Mandatory = $true)][string]$PackageRoot)
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$root = [IO.Path]::GetFullPath($PackageRoot)
+if (-not (Test-Path -LiteralPath $root -PathType Container)) { throw "Package directory not found: $root" }
+$required = @(
+    'bell.exe','start-bell.bat','stop-bell.bat','check-bell.bat','README-WINDOWS.md',
+    'config\bell.env','config\bell.env.example','config\settings.yml','config\db.sql','config\pg.sql','web\index.html',
+    'scripts\runtime\bell-common.ps1','scripts\runtime\bell-web.ps1',
+    'LICENSES\SOURCES.md','LICENSES\go-admin-LICENSE.md','LICENSES\go-admin-ui-LICENSE',
+    'VERSION.txt'
+)
+foreach ($relative in $required) { if (-not (Test-Path -LiteralPath (Join-Path $root $relative))) { throw "Package is missing required path: $relative" } }
+& (Join-Path $PSScriptRoot 'assert-web-assets.ps1') -WebRoot (Join-Path $root 'web')
+$forbiddenDirectories = Get-ChildItem -LiteralPath $root -Recurse -Directory | Where-Object { $_.Name -in @('node_modules','.git','dist','.cache') }
+if ($forbiddenDirectories) { throw "Package contains forbidden build directory: $($forbiddenDirectories[0].FullName)" }
+$forbiddenFiles = Get-ChildItem -LiteralPath $root -Recurse -File | Where-Object { $_.Extension -in @('.db','.sqlite','.sqlite3','.dump','.bak') }
+if ($forbiddenFiles) { throw "Package contains database or backup data: $($forbiddenFiles[0].FullName)" }
+$config = Get-Content -LiteralPath (Join-Path $root 'config\bell.env') -Raw -Encoding UTF8
+foreach ($secret in @('BELL_DATABASE_URL','BELL_JWT_SECRET','BELL_BOOTSTRAP_USERNAME','BELL_BOOTSTRAP_PASSWORD')) {
+    if ($config -match "(?m)^$secret[ \t]*=[ \t]*[^ \t\r\n]") { throw "Package contains a non-empty credential field: $secret" }
+}
+$sources = Get-Content -LiteralPath (Join-Path $root 'LICENSES\SOURCES.md') -Raw -Encoding UTF8
+foreach ($commit in @('f06540883b41d03782bb6b2c4150f298f328c6b6','67d393d713877572fab0b897296a4c1d525fc81d','424855aacf6905f3fde860c3331385cb25529a0d')) {
+    if (-not $sources.Contains($commit)) { throw "Package source evidence is missing commit $commit" }
+}
+$version = Get-Content -LiteralPath (Join-Path $root 'VERSION.txt') -Raw -Encoding UTF8
+foreach ($entry in @('go=1.26.5','node=22.22.1','pnpm=9.15.1')) { if (-not $version.Contains($entry)) { throw "Package version evidence is missing $entry" } }
+$textExtensions = @('.md','.txt','.env','.example','.ps1','.bat','.yml','.yaml','.json','.html','.js','.css')
+foreach ($file in Get-ChildItem -LiteralPath $root -Recurse -File | Where-Object { $textExtensions -contains $_.Extension.ToLowerInvariant() }) {
+    $content = [string](Get-Content -LiteralPath $file.FullName -Raw -ErrorAction SilentlyContinue)
+    if ($content -match '(?i)(admin123|password123|BEGIN (RSA |EC |OPENSSH )?PRIVATE KEY)') { throw "Package contains a forbidden default credential or private key marker: $($file.FullName)" }
+}
+Write-Host "Bell package audit passed: $root"

Bell/scripts/runtime/bell-common.ps1

@@ -0,0 +1,117 @@
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+
+$script:BellAllowedEnvironment = @(
+    'BELL_HOST', 'BELL_PORT', 'BELL_WEB_HOST', 'BELL_WEB_PORT',
+    'BELL_DATABASE_URL', 'BELL_JWT_SECRET', 'BELL_BOOTSTRAP_USERNAME',
+    'BELL_BOOTSTRAP_PASSWORD', 'BELL_AUTO_MIGRATE',
+    'BELL_SYNTHETIC_EVENTS_ENABLED'
+)
+
+function Get-BellPackageRoot {
+    param([string]$ScriptDirectory = $PSScriptRoot)
+    return [IO.Path]::GetFullPath((Join-Path $ScriptDirectory '..\..'))
+}
+function Import-BellEnvironment {
+    param([Parameter(Mandatory = $true)][string]$Path)
+    if (-not (Test-Path -LiteralPath $Path -PathType Leaf)) { throw "Bell configuration file not found: $Path" }
+    $lineNumber = 0
+    foreach ($rawLine in Get-Content -LiteralPath $Path -Encoding UTF8) {
+        $lineNumber++
+        $line = $rawLine.Trim()
+        if ($line.Length -eq 0 -or $line.StartsWith('#')) { continue }
+        $separator = $line.IndexOf('=')
+        if ($separator -lt 1) { throw "Invalid Bell configuration at line $lineNumber. Expected NAME=value." }
+        $name = $line.Substring(0, $separator).Trim()
+        if ($script:BellAllowedEnvironment -notcontains $name) { throw "Unsupported Bell configuration key at line ${lineNumber}: $name" }
+        $value = $line.Substring($separator + 1)
+        if ($value.Length -ge 2) {
+            $first, $last = $value[0], $value[$value.Length - 1]
+            if (($first -eq '"' -and $last -eq '"') -or ($first -eq "'" -and $last -eq "'")) { $value = $value.Substring(1, $value.Length - 2) }
+        }
+        if ([string]::IsNullOrWhiteSpace([Environment]::GetEnvironmentVariable($name, 'Process'))) {
+            [Environment]::SetEnvironmentVariable($name, $value, 'Process')
+        }
+    }
+}
+
+function Get-BellEnvironmentValue {
+    param([Parameter(Mandatory = $true)][string]$Name, [string]$Default = '')
+    $value = [Environment]::GetEnvironmentVariable($Name, 'Process')
+    if ([string]::IsNullOrWhiteSpace($value)) { return $Default }
+    return $value
+}
+
+function Test-BellTcpEndpoint {
+    param([Parameter(Mandatory = $true)][string]$HostName, [Parameter(Mandatory = $true)][int]$Port, [int]$TimeoutMilliseconds = 2000)
+    $client = [Net.Sockets.TcpClient]::new()
+    try { return $client.ConnectAsync($HostName, $Port).Wait($TimeoutMilliseconds) -and $client.Connected } catch { return $false } finally { $client.Dispose() }
+}
+
+function Test-BellListenPortAvailable {
+    param([Parameter(Mandatory = $true)][string]$HostName, [Parameter(Mandatory = $true)][int]$Port)
+    $ip = if ($HostName -eq '0.0.0.0') { [Net.IPAddress]::Any } elseif ($HostName -in @('127.0.0.1', 'localhost')) { [Net.IPAddress]::Loopback } else { [Net.IPAddress]::Parse($HostName) }
+    $listener = [Net.Sockets.TcpListener]::new($ip, $Port)
+    try { $listener.Start(); return $true } catch { return $false } finally { try { $listener.Stop() } catch {} }
+}
+
+function Get-BellDatabaseEndpoint {
+    param([Parameter(Mandatory = $true)][string]$Connection)
+    if ($Connection -match '^postgres(?:ql)?://') {
+        $uri = [Uri]$Connection
+        return [pscustomobject]@{ Host = $uri.Host; Port = $(if ($uri.IsDefaultPort) { 5432 } else { $uri.Port }); Database = $uri.AbsolutePath.TrimStart('/') }
+    }
+    $values = @{}
+    foreach ($match in [regex]::Matches($Connection, '(?:^|\s)(?<key>[A-Za-z_][A-Za-z0-9_]*)=(?<value>''(?:[^'']|'''')*''|"(?:[^"]|"")*"|[^\s]+)')) {
+        $value = $match.Groups['value'].Value.Trim("'", '"')
+        $values[$match.Groups['key'].Value.ToLowerInvariant()] = $value
+    }
+    if ($values.Count -eq 0) { throw 'BELL_DATABASE_URL must be a PostgreSQL URI or keyword connection string.' }
+    return [pscustomobject]@{ Host = $(if ($values.host) { $values.host } else { '127.0.0.1' }); Port = $(if ($values.port) { [int]$values.port } else { 5432 }); Database = [string]$values.dbname }
+}
+
+function Get-BellPort {
+    param([string]$Name, [int]$Default)
+    $text = Get-BellEnvironmentValue -Name $Name -Default $Default.ToString()
+    $port = 0
+    if (-not [int]::TryParse($text, [ref]$port) -or $port -lt 1 -or $port -gt 65535) { throw "$Name must be an integer between 1 and 65535." }
+    return $port
+}
+
+function Initialize-BellRuntime {
+    param([Parameter(Mandatory = $true)][string]$PackageRoot, [switch]$AllowOccupiedPorts)
+    Import-BellEnvironment -Path (Join-Path $PackageRoot 'config\bell.env')
+    $hostName = Get-BellEnvironmentValue -Name 'BELL_HOST' -Default '127.0.0.1'
+    $webHost = Get-BellEnvironmentValue -Name 'BELL_WEB_HOST' -Default '127.0.0.1'
+    if ($hostName -notin @('127.0.0.1', 'localhost') -or $webHost -notin @('127.0.0.1', 'localhost')) { throw 'BELL_HOST and BELL_WEB_HOST must be loopback addresses.' }
+    $port = Get-BellPort -Name 'BELL_PORT' -Default 18090
+    $webPort = Get-BellPort -Name 'BELL_WEB_PORT' -Default 18091
+    if ($port -eq $webPort) { throw 'BELL_PORT and BELL_WEB_PORT must be different.' }
+    if (-not $AllowOccupiedPorts) {
+        if (-not (Test-BellListenPortAvailable -HostName $hostName -Port $port)) { throw "Bell backend port $hostName`:$port is already in use." }
+        if (-not (Test-BellListenPortAvailable -HostName $webHost -Port $webPort)) { throw "Bell web port $webHost`:$webPort is already in use." }
+    }
+    $databaseURL = Get-BellEnvironmentValue -Name 'BELL_DATABASE_URL'
+    if ([string]::IsNullOrWhiteSpace($databaseURL)) { throw 'BELL_DATABASE_URL is required.' }
+    $database = Get-BellDatabaseEndpoint -Connection $databaseURL
+    if ([string]::IsNullOrWhiteSpace($database.Database)) { throw 'BELL_DATABASE_URL must name a database.' }
+    if (-not (Test-BellTcpEndpoint -HostName $database.Host -Port $database.Port)) { throw "PostgreSQL is unreachable at $($database.Host):$($database.Port)." }
+    $jwt = Get-BellEnvironmentValue -Name 'BELL_JWT_SECRET'
+    if ($jwt.Length -lt 32 -or $jwt.StartsWith('__BELL_')) { throw 'BELL_JWT_SECRET must contain at least 32 non-default characters.' }
+    $webRoot = Join-Path $PackageRoot 'web'
+    if (-not (Test-Path -LiteralPath (Join-Path $webRoot 'index.html') -PathType Leaf)) { throw "Bell web assets are missing: $webRoot" }
+    return [pscustomobject]@{
+        Host = $hostName; Port = $port; WebHost = $webHost; WebPort = $webPort;
+        BackendUrl = "http://$hostName`:$port"; WebUrl = "http://$webHost`:$webPort";
+        SettingsPath = (Join-Path $PackageRoot 'config\settings.yml'); WebRoot = $webRoot
+    }
+}
+
+function Wait-BellHealth {
+    param([Parameter(Mandatory = $true)][string]$BaseUrl, [int]$Attempts = 100)
+    for ($attempt = 0; $attempt -lt $Attempts; $attempt++) {
+        try { $health = Invoke-RestMethod -Uri "$BaseUrl/healthz" -TimeoutSec 2 -NoProxy; if ($health.status -eq 'ok' -and $health.service -eq 'bell') { return } } catch {}
+        Start-Sleep -Milliseconds 300
+    }
+    throw "Bell health check timed out: $BaseUrl/healthz"
+}

Bell/scripts/runtime/bell-web.ps1

@@ -0,0 +1,72 @@
+param(
+    [Parameter(Mandatory = $true)][string]$WebRoot,
+    [Parameter(Mandatory = $true)][string]$ListenHost,
+    [Parameter(Mandatory = $true)][int]$ListenPort,
+    [Parameter(Mandatory = $true)][string]$BackendUrl
+)
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+
+$root = [IO.Path]::GetFullPath($WebRoot).TrimEnd('\') + '\'
+$listener = [Net.HttpListener]::new()
+$listener.Prefixes.Add("http://$ListenHost`:$ListenPort/")
+$handler = [Net.Http.HttpClientHandler]::new()
+$handler.UseProxy = $false
+$client = [Net.Http.HttpClient]::new($handler)
+$mime = @{ '.html'='text/html; charset=utf-8'; '.js'='application/javascript; charset=utf-8'; '.css'='text/css; charset=utf-8'; '.json'='application/json; charset=utf-8'; '.svg'='image/svg+xml'; '.png'='image/png'; '.jpg'='image/jpeg'; '.jpeg'='image/jpeg'; '.gif'='image/gif'; '.ico'='image/x-icon'; '.woff'='font/woff'; '.woff2'='font/woff2'; '.ttf'='font/ttf'; '.eot'='application/vnd.ms-fontobject' }
+
+try {
+    $listener.Start()
+    Write-Host "Bell web listening at http://$ListenHost`:$ListenPort/"
+    while ($listener.IsListening) {
+        $context = $listener.GetContext()
+        try {
+            $request = $context.Request
+            $response = $context.Response
+            $path = $request.Url.AbsolutePath
+            if ($path -eq '/healthz' -or $path.StartsWith('/api/')) {
+                $target = "$BackendUrl$($request.Url.PathAndQuery)"
+                $message = [Net.Http.HttpRequestMessage]::new([Net.Http.HttpMethod]::new($request.HttpMethod), $target)
+                if ($request.HasEntityBody) {
+                    $memory = [IO.MemoryStream]::new()
+                    $request.InputStream.CopyTo($memory)
+                    $message.Content = [Net.Http.ByteArrayContent]::new($memory.ToArray())
+                    $memory.Dispose()
+                }
+                foreach ($key in $request.Headers.AllKeys) {
+                    if ($key -in @('Host','Content-Length')) { continue }
+                    $values = $request.Headers.GetValues($key)
+                    if (-not $message.Headers.TryAddWithoutValidation($key, $values) -and $null -ne $message.Content) { [void]$message.Content.Headers.TryAddWithoutValidation($key, $values) }
+                }
+                $upstream = $client.SendAsync($message).GetAwaiter().GetResult()
+                $bytes = $upstream.Content.ReadAsByteArrayAsync().GetAwaiter().GetResult()
+                $response.StatusCode = [int]$upstream.StatusCode
+                if ($upstream.Content.Headers.ContentType) { $response.ContentType = $upstream.Content.Headers.ContentType.ToString() }
+                $response.ContentLength64 = $bytes.Length
+                $response.OutputStream.Write($bytes, 0, $bytes.Length)
+                $message.Dispose(); $upstream.Dispose()
+            } else {
+                $relative = [Uri]::UnescapeDataString($path.TrimStart('/')).Replace('/', '\')
+                if ([string]::IsNullOrWhiteSpace($relative)) { $relative = 'index.html' }
+                $file = [IO.Path]::GetFullPath((Join-Path $root $relative))
+                if (-not $file.StartsWith($root, [StringComparison]::OrdinalIgnoreCase)) { $response.StatusCode = 403 }
+                elseif (-not (Test-Path -LiteralPath $file -PathType Leaf)) {
+                    $file = Join-Path $root 'index.html'
+                }
+                if ($response.StatusCode -ne 403) {
+                    $bytes = [IO.File]::ReadAllBytes($file)
+                    $extension = [IO.Path]::GetExtension($file).ToLowerInvariant()
+                    $response.ContentType = $(if ($mime.ContainsKey($extension)) { $mime[$extension] } else { 'application/octet-stream' })
+                    $response.ContentLength64 = $bytes.Length
+                    $response.OutputStream.Write($bytes, 0, $bytes.Length)
+                }
+            }
+        } catch {
+            try { $context.Response.StatusCode = 502; $bytes = [Text.Encoding]::UTF8.GetBytes('Bell web gateway error'); $context.Response.ContentLength64 = $bytes.Length; $context.Response.OutputStream.Write($bytes,0,$bytes.Length) } catch {}
+        } finally {
+            try { $context.Response.OutputStream.Close() } catch {}
+        }
+    }
+} finally {
+    $client.Dispose(); $handler.Dispose(); try { $listener.Stop() } catch {}; $listener.Close()
+}

Bell/scripts/runtime/check-bell.bat

@@ -0,0 +1,5 @@
+@echo off
+setlocal
+where pwsh.exe >nul 2>nul
+if %errorlevel% equ 0 (pwsh.exe -NoProfile -File "%~dp0scripts\runtime\check-bell.ps1" %*) else (powershell.exe -NoProfile -File "%~dp0scripts\runtime\check-bell.ps1" %*)
+exit /b %errorlevel%

Bell/scripts/runtime/check-bell.ps1

@@ -0,0 +1,12 @@
+param([switch]$Running)
+. (Join-Path $PSScriptRoot 'bell-common.ps1')
+try {
+    $root = Get-BellPackageRoot
+    $state = Initialize-BellRuntime -PackageRoot $root -AllowOccupiedPorts:$Running
+    if ($Running) {
+        Wait-BellHealth -BaseUrl $state.BackendUrl -Attempts 2
+        Wait-BellHealth -BaseUrl $state.WebUrl -Attempts 2
+    }
+    Write-Host "Bell configuration check passed. PostgreSQL reachable; backend=$($state.BackendUrl); web=$($state.WebUrl)."
+    exit 0
+} catch { Write-Error $_.Exception.Message; exit 1 }

Bell/scripts/runtime/start-bell.bat

@@ -0,0 +1,5 @@
+@echo off
+setlocal
+where pwsh.exe >nul 2>nul
+if %errorlevel% equ 0 (pwsh.exe -NoProfile -File "%~dp0scripts\runtime\start-bell.ps1" %*) else (powershell.exe -NoProfile -File "%~dp0scripts\runtime\start-bell.ps1" %*)
+exit /b %errorlevel%

Bell/scripts/runtime/start-bell.ps1

@@ -0,0 +1,41 @@
+param([switch]$SkipMigration)
+. (Join-Path $PSScriptRoot 'bell-common.ps1')
+
+$backend = $null
+$pidFile = $null
+try {
+    $root = Get-BellPackageRoot
+    $state = Initialize-BellRuntime -PackageRoot $root
+    $bell = Join-Path $root 'bell.exe'
+    if (-not (Test-Path -LiteralPath $bell -PathType Leaf)) { throw "Bell executable not found: $bell" }
+    $runtime = Join-Path $root 'runtime'
+    $logs = Join-Path $runtime 'logs'
+    New-Item -ItemType Directory -Force -Path $logs,(Join-Path $root 'temp\logs') | Out-Null
+    $pidFile = Join-Path $runtime 'bell.pid'
+    if (Test-Path -LiteralPath $pidFile) {
+        $oldPid = 0
+        if ([int]::TryParse((Get-Content -LiteralPath $pidFile -Raw).Trim(), [ref]$oldPid) -and (Get-Process -Id $oldPid -ErrorAction SilentlyContinue)) { throw "Bell appears to be running with process id $oldPid." }
+        Remove-Item -LiteralPath $pidFile -Force
+    }
+    [IO.File]::WriteAllText($pidFile, "$PID", (New-Object Text.UTF8Encoding($false)))
+    Push-Location $root
+    try {
+        $autoMigrate = (Get-BellEnvironmentValue -Name 'BELL_AUTO_MIGRATE' -Default 'true').ToLowerInvariant()
+        if (-not $SkipMigration -and $autoMigrate -notin @('false','0','no')) {
+            Write-Host 'Applying pending Bell database migrations...'
+            & $bell migrate -c $state.SettingsPath
+            if ($LASTEXITCODE -ne 0) { throw 'Bell database migration failed.' }
+        }
+        $backend = Start-Process -FilePath $bell -ArgumentList @('server','-c',$state.SettingsPath) -WorkingDirectory $root -RedirectStandardOutput (Join-Path $logs 'bell.out.log') -RedirectStandardError (Join-Path $logs 'bell.err.log') -WindowStyle Hidden -PassThru
+        Wait-BellHealth -BaseUrl $state.BackendUrl
+        Write-Host "Bell is available at $($state.WebUrl)/"
+        Write-Host 'Press Ctrl+C in this window or run stop-bell.bat to stop Bell.'
+        & (Join-Path $PSScriptRoot 'bell-web.ps1') -WebRoot $state.WebRoot -ListenHost $state.WebHost -ListenPort $state.WebPort -BackendUrl $state.BackendUrl
+    } finally { Pop-Location }
+} catch {
+    Write-Error $_.Exception.Message
+    exit 1
+} finally {
+    if ($backend -and -not $backend.HasExited) { & taskkill.exe /PID $backend.Id /T /F 2>$null | Out-Null }
+    if ($pidFile -and (Test-Path -LiteralPath $pidFile)) { Remove-Item -LiteralPath $pidFile -Force }
+}

Bell/scripts/runtime/stop-bell.bat

@@ -0,0 +1,5 @@
+@echo off
+setlocal
+where pwsh.exe >nul 2>nul
+if %errorlevel% equ 0 (pwsh.exe -NoProfile -File "%~dp0scripts\runtime\stop-bell.ps1" %*) else (powershell.exe -NoProfile -File "%~dp0scripts\runtime\stop-bell.ps1" %*)
+exit /b %errorlevel%

Bell/scripts/runtime/stop-bell.ps1

@@ -0,0 +1,17 @@
+. (Join-Path $PSScriptRoot 'bell-common.ps1')
+try {
+    $root = Get-BellPackageRoot
+    $pidFile = Join-Path $root 'runtime\bell.pid'
+    if (-not (Test-Path -LiteralPath $pidFile -PathType Leaf)) { Write-Host 'Bell is not running (no pid file).'; exit 0 }
+    $processId = 0
+    if (-not [int]::TryParse((Get-Content -LiteralPath $pidFile -Raw).Trim(), [ref]$processId)) { throw 'Bell pid file is invalid.' }
+    $process = Get-CimInstance Win32_Process -Filter "ProcessId = $processId" -ErrorAction SilentlyContinue
+    if (-not $process) { Remove-Item -LiteralPath $pidFile -Force; Write-Host 'Removed stale Bell pid file.'; exit 0 }
+    $rootPattern = [regex]::Escape($root)
+    if ($process.Name -notmatch '^(pwsh|powershell)\.exe$' -or $process.CommandLine -notmatch 'start-bell\.ps1' -or $process.CommandLine -notmatch $rootPattern) { throw "Process $processId is not the Bell package launcher; it was not stopped." }
+    & taskkill.exe /PID $processId /T /F | Out-Null
+    if ($LASTEXITCODE -ne 0) { throw 'Failed to stop the Bell process tree.' }
+    Remove-Item -LiteralPath $pidFile -Force -ErrorAction SilentlyContinue
+    Write-Host 'Bell backend and web process tree stopped.'
+    exit 0
+} catch { Write-Error $_.Exception.Message; exit 1 }

Bell/scripts/test-event-synthetic.ps1

@@ -0,0 +1,190 @@
+[CmdletBinding()]
+param(
+    [string]$PostgresBin = 'D:\pgsql17\bin'
+)
+
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$server = $null
+$pgStarted = $false
+$testRoot = Join-Path ([IO.Path]::GetTempPath()) ('yovision-bell-131-' + [guid]::NewGuid().ToString('N'))
+$pgData = Join-Path $testRoot 'postgres'
+$pgLog = Join-Path $testRoot 'postgres.log'
+$pgCtlOut = Join-Path $testRoot 'pg-ctl.out.log'
+$pgCtlErr = Join-Path $testRoot 'pg-ctl.err.log'
+$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 '..\server')).Path
+
+function Get-FreeTcpPort {
+    $listener = [Net.Sockets.TcpListener]::new([Net.IPAddress]::Loopback, 0)
+    try {
+        $listener.Start()
+        return ([Net.IPEndPoint]$listener.LocalEndpoint).Port
+    } finally {
+        $listener.Stop()
+    }
+}
+
+function Wait-Tcp([int]$Port, [bool]$Open, [int]$Attempts = 120) {
+    for ($attempt = 0; $attempt -lt $Attempts; $attempt++) {
+        $client = [Net.Sockets.TcpClient]::new()
+        try {
+            $connected = $client.ConnectAsync('127.0.0.1', $Port).Wait(250) -and $client.Connected
+        } catch {
+            $connected = $false
+        } finally {
+            $client.Dispose()
+        }
+        if ($connected -eq $Open) { return }
+        Start-Sleep -Milliseconds 250
+    }
+    throw "TCP port $Port did not reach open=$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' -and $health.service -eq 'bell') { return }
+        } catch {}
+        Start-Sleep -Milliseconds 300
+    }
+    throw 'Bell health endpoint did not become ready'
+}
+
+function Start-Bell([string]$BaseUrl, [string]$Config = 'config/settings.demo.yml') {
+    $script:server = Start-Process -FilePath $serverExe -ArgumentList @('server', '-c', $Config) -WorkingDirectory $serverRoot -RedirectStandardOutput $serverOut -RedirectStandardError $serverErr -WindowStyle Hidden -PassThru
+    Wait-Health $BaseUrl
+}
+
+function Stop-Bell {
+    if ($null -ne $script:server -and -not $script:server.HasExited) {
+        Stop-Process -Id $script:server.Id -Force
+        $script:server.WaitForExit(5000) | Out-Null
+    }
+    $script:server = $null
+}
+
+New-Item -ItemType Directory -Path $testRoot | Out-Null
+$pgPort = Get-FreeTcpPort
+$bellPort = Get-FreeTcpPort
+$baseUrl = "http://127.0.0.1:$bellPort"
+$database = 'bell_131'
+$adminPassword = [guid]::NewGuid().ToString('N')
+
+try {
+    foreach ($required in @('initdb.exe', 'pg_ctl.exe', 'createdb.exe', 'psql.exe')) {
+        $path = Join-Path $PostgresBin $required
+        if (-not (Test-Path -LiteralPath $path -PathType Leaf)) { throw "Missing PostgreSQL tool: $path" }
+    }
+
+    & (Join-Path $PostgresBin 'initdb.exe') -D $pgData -U postgres -A trust --encoding=UTF8 --no-locale | Out-Null
+    if ($LASTEXITCODE -ne 0) { throw 'isolated PostgreSQL initdb failed' }
+    $pgArguments = "-D `"$pgData`" -l `"$pgLog`" -o `"-p $pgPort -h 127.0.0.1`" start"
+    Start-Process -FilePath (Join-Path $PostgresBin 'pg_ctl.exe') -ArgumentList $pgArguments -RedirectStandardOutput $pgCtlOut -RedirectStandardError $pgCtlErr -WindowStyle Hidden | Out-Null
+    Wait-Tcp -Port $pgPort -Open $true
+    $pgStarted = $true
+    & (Join-Path $PostgresBin 'createdb.exe') -h 127.0.0.1 -p $pgPort -U postgres $database
+    if ($LASTEXITCODE -ne 0) { throw 'isolated Bell database creation failed' }
+
+    $env:GOTOOLCHAIN = 'go1.26.5'
+    $env:BELL_DATABASE_URL = "host=127.0.0.1 port=$pgPort user=postgres dbname=$database sslmode=disable"
+    $env:BELL_JWT_SECRET = [guid]::NewGuid().ToString('N') + [guid]::NewGuid().ToString('N')
+    $env:BELL_BOOTSTRAP_USERNAME = 'bell_131_admin'
+    $env:BELL_BOOTSTRAP_PASSWORD = $adminPassword
+    $env:BELL_HOST = '127.0.0.1'
+    $env:BELL_PORT = $bellPort.ToString()
+    $env:BELL_SYNTHETIC_EVENTS_ENABLED = 'true'
+
+    Push-Location $serverRoot
+    try {
+        go run . migrate -c config/settings.demo.yml *> (Join-Path $testRoot 'migrate.log')
+        if ($LASTEXITCODE -ne 0) { throw 'Bell migration failed' }
+        go build -o $serverExe .
+        if ($LASTEXITCODE -ne 0) { throw 'Bell build failed' }
+    } finally {
+        Pop-Location
+    }
+
+    Start-Bell $baseUrl
+    $unauthorized = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/synthetic-events" -ContentType 'application/json' -Body '{}' -TimeoutSec 5 -NoProxy
+    if ([int]$unauthorized.code -ne 401) { throw "unauthenticated request returned code $($unauthorized.code)" }
+
+    $loginBody = @{ username = 'bell_131_admin'; password = $adminPassword; code = '0'; uuid = '0' } | ConvertTo-Json -Compress
+    $login = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/login" -ContentType 'application/json' -Body $loginBody -TimeoutSec 5 -NoProxy
+    if ([int]$login.code -ne 200 -or [string]::IsNullOrWhiteSpace($login.token)) { throw 'Bell login failed' }
+    $headers = @{ Authorization = "Bearer $($login.token)" }
+
+    $occurredAt = '2026-08-29T00:00:00Z'
+    $eventBody = @{
+        sourceEventId = 'acceptance-001'; eventType = 'danger_area_entered'; occurredAt = $occurredAt
+        location = '东门'; severity = 'high'; evidenceRef = 'evidence/acceptance-001'
+        attributes = @{ rule = 'area-01'; target = 'anonymous' }
+    } | ConvertTo-Json -Depth 6 -Compress
+    $created = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/synthetic-events" -Headers $headers -ContentType 'application/json; charset=utf-8' -Body $eventBody -TimeoutSec 10 -NoProxy
+    if ([int]$created.code -ne 200 -or $created.data.duplicate -ne $false) { throw 'first synthetic event was not accepted as new' }
+    $eventId = [string]$created.data.event.id
+    $receiptId = [string]$created.data.receipt.id
+    if ([string]::IsNullOrWhiteSpace($eventId) -or [string]::IsNullOrWhiteSpace($receiptId)) { throw 'event or receipt id missing' }
+
+    $replay = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/synthetic-events" -Headers $headers -ContentType 'application/json; charset=utf-8' -Body $eventBody -TimeoutSec 10 -NoProxy
+    if ([int]$replay.code -ne 200 -or $replay.data.duplicate -ne $true -or $replay.data.event.id -ne $eventId) { throw 'idempotent replay failed' }
+
+    $concurrentBody = @{
+        sourceEventId = 'acceptance-concurrent'; eventType = 'danger_area_entered'; occurredAt = $occurredAt
+        location = '西门'; severity = 'medium'; evidenceRef = 'evidence/acceptance-concurrent'
+        attributes = @{ rule = 'area-02'; target = 'anonymous' }
+    } | ConvertTo-Json -Depth 6 -Compress
+    $authHeader = [string]$headers.Authorization
+    $concurrent = 1..12 | ForEach-Object -Parallel {
+        $requestHeaders = @{ Authorization = $using:authHeader }
+        Invoke-RestMethod -Method Post -Uri "$using:baseUrl/api/v1/bell/synthetic-events" -Headers $requestHeaders -ContentType 'application/json; charset=utf-8' -Body $using:concurrentBody -TimeoutSec 20 -NoProxy
+    } -ThrottleLimit 12
+    $concurrentIds = @($concurrent | ForEach-Object { [string]$_.data.event.id } | Sort-Object -Unique)
+    $newCount = @($concurrent | Where-Object { $_.data.duplicate -eq $false }).Count
+    if ($concurrent.Count -ne 12 -or $concurrentIds.Count -ne 1 -or $newCount -ne 1) { throw 'concurrent idempotency did not converge to one Event' }
+
+    $conflictObject = $eventBody | ConvertFrom-Json
+    $conflictObject.severity = 'critical'
+    $conflict = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/synthetic-events" -Headers $headers -ContentType 'application/json; charset=utf-8' -Body ($conflictObject | ConvertTo-Json -Depth 6 -Compress) -TimeoutSec 10 -NoProxy
+    if ([int]$conflict.code -ne 409) { throw "idempotency conflict returned code $($conflict.code)" }
+
+    $malformed = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/synthetic-events" -Headers $headers -ContentType 'application/json' -Body '{' -TimeoutSec 10 -NoProxy
+    if ([int]$malformed.code -ne 400) { throw "malformed request returned code $($malformed.code)" }
+    $oversized = @{ sourceEventId='too-large'; eventType='test'; occurredAt=$occurredAt; location='lab'; severity='low'; attributes=@{ blob=('x' * 70000) } } | ConvertTo-Json -Depth 5 -Compress
+    $tooLarge = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/synthetic-events" -Headers $headers -ContentType 'application/json' -Body $oversized -TimeoutSec 10 -NoProxy
+    if ([int]$tooLarge.code -ne 400) { throw "oversized request returned code $($tooLarge.code)" }
+
+    $psql = Join-Path $PostgresBin 'psql.exe'
+    $counts = & $psql -h 127.0.0.1 -p $pgPort -U postgres -d $database -Atc "select count(*) from bell_events; select count(*) from bell_event_receipts; select count(*) from bell_event_ingest_audits where outcome='accepted'; select count(*) from bell_event_ingest_audits where outcome='replay'; select count(*) from bell_event_ingest_audits where outcome='conflict';"
+    if (($counts -join ',') -ne '2,2,2,12,1') { throw "unexpected Bell fact counts: $($counts -join ',')" }
+    $payloadAuditCount = & $psql -h 127.0.0.1 -p $pgPort -U postgres -d $database -Atc "select count(*) from sys_opera_log where oper_url='/api/v1/bell/synthetic-events' and (oper_param like '%sourceEventId%' or json_result like '%acceptance-001%');"
+    if ([int]$payloadAuditCount -ne 0) { throw 'generic GoAdmin audit retained synthetic event payload' }
+    & $psql -h 127.0.0.1 -p $pgPort -U postgres -d $database -v ON_ERROR_STOP=1 -c "update bell_events set severity='low' where id='$eventId'" 2>$null | Out-Null
+    if ($LASTEXITCODE -eq 0) { throw 'immutable Event update unexpectedly succeeded' }
+    & $psql -h 127.0.0.1 -p $pgPort -U postgres -d $database -v ON_ERROR_STOP=1 -c "delete from bell_event_receipts where id='$receiptId'" 2>$null | Out-Null
+    if ($LASTEXITCODE -eq 0) { throw 'immutable Receipt delete unexpectedly succeeded' }
+
+    Stop-Bell
+    Start-Bell $baseUrl
+    $afterRestart = Invoke-RestMethod -Uri "$baseUrl/api/v1/bell/events/$eventId" -Headers $headers -TimeoutSec 10 -NoProxy
+    if ([int]$afterRestart.code -ne 200 -or $afterRestart.data.id -ne $eventId) { throw 'Event was not readable after Bell restart' }
+
+    Stop-Bell
+    Start-Bell $baseUrl 'config/settings.yml'
+    $productionSynthetic = Invoke-WebRequest -Method Post -Uri "$baseUrl/api/v1/bell/synthetic-events" -ContentType 'application/json' -Body '{}' -TimeoutSec 10 -NoProxy -SkipHttpErrorCheck
+    if ([int]$productionSynthetic.StatusCode -ne 404) { throw "production synthetic route returned HTTP $($productionSynthetic.StatusCode)" }
+
+    Write-Output "BELL_131_SMOKE events=2 receipts=2 concurrent=12 audit=redacted immutable=true restart=true production_synthetic=404"
+} finally {
+    Stop-Bell
+    if ($pgStarted) {
+        & (Join-Path $PostgresBin 'pg_ctl.exe') -D $pgData -m fast stop *> (Join-Path $testRoot 'pg-stop.log')
+    }
+    foreach ($name in @('BELL_DATABASE_URL','BELL_JWT_SECRET','BELL_BOOTSTRAP_USERNAME','BELL_BOOTSTRAP_PASSWORD','BELL_HOST','BELL_PORT','BELL_SYNTHETIC_EVENTS_ENABLED')) {
+        Remove-Item "Env:$name" -ErrorAction SilentlyContinue
+    }
+    Write-Verbose "Bell #131 temporary artifacts: $testRoot"
+}

Bell/scripts/test-independent-e2e.ps1

@@ -0,0 +1,7 @@
+param([string]$PostgresBin='D:\pgsql17\bin',[string]$PreparedPackageRoot='',[switch]$KeepTemporary,[switch]$BrowserHold)
+$arguments=@('-NoProfile','-File',(Join-Path $PSScriptRoot '..\tests\e2e\run-isolated-e2e.ps1'),'-PostgresBin',$PostgresBin)
+if(-not[string]::IsNullOrWhiteSpace($PreparedPackageRoot)){$arguments+=@('-PreparedPackageRoot',$PreparedPackageRoot)}
+if($KeepTemporary){$arguments+='-KeepTemporary'}
+if($BrowserHold){$arguments+='-BrowserHold'}
+& pwsh.exe @arguments
+exit $LASTEXITCODE

Bell/server/app/admin/apis/captcha.go

@@ -21,13 +21,12 @@ func (e System) GenerateCaptchaHandler(c *gin.Context) {
 		e.Error(500, err, "服务初始化失败！")
 		return
 	}
-	id, b64s, answer, err := captcha.DriverDigitFunc()
+	id, b64s, _, err := captcha.DriverDigitFunc()
 	if err != nil {
 		e.Logger.Errorf("DriverDigitFunc error, %s", err.Error())
 		e.Error(500, err, "验证码获取失败")
 		return
 	}
-	e.Logger.Infof("DriverDigitFunc answer: %s", answer)
 	e.Custom(gin.H{
 		"code": 200,
 		"data": b64s,

Bell/server/app/admin/router/sys_router.go

@@ -28,6 +28,9 @@ func sysCheckRoleRouterInit(r *gin.RouterGroup, authMiddleware *jwt.GinJWTMiddle
 }
 
 func registerBaseRouter(v1 *gin.RouterGroup, authMiddleware *jwt.GinJWTMiddleware) {
+	systemAPI := apis.System{}
+	v1.GET("/captcha", systemAPI.GenerateCaptchaHandler)
+
 	api := apis.SysMenu{}
 	v1auth := v1.Group("").Use(authMiddleware.MiddlewareFunc()).Use(middleware.AuthCheckRole())
 	{

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

@@ -0,0 +1,86 @@
+package alert
+
+import (
+	"errors"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gin-gonic/gin/binding"
+	"github.com/go-admin-team/go-admin-core/sdk/api"
+
+	"go-admin/app/bell/evaluation"
+)
+
+type Handler struct{ api.Api }
+
+func (h Handler) List(c *gin.Context) {
+	var query PageQuery
+	h.MakeContext(c).MakeOrm().Bind(&query, binding.Form)
+	if h.Errors != nil {
+		h.Error(http.StatusBadRequest, errors.New("查询条件不正确"), "查询条件不正确")
+		return
+	}
+	items, count, err := NewService(h.Orm).List(c.Request.Context(), query)
+	if err != nil {
+		h.Logger.Errorf("list Bell alerts failed: %v", err)
+		h.Error(http.StatusInternalServerError, errors.New("读取预警失败"), "读取预警失败")
+		return
+	}
+	page, size := pageValues(query.PageIndex, query.PageSize)
+	h.PageOK(items, int(count), page, size, "查询成功")
+}
+
+func (h Handler) Get(c *gin.Context) {
+	h.MakeContext(c).MakeOrm()
+	if h.Errors != nil {
+		h.Error(http.StatusInternalServerError, errors.New("数据库连接获取失败"), "数据库连接获取失败")
+		return
+	}
+	detail, err := NewService(h.Orm).Get(c.Request.Context(), c.Param("id"))
+	if err != nil {
+		if errors.Is(err, ErrNotFound) {
+			h.Error(http.StatusNotFound, ErrNotFound, ErrNotFound.Error())
+			return
+		}
+		h.Logger.Errorf("get Bell alert failed: %v", err)
+		h.Error(http.StatusInternalServerError, errors.New("读取预警失败"), "读取预警失败")
+		return
+	}
+	h.OK(detail, "查询成功")
+}
+
+func (h Handler) ListEvents(c *gin.Context) {
+	var query EventPageQuery
+	h.MakeContext(c).MakeOrm().Bind(&query, binding.Form)
+	if h.Errors != nil {
+		h.Error(http.StatusBadRequest, errors.New("查询条件不正确"), "查询条件不正确")
+		return
+	}
+	items, count, err := NewService(h.Orm).ListEvents(c.Request.Context(), query)
+	if err != nil {
+		h.Logger.Errorf("list Bell events failed: %v", err)
+		h.Error(http.StatusInternalServerError, errors.New("读取事件失败"), "读取事件失败")
+		return
+	}
+	page, size := pageValues(query.PageIndex, query.PageSize)
+	h.PageOK(items, int(count), page, size, "查询成功")
+}
+
+func (h Handler) EventResults(c *gin.Context) {
+	h.MakeContext(c).MakeOrm()
+	if h.Errors != nil {
+		h.Error(http.StatusInternalServerError, errors.New("数据库连接获取失败"), "数据库连接获取失败")
+		return
+	}
+	result, err := evaluation.NewService(h.Orm).ForEvent(c.Request.Context(), c.Param("id"))
+	if err != nil {
+		if errors.Is(err, evaluation.ErrEventNotFound) {
+			h.Error(http.StatusNotFound, evaluation.ErrEventNotFound, evaluation.ErrEventNotFound.Error())
+			return
+		}
+		h.Logger.Errorf("get Bell event rule results failed: %v", err)
+		h.Error(http.StatusInternalServerError, errors.New("读取规则评估失败"), "读取规则评估失败")
+		return
+	}
+	h.OK(result, "查询成功")
+}

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

@@ -0,0 +1,40 @@
+package alert
+
+import (
+	"encoding/json"
+	"time"
+)
+
+type Alert struct {
+	ID             string    `json:"id" gorm:"type:uuid;primaryKey"`
+	PrimaryRuleID  string    `json:"primaryRuleId" gorm:"type:uuid;not null;index"`
+	CorrelationKey string    `json:"-" gorm:"size:384;not null"`
+	Status         string    `json:"status" gorm:"size:24;not null;default:open;index"`
+	Severity       string    `json:"severity" gorm:"size:16;not null;index"`
+	Summary        string    `json:"summary" gorm:"size:256;not null"`
+	Location       string    `json:"location" gorm:"size:256;not null;index"`
+	CreatedAt      time.Time `json:"createdAt" gorm:"type:timestamptz;not null;index"`
+	UpdatedAt      time.Time `json:"updatedAt" gorm:"type:timestamptz;not null"`
+}
+
+func (Alert) TableName() string { return "bell_alerts" }
+
+type AlertEvent struct {
+	AlertID  string    `json:"alertId" gorm:"type:uuid;primaryKey"`
+	EventID  string    `json:"eventId" gorm:"type:uuid;primaryKey"`
+	LinkedAt time.Time `json:"linkedAt" gorm:"type:timestamptz;not null"`
+}
+
+func (AlertEvent) TableName() string { return "bell_alert_events" }
+
+type RuleMatch struct {
+	EventID      string          `json:"eventId" gorm:"type:uuid;primaryKey"`
+	RuleID       string          `json:"ruleId" gorm:"type:uuid;primaryKey"`
+	AlertID      string          `json:"alertId" gorm:"type:uuid;not null;index"`
+	RuleVersion  int             `json:"ruleVersion" gorm:"not null"`
+	RuleSnapshot json.RawMessage `json:"ruleSnapshot" gorm:"type:jsonb;not null"`
+	Explanation  string          `json:"explanation" gorm:"size:512;not null"`
+	MatchedAt    time.Time       `json:"matchedAt" gorm:"type:timestamptz;not null"`
+}
+
+func (RuleMatch) TableName() string { return "bell_rule_matches" }

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

@@ -0,0 +1,136 @@
+package alert
+
+import (
+	"context"
+	"errors"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+
+	"go-admin/app/bell/event"
+)
+
+var ErrNotFound = errors.New("预警不存在")
+
+type PageQuery struct {
+	PageIndex int    `form:"pageIndex"`
+	PageSize  int    `form:"pageSize"`
+	Status    string `form:"status"`
+	Severity  string `form:"severity"`
+	Location  string `form:"location"`
+}
+
+type Summary struct {
+	Alert
+	RuleName   string `json:"ruleName"`
+	EventCount int64  `json:"eventCount"`
+}
+
+type LinkedEvent struct {
+	event.Event
+	LinkedAt time.Time `json:"linkedAt"`
+}
+
+type Detail struct {
+	Alert   Summary       `json:"alert"`
+	Events  []LinkedEvent `json:"events"`
+	Matches []RuleMatch   `json:"matches"`
+}
+
+type Service struct{ DB *gorm.DB }
+
+func NewService(db *gorm.DB) Service { return Service{DB: db} }
+
+func (s Service) List(ctx context.Context, query PageQuery) ([]Summary, int64, error) {
+	page, size := pageValues(query.PageIndex, query.PageSize)
+	base := s.DB.WithContext(ctx).Table("bell_alerts a")
+	if query.Status = strings.TrimSpace(query.Status); query.Status != "" {
+		base = base.Where("a.status = ?", query.Status)
+	}
+	if query.Severity = strings.TrimSpace(query.Severity); query.Severity != "" {
+		base = base.Where("a.severity = ?", query.Severity)
+	}
+	if query.Location = strings.TrimSpace(query.Location); query.Location != "" {
+		base = base.Where("a.location ILIKE ?", "%"+query.Location+"%")
+	}
+	var count int64
+	if err := base.Count(&count).Error; err != nil {
+		return nil, 0, err
+	}
+	items := make([]Summary, 0)
+	err := base.Select("a.*, r.name AS rule_name, (SELECT count(*) FROM bell_alert_events ae WHERE ae.alert_id = a.id) AS event_count").
+		Joins("JOIN bell_rules r ON r.id = a.primary_rule_id").
+		Order("a.created_at DESC, a.id DESC").Offset((page - 1) * size).Limit(size).Scan(&items).Error
+	return items, count, err
+}
+
+func (s Service) Get(ctx context.Context, id string) (Detail, error) {
+	if _, err := uuid.Parse(id); err != nil {
+		return Detail{}, ErrNotFound
+	}
+	detail := Detail{Events: make([]LinkedEvent, 0), Matches: make([]RuleMatch, 0)}
+	db := s.DB.WithContext(ctx)
+	err := db.Table("bell_alerts a").
+		Select("a.*, r.name AS rule_name, (SELECT count(*) FROM bell_alert_events ae WHERE ae.alert_id = a.id) AS event_count").
+		Joins("JOIN bell_rules r ON r.id = a.primary_rule_id").Where("a.id = ?", id).Take(&detail.Alert).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return Detail{}, ErrNotFound
+	}
+	if err != nil {
+		return Detail{}, err
+	}
+	if err = db.Table("bell_events e").Select("e.*, ae.linked_at").
+		Joins("JOIN bell_alert_events ae ON ae.event_id = e.id").
+		Where("ae.alert_id = ?", id).Order("e.occurred_at, e.id").Scan(&detail.Events).Error; err != nil {
+		return Detail{}, err
+	}
+	err = db.Where("alert_id = ?", id).Order("matched_at, event_id, rule_id").Find(&detail.Matches).Error
+	return detail, err
+}
+
+type EventPageQuery struct {
+	PageIndex int    `form:"pageIndex"`
+	PageSize  int    `form:"pageSize"`
+	EventType string `form:"eventType"`
+	Severity  string `form:"severity"`
+	Location  string `form:"location"`
+}
+
+type EventSummary struct {
+	event.Event
+	AlertCount int64 `json:"alertCount"`
+}
+
+func (s Service) ListEvents(ctx context.Context, query EventPageQuery) ([]EventSummary, int64, error) {
+	page, size := pageValues(query.PageIndex, query.PageSize)
+	db := s.DB.WithContext(ctx).Model(&event.Event{})
+	if value := strings.TrimSpace(query.EventType); value != "" {
+		db = db.Where("event_type ILIKE ?", "%"+value+"%")
+	}
+	if value := strings.TrimSpace(query.Severity); value != "" {
+		db = db.Where("severity = ?", value)
+	}
+	if value := strings.TrimSpace(query.Location); value != "" {
+		db = db.Where("location ILIKE ?", "%"+value+"%")
+	}
+	var count int64
+	if err := db.Count(&count).Error; err != nil {
+		return nil, 0, err
+	}
+	items := make([]EventSummary, 0)
+	err := db.Select("bell_events.*, (SELECT count(*) FROM bell_alert_events ae WHERE ae.event_id = bell_events.id) AS alert_count").
+		Order("occurred_at DESC, id DESC").Offset((page - 1) * size).Limit(size).Scan(&items).Error
+	return items, count, err
+}
+
+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/alert_lifecycle/handler.go

@@ -0,0 +1,83 @@
+package alert_lifecycle
+
+import (
+	"errors"
+	"net/http"
+
+	"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) Get(c *gin.Context) {
+	h.MakeContext(c).MakeOrm()
+	if h.Errors != nil {
+		h.Error(500, errors.New("数据库连接获取失败"), "数据库连接获取失败")
+		return
+	}
+	detail, err := NewService(h.Orm).Get(c.Request.Context(), c.Param("id"))
+	if err == nil {
+		current := actor(c)
+		detail.CanAck = detail.Projection.Status == StatusOpen && (current.Role == "admin" || current.Role == "operator")
+		detail.CanClose = detail.Projection.Status == StatusAcknowledged && (current.Role == "admin" || (detail.Projection.AcknowledgedBy != nil && *detail.Projection.AcknowledgedBy == current.ID))
+	}
+	h.respond(c, Result{Detail: detail}, err)
+}
+
+func (h Handler) Ack(c *gin.Context) {
+	h.MakeContext(c).MakeOrm()
+	if h.Errors != nil {
+		h.Error(500, errors.New("数据库连接获取失败"), "数据库连接获取失败")
+		return
+	}
+	result, err := NewService(h.Orm).Ack(c.Request.Context(), c.Param("id"), actor(c))
+	h.respond(c, result, err)
+}
+
+func (h Handler) Close(c *gin.Context) {
+	if err := restoreCloseBody(c); err != nil {
+		h.MakeContext(c).Error(http.StatusBadRequest, ErrOutcomeRequired, "请求内容格式不正确")
+		return
+	}
+	var input CloseInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil {
+		h.Error(http.StatusBadRequest, ErrOutcomeRequired, "请求内容格式不正确")
+		return
+	}
+	result, err := NewService(h.Orm).Close(c.Request.Context(), c.Param("id"), input, actor(c))
+	h.respond(c, result, err)
+}
+
+func (h Handler) respond(c *gin.Context, result Result, err error) {
+	if err == nil {
+		h.OK(result, "操作成功")
+		c.Set("result", gin.H{"code": http.StatusOK, "data": "<redacted>"})
+		return
+	}
+	code := http.StatusInternalServerError
+	switch {
+	case errors.Is(err, ErrNotFound):
+		code = http.StatusNotFound
+	case errors.Is(err, ErrOutcomeRequired):
+		code = http.StatusBadRequest
+	case errors.Is(err, ErrAlreadyHandled), errors.Is(err, ErrInvalidTransition):
+		code = http.StatusConflict
+	case errors.Is(err, ErrForbidden):
+		code = http.StatusForbidden
+	default:
+		h.Logger.Errorf("Bell alert lifecycle failed: %v", err)
+	}
+	c.JSON(http.StatusOK, gin.H{"code": code, "msg": err.Error(), "data": result})
+	c.Set("result", gin.H{"code": code, "data": "<redacted>"})
+}
+
+func actor(c *gin.Context) Actor {
+	claims := jwt.ExtractClaims(c)
+	role, _ := claims[jwt.RoleKey].(string)
+	return Actor{ID: user.GetUserId(c), Name: user.GetUserName(c), Role: role}
+}

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

@@ -0,0 +1,50 @@
+package alert_lifecycle
+
+import "time"
+
+const (
+	StatusOpen         = "open"
+	StatusAcknowledged = "acknowledged"
+	StatusClosed       = "closed"
+)
+
+type Projection struct {
+	ID                 string     `json:"id" gorm:"type:uuid;primaryKey"`
+	Status             string     `json:"status"`
+	AcknowledgedBy     *int       `json:"acknowledgedBy,omitempty"`
+	AcknowledgedByName *string    `json:"acknowledgedByName,omitempty"`
+	AcknowledgedAt     *time.Time `json:"acknowledgedAt,omitempty"`
+	ClosedBy           *int       `json:"closedBy,omitempty"`
+	ClosedByName       *string    `json:"closedByName,omitempty"`
+	ClosedAt           *time.Time `json:"closedAt,omitempty"`
+	CloseOutcome       *string    `json:"closeOutcome,omitempty"`
+	CloseNote          *string    `json:"closeNote,omitempty"`
+}
+
+func (Projection) TableName() string { return "bell_alerts" }
+
+type Fact struct {
+	ID         string    `json:"id" gorm:"type:uuid;primaryKey"`
+	AlertID    string    `json:"alertId" gorm:"type:uuid;not null;uniqueIndex:bell_alert_transition"`
+	Transition string    `json:"transition" gorm:"size:24;not null;uniqueIndex:bell_alert_transition"`
+	ActorID    int       `json:"actorId" gorm:"not null"`
+	ActorName  string    `json:"actorName" gorm:"size:128;not null"`
+	Outcome    *string   `json:"outcome,omitempty" gorm:"size:32"`
+	Note       *string   `json:"note,omitempty" gorm:"size:500"`
+	OccurredAt time.Time `json:"occurredAt" gorm:"type:timestamptz;not null;index"`
+}
+
+func (Fact) TableName() string { return "bell_alert_lifecycle_facts" }
+
+type RejectionAudit struct {
+	ID             string    `json:"id" gorm:"type:uuid;primaryKey"`
+	AlertID        *string   `json:"alertId,omitempty" gorm:"type:uuid;index"`
+	Action         string    `json:"action" gorm:"size:16;not null"`
+	ActorID        int       `json:"actorId" gorm:"not null;index"`
+	Reason         string    `json:"reason" gorm:"size:64;not null"`
+	ObservedStatus *string   `json:"observedStatus,omitempty" gorm:"size:24"`
+	ObservedActor  *int      `json:"observedActor,omitempty"`
+	CreatedAt      time.Time `json:"createdAt" gorm:"type:timestamptz;not null;index"`
+}
+
+func (RejectionAudit) TableName() string { return "bell_alert_lifecycle_rejections" }

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

@@ -0,0 +1,47 @@
+package alert_lifecycle
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+const maxCloseRequestBytes = 8 * 1024
+const closeBodyKey = "bell.lifecycle.close-body"
+const closeBodyErrorKey = "bell.lifecycle.close-body-error"
+
+func RedactRequestBody() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if c.Request.Method != http.MethodPost || !strings.HasPrefix(c.Request.URL.Path, "/api/v1/bell/alerts/") || !strings.HasSuffix(c.Request.URL.Path, "/close") {
+			c.Next()
+			return
+		}
+		body, err := io.ReadAll(io.LimitReader(c.Request.Body, maxCloseRequestBytes+1))
+		if err != nil {
+			c.Set(closeBodyErrorKey, err)
+		} else if len(body) > maxCloseRequestBytes {
+			c.Set(closeBodyErrorKey, errors.New("request body too large"))
+		} else {
+			c.Set(closeBodyKey, body)
+		}
+		_ = c.Request.Body.Close()
+		c.Request.Body = io.NopCloser(bytes.NewReader([]byte(`{"redacted":true}`)))
+		c.Next()
+	}
+}
+
+func restoreCloseBody(c *gin.Context) error {
+	if value, ok := c.Get(closeBodyErrorKey); ok {
+		return value.(error)
+	}
+	value, ok := c.Get(closeBodyKey)
+	if !ok {
+		return errors.New("close request body was not captured")
+	}
+	c.Request.Body = io.NopCloser(bytes.NewReader(value.([]byte)))
+	return nil
+}

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

@@ -0,0 +1,165 @@
+package alert_lifecycle
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+type Actor struct {
+	ID         int
+	Name, Role string
+}
+type Detail struct {
+	Projection Projection `json:"projection"`
+	Timeline   []Fact     `json:"timeline"`
+	CanAck     bool       `json:"canAck"`
+	CanClose   bool       `json:"canClose"`
+}
+type Result struct {
+	Detail     Detail `json:"detail"`
+	Idempotent bool   `json:"idempotent"`
+	Won        bool   `json:"won"`
+}
+type Service struct{ DB *gorm.DB }
+
+func NewService(db *gorm.DB) Service { return Service{DB: db} }
+
+func (s Service) Get(ctx context.Context, alertID string) (Detail, error) {
+	if _, err := uuid.Parse(alertID); err != nil {
+		return Detail{}, ErrNotFound
+	}
+	var projection Projection
+	if err := s.DB.WithContext(ctx).First(&projection, "id = ?", alertID).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return Detail{}, ErrNotFound
+		}
+		return Detail{}, err
+	}
+	facts := make([]Fact, 0)
+	if err := s.DB.WithContext(ctx).Where("alert_id = ?", alertID).Order("occurred_at, id").Find(&facts).Error; err != nil {
+		return Detail{}, err
+	}
+	return Detail{Projection: projection, Timeline: facts}, nil
+}
+
+func (s Service) Ack(ctx context.Context, alertID string, actor Actor) (Result, error) {
+	if _, err := uuid.Parse(alertID); err != nil {
+		s.reject(ctx, nil, "ack", actor.ID, "not_found", nil)
+		return Result{}, ErrNotFound
+	}
+	now := time.Now().UTC()
+	var projection Projection
+	err := s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		result := tx.Raw(`UPDATE bell_alerts SET status='acknowledged', acknowledged_by=?, acknowledged_by_name=?, acknowledged_at=?, updated_at=? WHERE id=? AND status='open' RETURNING id,status,acknowledged_by,acknowledged_by_name,acknowledged_at,closed_by,closed_by_name,closed_at,close_outcome,close_note`, actor.ID, actor.Name, now, now, alertID).Scan(&projection)
+		if result.Error != nil {
+			return result.Error
+		}
+		if result.RowsAffected == 0 {
+			return gorm.ErrRecordNotFound
+		}
+		return tx.Create(&Fact{ID: uuid.NewString(), AlertID: alertID, Transition: StatusAcknowledged, ActorID: actor.ID, ActorName: actor.Name, OccurredAt: now}).Error
+	})
+	if err == nil {
+		detail, getErr := s.Get(ctx, alertID)
+		return Result{Detail: detail, Won: true}, getErr
+	}
+	if !errors.Is(err, gorm.ErrRecordNotFound) {
+		return Result{}, err
+	}
+	detail, getErr := s.Get(ctx, alertID)
+	if getErr != nil {
+		return Result{}, getErr
+	}
+	if detail.Projection.AcknowledgedBy != nil && *detail.Projection.AcknowledgedBy == actor.ID {
+		s.reject(ctx, &alertID, "ack", actor.ID, "duplicate", &detail.Projection)
+		return Result{Detail: detail, Idempotent: true}, nil
+	}
+	s.reject(ctx, &alertID, "ack", actor.ID, "already_handled", &detail.Projection)
+	return Result{Detail: detail}, ErrAlreadyHandled
+}
+
+func (s Service) Close(ctx context.Context, alertID string, input CloseInput, actor Actor) (Result, error) {
+	normalized, err := normalizeClose(input)
+	if err != nil {
+		s.reject(ctx, validAlertID(alertID), "close", actor.ID, "invalid_outcome", nil)
+		return Result{}, err
+	}
+	if _, err = uuid.Parse(alertID); err != nil {
+		s.reject(ctx, nil, "close", actor.ID, "not_found", nil)
+		return Result{}, ErrNotFound
+	}
+	var projection Projection
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if lockErr := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&projection, "id = ?", alertID).Error; lockErr != nil {
+			return lockErr
+		}
+		if projection.Status == StatusClosed {
+			return ErrInvalidTransition
+		}
+		if projection.Status != StatusAcknowledged {
+			return ErrInvalidTransition
+		}
+		if actor.Role != "admin" && (projection.AcknowledgedBy == nil || *projection.AcknowledgedBy != actor.ID) {
+			return ErrForbidden
+		}
+		now := time.Now().UTC()
+		var note *string
+		if normalized.Note != "" {
+			note = &normalized.Note
+		}
+		if updateErr := tx.Model(&projection).Updates(map[string]any{"status": StatusClosed, "closed_by": actor.ID, "closed_by_name": actor.Name, "closed_at": now, "close_outcome": normalized.Outcome, "close_note": note, "updated_at": now}).Error; updateErr != nil {
+			return updateErr
+		}
+		return tx.Create(&Fact{ID: uuid.NewString(), AlertID: alertID, Transition: StatusClosed, ActorID: actor.ID, ActorName: actor.Name, Outcome: &normalized.Outcome, Note: note, OccurredAt: now}).Error
+	})
+	if err == nil {
+		detail, getErr := s.Get(ctx, alertID)
+		return Result{Detail: detail, Won: true}, getErr
+	}
+	if !errors.Is(err, ErrInvalidTransition) && !errors.Is(err, ErrForbidden) && !errors.Is(err, gorm.ErrRecordNotFound) {
+		return Result{}, err
+	}
+	detail, getErr := s.Get(ctx, alertID)
+	if getErr != nil {
+		return Result{}, getErr
+	}
+	if detail.Projection.Status == StatusClosed && detail.Projection.ClosedBy != nil && *detail.Projection.ClosedBy == actor.ID && detail.Projection.CloseOutcome != nil && *detail.Projection.CloseOutcome == normalized.Outcome && equalOptional(detail.Projection.CloseNote, normalized.Note) {
+		s.reject(ctx, &alertID, "close", actor.ID, "duplicate", &detail.Projection)
+		return Result{Detail: detail, Idempotent: true}, nil
+	}
+	reason := "invalid_transition"
+	publicErr := ErrInvalidTransition
+	if errors.Is(err, ErrForbidden) {
+		reason, publicErr = "forbidden", ErrForbidden
+	} else if detail.Projection.Status == StatusClosed {
+		reason = "conflicting_replay"
+	}
+	s.reject(ctx, &alertID, "close", actor.ID, reason, &detail.Projection)
+	return Result{Detail: detail}, publicErr
+}
+
+func (s Service) reject(ctx context.Context, alertID *string, action string, actorID int, reason string, projection *Projection) {
+	audit := RejectionAudit{ID: uuid.NewString(), AlertID: alertID, Action: action, ActorID: actorID, Reason: reason, CreatedAt: time.Now().UTC()}
+	if projection != nil {
+		audit.ObservedStatus = &projection.Status
+		audit.ObservedActor = projection.AcknowledgedBy
+	}
+	_ = s.DB.WithContext(ctx).Create(&audit).Error
+}
+func validAlertID(value string) *string {
+	if _, err := uuid.Parse(value); err != nil {
+		return nil
+	}
+	return &value
+}
+func equalOptional(value *string, other string) bool {
+	if value == nil {
+		return other == ""
+	}
+	return *value == other
+}

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

@@ -0,0 +1,34 @@
+package alert_lifecycle
+
+import (
+	"errors"
+	"strings"
+	"unicode/utf8"
+)
+
+var (
+	ErrNotFound          = errors.New("预警不存在")
+	ErrAlreadyHandled    = errors.New("预警已由其他人员开始处理")
+	ErrInvalidTransition = errors.New("当前状态不能执行此操作")
+	ErrOutcomeRequired   = errors.New("请选择有效的现场结果")
+	ErrForbidden         = errors.New("您无权完成此预警")
+)
+
+type CloseInput struct {
+	Outcome string `json:"outcome"`
+	Note    string `json:"note"`
+}
+
+func normalizeClose(input CloseInput) (CloseInput, error) {
+	input.Outcome = strings.TrimSpace(input.Outcome)
+	input.Note = strings.TrimSpace(input.Note)
+	switch input.Outcome {
+	case "danger_confirmed", "false_positive", "site_normal", "unable_to_confirm":
+	default:
+		return CloseInput{}, ErrOutcomeRequired
+	}
+	if !utf8.ValidString(input.Note) || utf8.RuneCountInString(input.Note) > 500 || strings.ContainsAny(input.Note, "\x00\r") {
+		return CloseInput{}, ErrOutcomeRequired
+	}
+	return input, nil
+}

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

@@ -0,0 +1,20 @@
+package evaluation
+
+import (
+	"encoding/json"
+	"time"
+)
+
+// Evaluation is an immutable explanation of one rule version evaluated
+// against one Event.
+type Evaluation struct {
+	EventID      string          `json:"eventId" gorm:"type:uuid;primaryKey"`
+	RuleID       string          `json:"ruleId" gorm:"type:uuid;primaryKey"`
+	RuleVersion  int             `json:"ruleVersion" gorm:"not null"`
+	RuleSnapshot json.RawMessage `json:"ruleSnapshot" gorm:"type:jsonb;not null"`
+	Matched      bool            `json:"matched" gorm:"not null"`
+	Explanation  string          `json:"explanation" gorm:"size:512;not null"`
+	EvaluatedAt  time.Time       `json:"evaluatedAt" gorm:"type:timestamptz;not null"`
+}
+
+func (Evaluation) TableName() string { return "bell_rule_evaluations" }

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

@@ -0,0 +1,50 @@
+package evaluation
+
+import (
+	"context"
+	"errors"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+var ErrEventNotFound = errors.New("事件不存在")
+
+type EventResults struct {
+	Evaluations []Evaluation `json:"evaluations"`
+	Alerts      []AlertLink  `json:"alerts"`
+}
+
+type AlertLink struct {
+	ID       string `json:"id"`
+	Summary  string `json:"summary"`
+	Status   string `json:"status"`
+	Severity string `json:"severity"`
+	Location string `json:"location"`
+}
+
+type Service struct{ DB *gorm.DB }
+
+func NewService(db *gorm.DB) Service { return Service{DB: db} }
+
+func (s Service) ForEvent(ctx context.Context, eventID string) (EventResults, error) {
+	if _, err := uuid.Parse(eventID); err != nil {
+		return EventResults{}, ErrEventNotFound
+	}
+	var count int64
+	if err := s.DB.WithContext(ctx).Table("bell_events").Where("id = ?", eventID).Count(&count).Error; err != nil {
+		return EventResults{}, err
+	}
+	if count == 0 {
+		return EventResults{}, ErrEventNotFound
+	}
+	result := EventResults{Evaluations: make([]Evaluation, 0), Alerts: make([]AlertLink, 0)}
+	if err := s.DB.WithContext(ctx).Where("event_id = ?", eventID).Order("evaluated_at, rule_id").Find(&result.Evaluations).Error; err != nil {
+		return EventResults{}, err
+	}
+	err := s.DB.WithContext(ctx).Table("bell_alerts a").
+		Select("a.id, a.summary, a.status, a.severity, a.location").
+		Joins("JOIN bell_alert_events ae ON ae.alert_id = a.id").
+		Where("ae.event_id = ?", eventID).Order("a.created_at, a.id").Scan(&result.Alerts).Error
+	return result, err
+}

Bell/server/app/bell/event/errors.go

@@ -0,0 +1,9 @@
+package event
+
+import "errors"
+
+var (
+	ErrInvalid  = errors.New("事件字段无效")
+	ErrConflict = errors.New("幂等键已用于不同事件载荷")
+	ErrNotFound = errors.New("事件不存在")
+)

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

@@ -0,0 +1,24 @@
+package event
+
+import (
+	"encoding/json"
+	"time"
+)
+
+// Event is an immutable Bell business fact. It intentionally does not embed
+// GoAdmin's mutable/soft-delete model fields.
+type Event struct {
+	ID                string          `json:"id" gorm:"type:uuid;primaryKey"`
+	ProducerID        string          `json:"producerId" gorm:"size:128;not null;uniqueIndex:bell_event_key"`
+	SourceEventID     string          `json:"sourceEventId" gorm:"size:256;not null;uniqueIndex:bell_event_key"`
+	EventType         string          `json:"eventType" gorm:"size:128;not null;index"`
+	OccurredAt        time.Time       `json:"occurredAt" gorm:"type:timestamptz;not null;index"`
+	Location          string          `json:"location" gorm:"size:256;not null;index"`
+	Severity          string          `json:"severity" gorm:"size:16;not null;index"`
+	EvidenceRef       *string         `json:"evidenceRef,omitempty" gorm:"size:512"`
+	NormalizedPayload json.RawMessage `json:"normalizedPayload" gorm:"type:jsonb;not null"`
+	PayloadSHA256     string          `json:"-" gorm:"type:char(64);not null"`
+	ReceivedAt        time.Time       `json:"receivedAt" gorm:"type:timestamptz;not null;index"`
+}
+
+func (Event) TableName() string { return "bell_events" }

Bell/server/app/bell/event/normalize.go

@@ -0,0 +1,105 @@
+package event
+
+import (
+	"bytes"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"strings"
+	"time"
+	"unicode/utf8"
+)
+
+const (
+	maxProducerID    = 128
+	maxSourceEventID = 256
+	maxEventType     = 128
+	maxLocation      = 256
+	maxEvidenceRef   = 512
+	maxAttributes    = 48 * 1024
+)
+
+type Command struct {
+	ProducerID    string         `json:"producerId"`
+	SourceEventID string         `json:"sourceEventId"`
+	EventType     string         `json:"eventType"`
+	OccurredAt    time.Time      `json:"occurredAt"`
+	Location      string         `json:"location"`
+	Severity      string         `json:"severity"`
+	EvidenceRef   *string        `json:"evidenceRef,omitempty"`
+	Attributes    map[string]any `json:"attributes"`
+}
+
+type Normalized struct {
+	Command Command
+	Payload []byte
+	Digest  string
+}
+
+func Normalize(command Command) (Normalized, error) {
+	command.ProducerID = strings.TrimSpace(command.ProducerID)
+	command.SourceEventID = strings.TrimSpace(command.SourceEventID)
+	command.EventType = strings.TrimSpace(command.EventType)
+	command.Location = strings.TrimSpace(command.Location)
+	command.Severity = strings.ToLower(strings.TrimSpace(command.Severity))
+	command.OccurredAt = command.OccurredAt.UTC()
+
+	if !validText(command.ProducerID, maxProducerID) ||
+		!validText(command.SourceEventID, maxSourceEventID) ||
+		!validText(command.EventType, maxEventType) ||
+		!validText(command.Location, maxLocation) || command.OccurredAt.IsZero() {
+		return Normalized{}, ErrInvalid
+	}
+	switch command.Severity {
+	case "low", "medium", "high", "critical":
+	default:
+		return Normalized{}, ErrInvalid
+	}
+	if command.EvidenceRef != nil {
+		value := strings.TrimSpace(*command.EvidenceRef)
+		lower := strings.ToLower(value)
+		if !validText(value, maxEvidenceRef) || strings.Contains(value, "@") ||
+			strings.Contains(value, "\\") || strings.HasPrefix(lower, "file:") {
+			return Normalized{}, fmt.Errorf("%w: evidenceRef 必须是安全的逻辑引用", ErrInvalid)
+		}
+		command.EvidenceRef = &value
+	}
+	if command.Attributes == nil {
+		command.Attributes = map[string]any{}
+	}
+	attributes, err := canonicalJSON(command.Attributes)
+	if err != nil || len(attributes) > maxAttributes {
+		return Normalized{}, fmt.Errorf("%w: attributes 无效或过大", ErrInvalid)
+	}
+	// Round trip the attributes so map ordering and nested values have one
+	// deterministic representation before the complete command is hashed.
+	if err = json.Unmarshal(attributes, &command.Attributes); err != nil {
+		return Normalized{}, fmt.Errorf("%w: attributes 无效", ErrInvalid)
+	}
+	payload, err := json.Marshal(command)
+	if err != nil {
+		return Normalized{}, fmt.Errorf("normalize event: %w", err)
+	}
+	digest := sha256.Sum256(payload)
+	return Normalized{Command: command, Payload: payload, Digest: hex.EncodeToString(digest[:])}, nil
+}
+
+func canonicalJSON(value any) ([]byte, error) {
+	raw, err := json.Marshal(value)
+	if err != nil {
+		return nil, err
+	}
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.UseNumber()
+	var normalized any
+	if err = decoder.Decode(&normalized); err != nil {
+		return nil, err
+	}
+	return json.Marshal(normalized)
+}
+
+func validText(value string, max int) bool {
+	return value != "" && utf8.ValidString(value) && utf8.RuneCountInString(value) <= max &&
+		!strings.ContainsAny(value, "\x00\r\n")
+}

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

@@ -0,0 +1,110 @@
+package event
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+
+	"go-admin/app/bell/receipt"
+)
+
+type Result struct {
+	Event     Event           `json:"event"`
+	Receipt   receipt.Receipt `json:"receipt"`
+	Duplicate bool            `json:"duplicate"`
+}
+
+type Service struct{ DB *gorm.DB }
+
+func NewService(db *gorm.DB) Service { return Service{DB: db} }
+
+func (s Service) Ingest(ctx context.Context, command Command, actorID int) (Result, error) {
+	if s.DB == nil {
+		return Result{}, errors.New("event database is unavailable")
+	}
+	normalized, err := Normalize(command)
+	if err != nil {
+		return Result{}, err
+	}
+	var result Result
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		lockKey := fmt.Sprintf("%d:%s:%s", len(normalized.Command.ProducerID), normalized.Command.ProducerID, normalized.Command.SourceEventID)
+		if err := tx.Exec("SELECT pg_advisory_xact_lock(hashtextextended(?, 0))", lockKey).Error; err != nil {
+			return fmt.Errorf("lock event idempotency key: %w", err)
+		}
+
+		var existing receipt.Receipt
+		err := tx.Where("producer_id = ? AND source_event_id = ?", normalized.Command.ProducerID, normalized.Command.SourceEventID).
+			First(&existing).Error
+		if err == nil {
+			if existing.PayloadSHA256 != normalized.Digest {
+				return ErrConflict
+			}
+			if err = tx.First(&result.Event, "id = ?", existing.EventID).Error; err != nil {
+				return fmt.Errorf("load replay event: %w", err)
+			}
+			result.Receipt = existing
+			result.Duplicate = true
+			return tx.Create(&receipt.IngestAudit{
+				ProducerID: normalized.Command.ProducerID, SourceEventID: normalized.Command.SourceEventID,
+				PayloadSHA256: normalized.Digest, Outcome: receipt.OutcomeReplay, ActorID: actorID, CreatedAt: time.Now().UTC(),
+			}).Error
+		}
+		if !errors.Is(err, gorm.ErrRecordNotFound) {
+			return fmt.Errorf("load event receipt: %w", err)
+		}
+
+		now := time.Now().UTC()
+		result.Event = Event{
+			ID: uuid.NewString(), ProducerID: normalized.Command.ProducerID,
+			SourceEventID: normalized.Command.SourceEventID, EventType: normalized.Command.EventType,
+			OccurredAt: normalized.Command.OccurredAt, Location: normalized.Command.Location,
+			Severity: normalized.Command.Severity, EvidenceRef: normalized.Command.EvidenceRef,
+			NormalizedPayload: normalized.Payload, PayloadSHA256: normalized.Digest, ReceivedAt: now,
+		}
+		result.Receipt = receipt.Receipt{
+			ID: uuid.NewString(), EventID: result.Event.ID, ProducerID: result.Event.ProducerID,
+			SourceEventID: result.Event.SourceEventID, PayloadSHA256: normalized.Digest, AcceptedAt: now,
+		}
+		if err = tx.Create(&result.Event).Error; err != nil {
+			return fmt.Errorf("create event: %w", err)
+		}
+		if err = tx.Create(&result.Receipt).Error; err != nil {
+			return fmt.Errorf("create event receipt: %w", err)
+		}
+		return tx.Create(&receipt.IngestAudit{
+			ProducerID: result.Event.ProducerID, SourceEventID: result.Event.SourceEventID,
+			PayloadSHA256: normalized.Digest, Outcome: receipt.OutcomeAccepted, ActorID: actorID, CreatedAt: now,
+		}).Error
+	})
+	if errors.Is(err, ErrConflict) {
+		// The conflict audit must commit independently from the rejected ingest.
+		auditErr := s.DB.WithContext(ctx).Create(&receipt.IngestAudit{
+			ProducerID: normalized.Command.ProducerID, SourceEventID: normalized.Command.SourceEventID,
+			PayloadSHA256: normalized.Digest, Outcome: receipt.OutcomeConflict, ActorID: actorID, CreatedAt: time.Now().UTC(),
+		}).Error
+		if auditErr != nil {
+			return Result{}, fmt.Errorf("record idempotency conflict audit: %w", auditErr)
+		}
+		return Result{}, ErrConflict
+	}
+	return result, err
+}
+
+func (s Service) Get(ctx context.Context, id string) (Event, error) {
+	if _, err := uuid.Parse(id); err != nil {
+		return Event{}, ErrNotFound
+	}
+	var item Event
+	if err := s.DB.WithContext(ctx).First(&item, "id = ?", id).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return Event{}, ErrNotFound
+		}
+		return Event{}, err
+	}
+	return item, 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/receipt/audit.go

@@ -0,0 +1,23 @@
+package receipt
+
+import "time"
+
+const (
+	OutcomeAccepted = "accepted"
+	OutcomeReplay   = "replay"
+	OutcomeConflict = "conflict"
+)
+
+// IngestAudit contains only identifiers, a digest and an outcome. Event payloads,
+// credentials and tokens must never be copied into this append-only audit table.
+type IngestAudit struct {
+	ID            int64     `json:"id" gorm:"primaryKey;autoIncrement"`
+	ProducerID    string    `json:"producerId" gorm:"size:128;not null;index"`
+	SourceEventID string    `json:"sourceEventId" gorm:"size:256;not null;index"`
+	PayloadSHA256 string    `json:"-" gorm:"type:char(64);not null"`
+	Outcome       string    `json:"outcome" gorm:"size:16;not null"`
+	ActorID       int       `json:"actorId" gorm:"not null"`
+	CreatedAt     time.Time `json:"createdAt" gorm:"type:timestamptz;not null"`
+}
+
+func (IngestAudit) TableName() string { return "bell_event_ingest_audits" }

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

@@ -0,0 +1,16 @@
+package receipt
+
+import "time"
+
+// Receipt permanently binds an idempotency key to the accepted Event payload.
+// It deliberately has no UpdatedAt or soft-delete fields because it is immutable.
+type Receipt struct {
+	ID            string    `json:"id" gorm:"type:uuid;primaryKey"`
+	EventID       string    `json:"eventId" gorm:"type:uuid;not null;uniqueIndex"`
+	ProducerID    string    `json:"producerId" gorm:"size:128;not null;uniqueIndex:bell_receipt_key"`
+	SourceEventID string    `json:"sourceEventId" gorm:"size:256;not null;uniqueIndex:bell_receipt_key"`
+	PayloadSHA256 string    `json:"-" gorm:"type:char(64);not null"`
+	AcceptedAt    time.Time `json:"acceptedAt" gorm:"type:timestamptz;not null"`
+}
+
+func (Receipt) TableName() string { return "bell_event_receipts" }

Bell/server/app/bell/router/alert_lifecycle.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/alert_lifecycle"
+	"go-admin/common/middleware"
+)
+
+func init() { registrars = append(registrars, registerAlertLifecycleRouter) }
+
+func registerAlertLifecycleRouter(v1 *gin.RouterGroup, authMiddleware *jwt.GinJWTMiddleware) {
+	handler := alert_lifecycle.Handler{}
+	routes := v1.Group("").Use(authMiddleware.MiddlewareFunc()).Use(middleware.AuthCheckRole())
+	{
+		routes.GET("/alerts/:id/lifecycle", handler.Get)
+		routes.POST("/alerts/:id/ack", handler.Ack)
+		routes.POST("/alerts/:id/close", handler.Close)
+	}
+}

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

@@ -0,0 +1,38 @@
+package router
+
+import (
+	"errors"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-admin-team/go-admin-core/sdk/api"
+	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
+
+	"go-admin/app/bell/event"
+)
+
+type eventHandler struct{ api.Api }
+
+func registerEventRouter(v1 *gin.RouterGroup, authMiddleware *jwt.GinJWTMiddleware) {
+	handler := eventHandler{}
+	v1.GET("/events/:id", authMiddleware.MiddlewareFunc(), handler.Get)
+}
+
+func (h eventHandler) Get(c *gin.Context) {
+	h.MakeContext(c).MakeOrm()
+	if h.Errors != nil {
+		h.Error(http.StatusInternalServerError, errors.New("数据库连接获取失败"), "数据库连接获取失败")
+		return
+	}
+	item, err := event.NewService(h.Orm).Get(c.Request.Context(), c.Param("id"))
+	if err != nil {
+		if errors.Is(err, event.ErrNotFound) {
+			h.Error(http.StatusNotFound, event.ErrNotFound, event.ErrNotFound.Error())
+			return
+		}
+		h.Logger.Errorf("load Bell event failed: %v", err)
+		h.Error(http.StatusInternalServerError, errors.New("读取事件失败"), "读取事件失败")
+		return
+	}
+	h.OK(item, "查询成功")
+}

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

@@ -0,0 +1,42 @@
+package router
+
+import (
+	"os"
+
+	"github.com/gin-gonic/gin"
+	log "github.com/go-admin-team/go-admin-core/logger"
+	"github.com/go-admin-team/go-admin-core/sdk"
+	"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"
+)
+
+type registrar func(*gin.RouterGroup, *jwt.GinJWTMiddleware)
+
+var registrars = []registrar{registerEventRouter}
+
+func InitRouter() {
+	engine, ok := sdk.Runtime.GetEngine().(*gin.Engine)
+	if !ok || engine == nil {
+		log.Error("Bell business router requires Gin engine")
+		return
+	}
+	authMiddleware, err := middleware.AuthInit()
+	if err != nil {
+		log.Errorf("Bell business JWT init error: %v", err)
+		return
+	}
+	v1 := engine.Group("/api/v1/bell")
+	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/app/bell/router/rule_alert.go

@@ -0,0 +1,31 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
+
+	"go-admin/app/bell/alert"
+	"go-admin/app/bell/rule"
+	"go-admin/common/middleware"
+)
+
+func init() {
+	registrars = append(registrars, registerRuleAlertRouter)
+}
+
+func registerRuleAlertRouter(v1 *gin.RouterGroup, authMiddleware *jwt.GinJWTMiddleware) {
+	rules := rule.Handler{}
+	alerts := alert.Handler{}
+	secured := v1.Group("").Use(authMiddleware.MiddlewareFunc()).Use(middleware.AuthCheckRole())
+	{
+		secured.GET("/rules", rules.List)
+		secured.POST("/rules", rules.Create)
+		secured.PUT("/rules/:id", rules.Update)
+		secured.PUT("/rules/:id/enabled", rules.SetEnabled)
+
+		secured.GET("/alerts", alerts.List)
+		secured.GET("/alerts/:id", alerts.Get)
+		secured.GET("/events", alerts.ListEvents)
+		secured.GET("/events/:id/rule-results", alerts.EventResults)
+	}
+}

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

@@ -0,0 +1,13 @@
+package router
+
+import (
+	"github.com/gin-gonic/gin"
+	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
+
+	"go-admin/app/bell/synthetic"
+)
+
+func registerSyntheticRouter(v1 *gin.RouterGroup, authMiddleware *jwt.GinJWTMiddleware) {
+	handler := synthetic.Handler{}
+	v1.POST("/synthetic-events", authMiddleware.MiddlewareFunc(), handler.Create)
+}

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

@@ -0,0 +1,100 @@
+package rule
+
+import (
+	"errors"
+	"net/http"
+
+	"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"`
+}
+
+func (h Handler) List(c *gin.Context) {
+	var query PageQuery
+	h.MakeContext(c).MakeOrm().Bind(&query, binding.Form)
+	if h.Errors != nil {
+		h.Error(http.StatusBadRequest, ErrInvalid, "查询条件不正确")
+		return
+	}
+	items, count, err := NewService(h.Orm).List(c.Request.Context(), query)
+	if err != nil {
+		h.Logger.Errorf("list Bell rules failed: %v", err)
+		h.Error(http.StatusInternalServerError, errors.New("读取规则失败"), "读取规则失败")
+		return
+	}
+	page, size := pageValues(query.PageIndex, query.PageSize)
+	h.PageOK(items, int(count), page, size, "查询成功")
+}
+
+func (h Handler) Create(c *gin.Context) {
+	if !isAdmin(c) {
+		h.MakeContext(c).Error(http.StatusForbidden, errors.New("仅管理员可修改规则"), "仅管理员可修改规则")
+		return
+	}
+	var input WriteInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil {
+		h.Error(http.StatusBadRequest, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	item, err := NewService(h.Orm).Create(c.Request.Context(), input, user.GetUserId(c))
+	h.writeResult(item, err)
+}
+
+func (h Handler) Update(c *gin.Context) {
+	if !isAdmin(c) {
+		h.MakeContext(c).Error(http.StatusForbidden, errors.New("仅管理员可修改规则"), "仅管理员可修改规则")
+		return
+	}
+	var input WriteInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil {
+		h.Error(http.StatusBadRequest, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	item, err := NewService(h.Orm).Update(c.Request.Context(), c.Param("id"), input, user.GetUserId(c))
+	h.writeResult(item, err)
+}
+
+func (h Handler) SetEnabled(c *gin.Context) {
+	if !isAdmin(c) {
+		h.MakeContext(c).Error(http.StatusForbidden, errors.New("仅管理员可修改规则"), "仅管理员可修改规则")
+		return
+	}
+	var input enabledInput
+	h.MakeContext(c).MakeOrm().Bind(&input, binding.JSON)
+	if h.Errors != nil || input.Enabled == nil {
+		h.Error(http.StatusBadRequest, ErrInvalid, ErrInvalid.Error())
+		return
+	}
+	item, err := NewService(h.Orm).SetEnabled(c.Request.Context(), c.Param("id"), *input.Enabled, user.GetUserId(c))
+	h.writeResult(item, err)
+}
+
+func (h Handler) writeResult(item Rule, err error) {
+	switch {
+	case err == nil:
+		h.OK(item, "保存成功")
+	case errors.Is(err, ErrInvalid):
+		h.Error(http.StatusBadRequest, ErrInvalid, ErrInvalid.Error())
+	case errors.Is(err, ErrNotFound):
+		h.Error(http.StatusNotFound, ErrNotFound, ErrNotFound.Error())
+	default:
+		h.Logger.Errorf("write Bell rule failed: %v", err)
+		h.Error(http.StatusConflict, errors.New("规则编码已存在或保存失败"), "规则编码已存在或保存失败")
+	}
+}
+
+func isAdmin(c *gin.Context) bool {
+	claims := jwt.ExtractClaims(c)
+	role, _ := claims[jwt.RoleKey].(string)
+	return role == "admin"
+}

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

@@ -0,0 +1,22 @@
+package rule
+
+import "time"
+
+// Rule is the current editable rule definition. Historical evaluations keep a
+// complete versioned snapshot, so editing this row never rewrites history.
+type Rule struct {
+	ID               string    `json:"id" gorm:"type:uuid;primaryKey"`
+	Code             string    `json:"code" gorm:"size:128;not null;uniqueIndex"`
+	Name             string    `json:"name" gorm:"size:128;not null"`
+	Enabled          bool      `json:"enabled" gorm:"not null;default:true;index"`
+	EventType        *string   `json:"eventType,omitempty" gorm:"size:128"`
+	MinimumSeverity  string    `json:"minimumSeverity" gorm:"size:16;not null"`
+	LocationContains *string   `json:"locationContains,omitempty" gorm:"size:128"`
+	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 (Rule) TableName() string { return "bell_rules" }

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

@@ -0,0 +1,124 @@
+package rule
+
+import (
+	"context"
+	"errors"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+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, query PageQuery) ([]Rule, int64, error) {
+	page, size := pageValues(query.PageIndex, query.PageSize)
+	db := s.DB.WithContext(ctx).Model(&Rule{})
+	if name := strings.TrimSpace(query.Name); name != "" {
+		db = db.Where("name ILIKE ? OR code 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
+	}
+	items := make([]Rule, 0)
+	err := db.Order("created_at DESC, id DESC").Offset((page - 1) * size).Limit(size).Find(&items).Error
+	return items, count, err
+}
+
+func (s Service) Create(ctx context.Context, input WriteInput, actorID int) (Rule, error) {
+	normalized, err := Normalize(input, true)
+	if err != nil {
+		return Rule{}, err
+	}
+	now := time.Now().UTC()
+	item := Rule{
+		ID: uuid.NewString(), Code: normalized.Code, Name: normalized.Name, Enabled: true,
+		EventType: normalized.EventType, MinimumSeverity: normalized.MinimumSeverity,
+		LocationContains: normalized.LocationContains, Version: 1,
+		CreatedBy: actorID, UpdatedBy: actorID, CreatedAt: now, UpdatedAt: now,
+	}
+	if err = s.DB.WithContext(ctx).Create(&item).Error; err != nil {
+		return Rule{}, err
+	}
+	return item, nil
+}
+
+func (s Service) Update(ctx context.Context, id string, input WriteInput, actorID int) (Rule, error) {
+	if _, err := uuid.Parse(id); err != nil {
+		return Rule{}, ErrNotFound
+	}
+	normalized, err := Normalize(input, false)
+	if err != nil {
+		return Rule{}, err
+	}
+	var item Rule
+	err = s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&item, "id = ?", id).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return ErrNotFound
+			}
+			return err
+		}
+		updates := map[string]any{
+			"name": normalized.Name, "event_type": normalized.EventType,
+			"minimum_severity": normalized.MinimumSeverity, "location_contains": normalized.LocationContains,
+			"version": item.Version + 1, "updated_by": actorID, "updated_at": time.Now().UTC(),
+		}
+		if err := tx.Model(&item).Updates(updates).Error; err != nil {
+			return err
+		}
+		return tx.First(&item, "id = ?", id).Error
+	})
+	return item, err
+}
+
+func (s Service) SetEnabled(ctx context.Context, id string, enabled bool, actorID int) (Rule, error) {
+	if _, err := uuid.Parse(id); err != nil {
+		return Rule{}, ErrNotFound
+	}
+	var item Rule
+	err := s.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&item, "id = ?", id).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return ErrNotFound
+			}
+			return err
+		}
+		if item.Enabled == enabled {
+			return nil
+		}
+		if err := tx.Model(&item).Updates(map[string]any{
+			"enabled": enabled, "version": item.Version + 1,
+			"updated_by": actorID, "updated_at": time.Now().UTC(),
+		}).Error; err != nil {
+			return err
+		}
+		return tx.First(&item, "id = ?", id).Error
+	})
+	return item, err
+}
+
+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/rule/validation.go

@@ -0,0 +1,70 @@
+package rule
+
+import (
+	"errors"
+	"regexp"
+	"strings"
+	"unicode/utf8"
+)
+
+var (
+	ErrInvalid  = errors.New("规则内容不符合要求")
+	ErrNotFound = errors.New("规则不存在")
+	codePattern = regexp.MustCompile(`^[a-z0-9][a-z0-9_-]{1,127}$`)
+)
+
+type WriteInput struct {
+	Code             string  `json:"code"`
+	Name             string  `json:"name"`
+	EventType        *string `json:"eventType"`
+	MinimumSeverity  string  `json:"minimumSeverity"`
+	LocationContains *string `json:"locationContains"`
+}
+
+func Normalize(input WriteInput, requireCode bool) (WriteInput, error) {
+	input.Code = strings.ToLower(strings.TrimSpace(input.Code))
+	input.Name = strings.TrimSpace(input.Name)
+	input.MinimumSeverity = strings.ToLower(strings.TrimSpace(input.MinimumSeverity))
+	if requireCode && !codePattern.MatchString(input.Code) {
+		return WriteInput{}, ErrInvalid
+	}
+	if !validText(input.Name, 128) || !validSeverity(input.MinimumSeverity) {
+		return WriteInput{}, ErrInvalid
+	}
+	var err error
+	if input.EventType, err = optionalText(input.EventType, 128); err != nil {
+		return WriteInput{}, err
+	}
+	if input.LocationContains, err = optionalText(input.LocationContains, 128); err != nil {
+		return WriteInput{}, err
+	}
+	return input, nil
+}
+
+func validSeverity(value string) bool {
+	switch value {
+	case "low", "medium", "high", "critical":
+		return true
+	default:
+		return false
+	}
+}
+
+func optionalText(value *string, max int) (*string, error) {
+	if value == nil {
+		return nil, nil
+	}
+	normalized := strings.TrimSpace(*value)
+	if normalized == "" {
+		return nil, nil
+	}
+	if !validText(normalized, max) {
+		return nil, ErrInvalid
+	}
+	return &normalized, nil
+}
+
+func validText(value string, max int) bool {
+	return value != "" && utf8.ValidString(value) && utf8.RuneCountInString(value) <= max &&
+		!strings.ContainsAny(value, "\x00\r\n")
+}

Bell/server/app/bell/synthetic/config.go

@@ -0,0 +1,19 @@
+package synthetic
+
+import (
+	"os"
+	"strings"
+)
+
+const EnabledEnv = "BELL_SYNTHETIC_EVENTS_ENABLED"
+
+// Enabled requires both a non-production runtime and an explicit opt-in.
+func Enabled(mode string, getenv func(string) string) bool {
+	if strings.EqualFold(strings.TrimSpace(mode), "prod") || strings.EqualFold(strings.TrimSpace(mode), "production") {
+		return false
+	}
+	value := strings.ToLower(strings.TrimSpace(getenv(EnabledEnv)))
+	return value == "true" || value == "1"
+}
+
+func EnabledFromEnvironment(mode string) bool { return Enabled(mode, os.Getenv) }

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

@@ -0,0 +1,58 @@
+package synthetic
+
+import (
+	"errors"
+	"net/http"
+
+	"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"
+
+	"go-admin/app/bell/event"
+)
+
+const maxRequestBytes = 64 * 1024
+
+type Handler struct{ api.Api }
+
+func IsAdministrator(c *gin.Context) bool {
+	claims := jwt.ExtractClaims(c)
+	role, _ := claims[jwt.RoleKey].(string)
+	return role == "admin"
+}
+
+func (h Handler) Create(c *gin.Context) {
+	if !IsAdministrator(c) {
+		h.MakeContext(c).Error(http.StatusForbidden, errors.New("无权使用合成事件入口"), "无权使用合成事件入口")
+		return
+	}
+	if err := restoreRequestBody(c); err != nil {
+		h.MakeContext(c).Error(http.StatusBadRequest, errors.New("请求内容格式不正确"), "请求内容格式不正确")
+		return
+	}
+	var request CreateRequest
+	h.MakeContext(c).MakeOrm().Bind(&request, binding.JSON)
+	if h.Errors != nil {
+		h.Error(http.StatusBadRequest, errors.New("请求内容格式不正确"), "请求内容格式不正确")
+		return
+	}
+	result, err := event.NewService(h.Orm).Ingest(c.Request.Context(), request.Command(), user.GetUserId(c))
+	if err != nil {
+		switch {
+		case errors.Is(err, event.ErrInvalid):
+			h.Error(http.StatusBadRequest, event.ErrInvalid, event.ErrInvalid.Error())
+		case errors.Is(err, event.ErrConflict):
+			h.Error(http.StatusConflict, event.ErrConflict, event.ErrConflict.Error())
+		default:
+			h.Logger.Errorf("synthetic event ingest failed: %v", err)
+			h.Error(http.StatusInternalServerError, errors.New("合成事件写入失败"), "合成事件写入失败")
+		}
+		return
+	}
+	h.OK(result, "合成事件已接收")
+	// The client already received the full response. Keep only a fixed marker
+	// for GoAdmin's generic operation audit, which runs after the handler.
+	c.Set("result", gin.H{"code": http.StatusOK, "data": "<redacted>"})
+}

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

@@ -0,0 +1,53 @@
+package synthetic
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+const (
+	requestBodyKey      = "bell.synthetic.request-body"
+	requestBodyErrorKey = "bell.synthetic.request-body-error"
+)
+
+var redactedRequestBody = []byte(`{"redacted":true}`)
+
+// RedactRequestBody runs before GoAdmin's operation logger. It keeps the real
+// body only in the request context for the handler and exposes a fixed marker
+// to the generic audit middleware so event payloads never enter sys_opera_log.
+func RedactRequestBody() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if c.Request.Method != http.MethodPost || c.Request.URL.Path != "/api/v1/bell/synthetic-events" {
+			c.Next()
+			return
+		}
+		body, err := io.ReadAll(io.LimitReader(c.Request.Body, maxRequestBytes+1))
+		if err != nil {
+			c.Set(requestBodyErrorKey, err)
+		} else if len(body) > maxRequestBytes {
+			c.Set(requestBodyErrorKey, errors.New("request body too large"))
+		} else {
+			c.Set(requestBodyKey, body)
+		}
+		_ = c.Request.Body.Close()
+		c.Request.Body = io.NopCloser(bytes.NewReader(redactedRequestBody))
+		c.Next()
+	}
+}
+
+func restoreRequestBody(c *gin.Context) error {
+	if value, ok := c.Get(requestBodyErrorKey); ok {
+		return value.(error)
+	}
+	value, ok := c.Get(requestBodyKey)
+	if !ok {
+		return errors.New("synthetic request body was not captured")
+	}
+	body := value.([]byte)
+	c.Request.Body = io.NopCloser(bytes.NewReader(body))
+	return nil
+}

Bell/server/app/bell/synthetic/request.go

@@ -0,0 +1,27 @@
+package synthetic
+
+import (
+	"time"
+
+	"go-admin/app/bell/event"
+)
+
+const ProducerID = "bell.synthetic"
+
+type CreateRequest struct {
+	SourceEventID string         `json:"sourceEventId" binding:"required"`
+	EventType     string         `json:"eventType" binding:"required"`
+	OccurredAt    time.Time      `json:"occurredAt" binding:"required"`
+	Location      string         `json:"location" binding:"required"`
+	Severity      string         `json:"severity" binding:"required"`
+	EvidenceRef   *string        `json:"evidenceRef,omitempty"`
+	Attributes    map[string]any `json:"attributes"`
+}
+
+func (r CreateRequest) Command() event.Command {
+	return event.Command{
+		ProducerID: ProducerID, SourceEventID: r.SourceEventID, EventType: r.EventType,
+		OccurredAt: r.OccurredAt, Location: r.Location, Severity: r.Severity,
+		EvidenceRef: r.EvidenceRef, Attributes: r.Attributes,
+	}
+}

Bell/server/cmd/api/server.go

@@ -20,6 +20,9 @@ import (
 
 	"go-admin/app/admin/models"
 	"go-admin/app/admin/router"
+	"go-admin/app/bell/alert_lifecycle"
+	bellrouter "go-admin/app/bell/router"
+	"go-admin/app/bell/synthetic"
 	"go-admin/common/bellconfig"
 	"go-admin/common/database"
 	"go-admin/common/global"
@@ -54,6 +57,7 @@ func init() {
 
 	//注册路由 fixme 其他应用的路由，在本目录新建文件放在init方法
 	AppRouters = append(AppRouters, router.InitRouter)
+	AppRouters = append(AppRouters, bellrouter.InitRouter)
 }
 
 func setup() error {
@@ -178,7 +182,9 @@ func initRouter() {
 	//r.Use(middleware.Metrics())
 	r.Use(common.Sentinel()).
 		Use(common.RequestId(pkg.TrafficKey)).
-		Use(api.SetRequestLogger)
+		Use(api.SetRequestLogger).
+		Use(synthetic.RedactRequestBody()).
+		Use(alert_lifecycle.RedactRequestBody())
 
 	common.InitMiddleware(r)
 

Bell/server/cmd/migrate/migration/version-local/2026082909001_bell_event_receipt.go

@@ -0,0 +1,39 @@
+package version_local
+
+import (
+	"runtime"
+
+	"gorm.io/gorm"
+
+	"go-admin/app/bell/event"
+	"go-admin/app/bell/receipt"
+	"go-admin/cmd/migrate/migration"
+	common "go-admin/common/models"
+)
+
+func init() {
+	_, fileName, _, _ := runtime.Caller(0)
+	migration.Migrate.SetVersion(migration.GetFilename(fileName), migrateBellEventReceipt)
+}
+
+func migrateBellEventReceipt(db *gorm.DB, version string) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.AutoMigrate(new(event.Event), new(receipt.Receipt), new(receipt.IngestAudit)); err != nil {
+			return err
+		}
+		statements := []string{
+			`ALTER TABLE bell_event_receipts ADD CONSTRAINT bell_event_receipts_event_fk FOREIGN KEY (event_id) REFERENCES bell_events(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+			`ALTER TABLE bell_events ADD CONSTRAINT bell_events_severity_check CHECK (severity IN ('low','medium','high','critical'))`,
+			`CREATE OR REPLACE FUNCTION bell_reject_immutable_fact() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN RAISE EXCEPTION 'Bell immutable fact cannot be changed' USING ERRCODE = '55000'; END $$`,
+			`CREATE TRIGGER bell_events_immutable BEFORE UPDATE OR DELETE ON bell_events FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+			`CREATE TRIGGER bell_event_receipts_immutable BEFORE UPDATE OR DELETE ON bell_event_receipts FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+			`CREATE TRIGGER bell_event_ingest_audits_immutable BEFORE UPDATE OR DELETE ON bell_event_ingest_audits FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+		}
+		for _, statement := range statements {
+			if err := tx.Exec(statement).Error; err != nil {
+				return err
+			}
+		}
+		return tx.Create(&common.Migration{Version: version}).Error
+	})
+}

Bell/server/cmd/migrate/migration/version-local/2026082909301_bell_rule_alert.go

@@ -0,0 +1,257 @@
+package version_local
+
+import (
+	"fmt"
+	"runtime"
+
+	"gorm.io/gorm"
+
+	"go-admin/app/bell/alert"
+	"go-admin/app/bell/evaluation"
+	"go-admin/app/bell/rule"
+	"go-admin/cmd/migrate/migration"
+	common "go-admin/common/models"
+)
+
+func init() {
+	_, fileName, _, _ := runtime.Caller(0)
+	migration.Migrate.SetVersion(migration.GetFilename(fileName), migrateBellRuleAlert)
+}
+
+func migrateBellRuleAlert(db *gorm.DB, version string) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.AutoMigrate(new(rule.Rule), new(evaluation.Evaluation), new(alert.Alert), new(alert.AlertEvent), new(alert.RuleMatch), new(runtimeCasbinRule)); err != nil {
+			return err
+		}
+		for _, statement := range bellRuleAlertSchemaSQL {
+			if err := tx.Exec(statement).Error; err != nil {
+				return err
+			}
+		}
+		if err := seedBellRuleAlertAccess(tx); err != nil {
+			return err
+		}
+		return tx.Create(&common.Migration{Version: version}).Error
+	})
+}
+
+var bellRuleAlertSchemaSQL = []string{
+	`ALTER TABLE bell_rules ADD CONSTRAINT bell_rules_severity_check CHECK (minimum_severity IN ('low','medium','high','critical'))`,
+	`ALTER TABLE bell_rules ADD CONSTRAINT bell_rules_version_check CHECK (version > 0)`,
+	`ALTER TABLE bell_alerts ADD CONSTRAINT bell_alerts_status_check CHECK (status IN ('open','acknowledged','closed'))`,
+	`ALTER TABLE bell_alerts ADD CONSTRAINT bell_alerts_severity_check CHECK (severity IN ('low','medium','high','critical'))`,
+	`ALTER TABLE bell_rule_evaluations ADD CONSTRAINT bell_rule_evaluations_event_fk FOREIGN KEY (event_id) REFERENCES bell_events(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_rule_evaluations ADD CONSTRAINT bell_rule_evaluations_rule_fk FOREIGN KEY (rule_id) REFERENCES bell_rules(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_alerts ADD CONSTRAINT bell_alerts_rule_fk FOREIGN KEY (primary_rule_id) REFERENCES bell_rules(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_alert_events ADD CONSTRAINT bell_alert_events_alert_fk FOREIGN KEY (alert_id) REFERENCES bell_alerts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_alert_events ADD CONSTRAINT bell_alert_events_event_fk FOREIGN KEY (event_id) REFERENCES bell_events(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_rule_matches ADD CONSTRAINT bell_rule_matches_alert_fk FOREIGN KEY (alert_id) REFERENCES bell_alerts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_rule_matches ADD CONSTRAINT bell_rule_matches_event_fk FOREIGN KEY (event_id) REFERENCES bell_events(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_rule_matches ADD CONSTRAINT bell_rule_matches_rule_fk FOREIGN KEY (rule_id) REFERENCES bell_rules(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`CREATE UNIQUE INDEX bell_alert_open_correlation_idx ON bell_alerts(primary_rule_id, correlation_key) WHERE status = 'open'`,
+	`CREATE INDEX bell_alert_events_event_idx ON bell_alert_events(event_id, alert_id)`,
+	`CREATE TRIGGER bell_rule_evaluations_immutable BEFORE UPDATE OR DELETE ON bell_rule_evaluations FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`CREATE TRIGGER bell_alert_events_immutable BEFORE UPDATE OR DELETE ON bell_alert_events FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`CREATE TRIGGER bell_rule_matches_immutable BEFORE UPDATE OR DELETE ON bell_rule_matches FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`CREATE OR REPLACE FUNCTION bell_evaluate_new_event() RETURNS trigger LANGUAGE plpgsql AS $$
+DECLARE
+    current_rule bell_rules%ROWTYPE;
+    is_match boolean;
+    reasons text[];
+    explanation_text text;
+    snapshot jsonb;
+    target_alert_id uuid;
+    correlation text;
+BEGIN
+    FOR current_rule IN SELECT * FROM bell_rules WHERE enabled = true ORDER BY id LOOP
+        reasons := ARRAY[]::text[];
+        IF current_rule.event_type IS NOT NULL AND current_rule.event_type <> NEW.event_type THEN
+            reasons := array_append(reasons, '事件类型不匹配');
+        END IF;
+        IF array_position(ARRAY['low','medium','high','critical'], NEW.severity) <
+           array_position(ARRAY['low','medium','high','critical'], current_rule.minimum_severity) THEN
+            reasons := array_append(reasons, '风险等级低于阈值');
+        END IF;
+        IF current_rule.location_contains IS NOT NULL AND
+           position(lower(current_rule.location_contains) in lower(NEW.location)) = 0 THEN
+            reasons := array_append(reasons, '地点条件不匹配');
+        END IF;
+        is_match := cardinality(reasons) = 0;
+        explanation_text := CASE WHEN is_match THEN '全部条件命中' ELSE array_to_string(reasons, '；') END;
+        snapshot := jsonb_build_object(
+            'id', current_rule.id, 'code', current_rule.code, 'name', current_rule.name,
+            'enabled', current_rule.enabled, 'eventType', current_rule.event_type,
+            'minimumSeverity', current_rule.minimum_severity,
+            'locationContains', current_rule.location_contains, 'version', current_rule.version
+        );
+        INSERT INTO bell_rule_evaluations(event_id, rule_id, rule_version, rule_snapshot, matched, explanation, evaluated_at)
+        VALUES(NEW.id, current_rule.id, current_rule.version, snapshot, is_match, explanation_text, now());
+        IF NOT is_match THEN
+            CONTINUE;
+        END IF;
+        correlation := lower(trim(NEW.location));
+        INSERT INTO bell_alerts(id, primary_rule_id, correlation_key, status, severity, summary, location, created_at, updated_at)
+        VALUES(gen_random_uuid(), current_rule.id, correlation, 'open', NEW.severity,
+               left(current_rule.name || '：' || NEW.event_type, 256), NEW.location, now(), now())
+        ON CONFLICT(primary_rule_id, correlation_key) WHERE status = 'open'
+        DO UPDATE SET
+            updated_at = now(),
+            severity = CASE
+                WHEN array_position(ARRAY['low','medium','high','critical'], EXCLUDED.severity) >
+                     array_position(ARRAY['low','medium','high','critical'], bell_alerts.severity)
+                THEN EXCLUDED.severity ELSE bell_alerts.severity END
+        RETURNING id INTO target_alert_id;
+        INSERT INTO bell_alert_events(alert_id, event_id, linked_at)
+        VALUES(target_alert_id, NEW.id, now());
+        INSERT INTO bell_rule_matches(event_id, rule_id, alert_id, rule_version, rule_snapshot, explanation, matched_at)
+        VALUES(NEW.id, current_rule.id, target_alert_id, current_rule.version, snapshot, explanation_text, now());
+    END LOOP;
+    RETURN NEW;
+END $$`,
+	`CREATE TRIGGER bell_events_evaluate_rules AFTER INSERT ON bell_events FOR EACH ROW EXECUTE FUNCTION bell_evaluate_new_event()`,
+}
+
+type menuSeed struct {
+	ID         int
+	Permission string
+}
+
+type apiSeed struct {
+	ID     int
+	Path   string
+	Action string
+}
+
+// runtimeCasbinRule deliberately matches the table used by the frozen
+// go-admin-core gorm adapter. The legacy SysCasbinRule model is not the table
+// loaded by middleware.AuthCheckRole in this baseline.
+type runtimeCasbinRule struct {
+	ID    uint   `gorm:"primaryKey;autoIncrement"`
+	Ptype string `gorm:"size:100;uniqueIndex:idx_casbin_rule"`
+	V0    string `gorm:"size:100;uniqueIndex:idx_casbin_rule"`
+	V1    string `gorm:"size:100;uniqueIndex:idx_casbin_rule"`
+	V2    string `gorm:"size:100;uniqueIndex:idx_casbin_rule"`
+	V3    string `gorm:"size:100;uniqueIndex:idx_casbin_rule"`
+	V4    string `gorm:"size:100;uniqueIndex:idx_casbin_rule"`
+	V5    string `gorm:"size:100;uniqueIndex:idx_casbin_rule"`
+}
+
+func (runtimeCasbinRule) TableName() string { return "casbin_rule" }
+
+func seedBellRuleAlertAccess(tx *gorm.DB) error {
+	// db.sql contains explicit primary keys, so PostgreSQL sequences can lag
+	// behind the imported baseline data. Align them before allocating any new
+	// menu, API or role IDs.
+	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));
+        SELECT setval(pg_get_serial_sequence('sys_role','role_id'), GREATEST((SELECT max(role_id) FROM sys_role),1))`).Error; err != nil {
+		return err
+	}
+
+	root, err := insertMenu(tx, 0, "BellWarning", "预警中心", "warning", "/bell", "M", "", "", "Layout", 1)
+	if err != nil {
+		return err
+	}
+	alerts, err := insertMenu(tx, root.ID, "BellAlerts", "预警管理", "bell", "alerts", "C", "bell:alert:list", "", "/bell/alerts/index", 1)
+	if err != nil {
+		return err
+	}
+	events, err := insertMenu(tx, root.ID, "BellEvents", "事件查询", "list", "events", "C", "bell:event:list", "", "/bell/events/index", 2)
+	if err != nil {
+		return err
+	}
+	rules, err := insertMenu(tx, root.ID, "BellRules", "规则配置", "guide", "rules", "C", "bell:rule:list", "", "/bell/rules/index", 3)
+	if err != nil {
+		return err
+	}
+	addRule, err := insertMenu(tx, rules.ID, "", "新增规则", "", "", "F", "bell:rule:add", "POST", "", 1)
+	if err != nil {
+		return err
+	}
+	editRule, err := insertMenu(tx, rules.ID, "", "修改规则", "", "", "F", "bell:rule:edit", "PUT", "", 2)
+	if err != nil {
+		return err
+	}
+
+	apiSpecs := []struct{ title, path, action string }{
+		{"预警列表", "/api/v1/bell/alerts", "GET"}, {"预警详情", "/api/v1/bell/alerts/:id", "GET"},
+		{"事件列表", "/api/v1/bell/events", "GET"}, {"事件详情", "/api/v1/bell/events/:id", "GET"},
+		{"事件规则结果", "/api/v1/bell/events/:id/rule-results", "GET"},
+		{"规则列表", "/api/v1/bell/rules", "GET"}, {"新增规则", "/api/v1/bell/rules", "POST"},
+		{"修改规则", "/api/v1/bell/rules/:id", "PUT"}, {"启停规则", "/api/v1/bell/rules/:id/enabled", "PUT"},
+	}
+	apis := make([]apiSeed, 0, len(apiSpecs))
+	for _, spec := range apiSpecs {
+		seed, seedErr := insertAPI(tx, spec.title, spec.path, spec.action)
+		if seedErr != nil {
+			return seedErr
+		}
+		apis = append(apis, seed)
+	}
+	links := map[int][]apiSeed{
+		alerts.ID: {apis[0], apis[1]}, events.ID: {apis[2], apis[3], apis[4]}, rules.ID: {apis[5]},
+		addRule.ID: {apis[6]}, editRule.ID: {apis[7], apis[8]},
+	}
+	for menuID, menuAPIs := range links {
+		for _, item := range menuAPIs {
+			if err := tx.Exec("INSERT INTO sys_menu_api_rule(sys_menu_menu_id, sys_api_id) VALUES(?, ?) ON CONFLICT DO NOTHING", menuID, item.ID).Error; err != nil {
+				return err
+			}
+		}
+	}
+
+	var operatorRoleID 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(&operatorRoleID).Error; err != nil {
+		return err
+	}
+	if operatorRoleID == 0 {
+		if err := tx.Raw(`INSERT INTO sys_role(role_name,status,role_key,role_sort,flag,remark,admin,data_scope,create_by,update_by,created_at,updated_at)
+            VALUES('处置员','2','operator',2,'','仅访问 Bell 预警处理入口',false,'',1,1,now(),now())
+            RETURNING role_id`).Scan(&operatorRoleID).Error; err != nil {
+			return err
+		}
+	}
+	for _, menu := range []menuSeed{root, alerts, events, rules} {
+		if err := tx.Exec("INSERT INTO sys_role_menu(role_id, menu_id) VALUES(?, ?) ON CONFLICT DO NOTHING", operatorRoleID, menu.ID).Error; err != nil {
+			return err
+		}
+	}
+	for _, item := range apis {
+		if item.Action != "GET" {
+			continue
+		}
+		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 insertMenu(tx *gorm.DB, parentID int, name, title, icon, path, menuType, permission, action, component string, sort int) (menuSeed, 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, parentID, component, sort).Scan(&id).Error
+	if err != nil {
+		return menuSeed{}, err
+	}
+	paths := fmt.Sprintf("/0/%d", id)
+	if parentID != 0 {
+		var parentPaths string
+		if err = tx.Raw("SELECT paths FROM sys_menu WHERE menu_id = ?", parentID).Scan(&parentPaths).Error; err != nil {
+			return menuSeed{}, err
+		}
+		paths = fmt.Sprintf("%s/%d", parentPaths, id)
+	}
+	if err = tx.Exec("UPDATE sys_menu SET paths = ? WHERE menu_id = ?", paths, id).Error; err != nil {
+		return menuSeed{}, err
+	}
+	return menuSeed{ID: id, Permission: permission}, nil
+}
+
+func insertAPI(tx *gorm.DB, title, path, action string) (apiSeed, 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 apiSeed{ID: id, Path: path, Action: action}, err
+}

Bell/server/cmd/migrate/migration/version-local/2026082911101_bell_alert_lifecycle.go

@@ -0,0 +1,96 @@
+package version_local
+
+import (
+	"runtime"
+
+	"gorm.io/gorm"
+
+	"go-admin/app/bell/alert_lifecycle"
+	"go-admin/cmd/migrate/migration"
+	common "go-admin/common/models"
+)
+
+func init() {
+	_, fileName, _, _ := runtime.Caller(0)
+	migration.Migrate.SetVersion(migration.GetFilename(fileName), migrateBellAlertLifecycle)
+}
+
+func migrateBellAlertLifecycle(db *gorm.DB, version string) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.AutoMigrate(new(alert_lifecycle.Fact), new(alert_lifecycle.RejectionAudit)); err != nil {
+			return err
+		}
+		for _, statement := range alertLifecycleSQL {
+			if err := tx.Exec(statement).Error; err != nil {
+				return err
+			}
+		}
+		if err := seedAlertLifecycleAccess(tx); err != nil {
+			return err
+		}
+		return tx.Create(&common.Migration{Version: version}).Error
+	})
+}
+
+var alertLifecycleSQL = []string{
+	`ALTER TABLE bell_alerts ADD COLUMN acknowledged_by bigint, ADD COLUMN acknowledged_by_name varchar(128), ADD COLUMN acknowledged_at timestamptz, ADD COLUMN closed_by bigint, ADD COLUMN closed_by_name varchar(128), ADD COLUMN closed_at timestamptz, ADD COLUMN close_outcome varchar(32), ADD COLUMN close_note varchar(500)`,
+	`ALTER TABLE bell_alerts ADD CONSTRAINT bell_alert_ack_user_fk FOREIGN KEY (acknowledged_by) REFERENCES sys_user(user_id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_alerts ADD CONSTRAINT bell_alert_close_user_fk FOREIGN KEY (closed_by) REFERENCES sys_user(user_id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_alerts ADD CONSTRAINT bell_alert_close_outcome_check CHECK (close_outcome IS NULL OR close_outcome IN ('danger_confirmed','false_positive','site_normal','unable_to_confirm'))`,
+	`ALTER TABLE bell_alert_lifecycle_facts ADD CONSTRAINT bell_alert_lifecycle_alert_fk FOREIGN KEY (alert_id) REFERENCES bell_alerts(id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_alert_lifecycle_facts ADD CONSTRAINT bell_alert_lifecycle_actor_fk FOREIGN KEY (actor_id) REFERENCES sys_user(user_id) ON UPDATE RESTRICT ON DELETE RESTRICT`,
+	`ALTER TABLE bell_alert_lifecycle_facts ADD CONSTRAINT bell_alert_lifecycle_transition_check CHECK (transition IN ('acknowledged','closed'))`,
+	`ALTER TABLE bell_alert_lifecycle_facts ADD CONSTRAINT bell_alert_lifecycle_outcome_check CHECK (outcome IS NULL OR outcome IN ('danger_confirmed','false_positive','site_normal','unable_to_confirm'))`,
+	`CREATE TRIGGER bell_alert_lifecycle_immutable BEFORE UPDATE OR DELETE ON bell_alert_lifecycle_facts FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+	`CREATE TRIGGER bell_alert_lifecycle_rejections_immutable BEFORE UPDATE OR DELETE ON bell_alert_lifecycle_rejections FOR EACH ROW EXECUTE FUNCTION bell_reject_immutable_fact()`,
+}
+
+func seedAlertLifecycleAccess(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 alertMenuID int
+	if err := tx.Table("sys_menu").Select("menu_id").Where("permission = ?", "bell:alert:list").Scan(&alertMenuID).Error; err != nil || alertMenuID == 0 {
+		return gorm.ErrRecordNotFound
+	}
+	ackMenu, err := insertMenu(tx, alertMenuID, "", "开始处理", "", "", "F", "bell:alert:ack", "POST", "", 1)
+	if err != nil {
+		return err
+	}
+	closeMenu, err := insertMenu(tx, alertMenuID, "", "记录结果", "", "", "F", "bell:alert:close", "POST", "", 2)
+	if err != nil {
+		return err
+	}
+	specs := []struct{ title, path, action string }{{"预警处理时间线", "/api/v1/bell/alerts/:id/lifecycle", "GET"}, {"开始处理预警", "/api/v1/bell/alerts/:id/ack", "POST"}, {"记录结果并完成", "/api/v1/bell/alerts/:id/close", "POST"}}
+	apis := make([]apiSeed, 0, len(specs))
+	for _, spec := range specs {
+		item, itemErr := insertAPI(tx, spec.title, spec.path, spec.action)
+		if itemErr != nil {
+			return itemErr
+		}
+		apis = append(apis, item)
+	}
+	for _, link := range []struct {
+		menu int
+		api  apiSeed
+	}{{alertMenuID, apis[0]}, {ackMenu.ID, apis[1]}, {closeMenu.ID, apis[2]}} {
+		if err := tx.Exec("INSERT INTO sys_menu_api_rule(sys_menu_menu_id,sys_api_id) VALUES(?,?) ON CONFLICT DO NOTHING", link.menu, link.api.ID).Error; err != nil {
+			return err
+		}
+	}
+	var operatorRoleID int
+	if err := tx.Table("sys_role").Select("role_id").Where("role_key = ?", "operator").Scan(&operatorRoleID).Error; err != nil || operatorRoleID == 0 {
+		return gorm.ErrRecordNotFound
+	}
+	for _, menuID := range []int{ackMenu.ID, closeMenu.ID} {
+		if err := tx.Exec("INSERT INTO sys_role_menu(role_id,menu_id) VALUES(?,?) ON CONFLICT DO NOTHING", operatorRoleID, menuID).Error; err != nil {
+			return err
+		}
+	}
+	for _, item := range apis {
+		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
+}

Bell/server/cmd/migrate/migration/version-local/2026082917001_bell_minimal_menu.go

@@ -0,0 +1,52 @@
+package version_local
+
+import (
+	"runtime"
+
+	"gorm.io/gorm"
+
+	"go-admin/cmd/migrate/migration"
+	common "go-admin/common/models"
+)
+
+func init() {
+	_, fileName, _, _ := runtime.Caller(0)
+	migration.Migrate.SetVersion(migration.GetFilename(fileName), migrateBellMinimalMenu)
+}
+
+func migrateBellMinimalMenu(db *gorm.DB, version string) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		if err := ApplyBellMinimalMenuVisibility(tx); err != nil {
+			return err
+		}
+		return tx.Create(&common.Migration{Version: version}).Error
+	})
+}
+
+// ApplyBellMinimalMenuVisibility keeps the imported GoAdmin menu records for
+// rollback and upgrades, but exposes only Bell product entries and the three
+// RBAC administration pages required to maintain local accounts.
+func ApplyBellMinimalMenuVisibility(tx *gorm.DB) error {
+	if err := tx.Exec(`
+		UPDATE sys_menu
+		SET visible = '1', updated_at = now()
+		WHERE menu_type IN ('M', 'C')
+		  AND deleted_at IS NULL
+		  AND visible IS DISTINCT FROM '1'
+	`).Error; err != nil {
+		return err
+	}
+
+	return tx.Exec(`
+		UPDATE sys_menu
+		SET visible = '0', updated_at = now()
+		WHERE menu_type IN ('M', 'C')
+		  AND deleted_at IS NULL
+		  AND (
+			path IN ('/admin', '/admin/sys-user', '/admin/sys-menu', '/admin/sys-role', '/bell')
+			OR permission IN ('admin:sysUser:list', 'admin:sysMenu:list', 'admin:sysRole:list',
+			                  'bell:alert:list', 'bell:event:list', 'bell:rule:list')
+		  )
+		  AND visible IS DISTINCT FROM '0'
+	`).Error
+}

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/tests/bell_alert_lifecycle/integration_test.go

@@ -0,0 +1,172 @@
+package bell_alert_lifecycle_test
+
+import (
+	"context"
+	"os"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+
+	adminmodels "go-admin/app/admin/models"
+	"go-admin/app/bell/alert"
+	"go-admin/app/bell/alert_lifecycle"
+	"go-admin/app/bell/event"
+	"go-admin/app/bell/rule"
+)
+
+func TestConcurrentLifecycleAndPersistence(t *testing.T) {
+	dsn := os.Getenv("BELL_ALERT_LIFECYCLE_TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("integration database not configured")
+	}
+	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	ctx := context.Background()
+	actors := createActors(t, db)
+	service := alert_lifecycle.NewService(db)
+	alertID := createAlert(t, db, "main")
+	const attempts = 20
+	var won atomic.Int32
+	results := make(chan alert_lifecycle.Result, attempts)
+	var wg sync.WaitGroup
+	for i := 0; i < attempts; i++ {
+		wg.Add(1)
+		actor := actors[i%2]
+		go func() {
+			defer wg.Done()
+			result, _ := service.Ack(ctx, alertID, actor)
+			if result.Won {
+				won.Add(1)
+			}
+			results <- result
+		}()
+	}
+	wg.Wait()
+	close(results)
+	if won.Load() != 1 {
+		t.Fatalf("ack winners=%d", won.Load())
+	}
+	detail, err := service.Get(ctx, alertID)
+	if err != nil || detail.Projection.Status != alert_lifecycle.StatusAcknowledged || len(detail.Timeline) != 1 {
+		t.Fatalf("ack projection=%#v err=%v", detail, err)
+	}
+	winner := actors[0]
+	loser := actors[1]
+	if detail.Projection.AcknowledgedBy == nil || *detail.Projection.AcknowledgedBy != winner.ID {
+		winner, loser = loser, winner
+	}
+	for result := range results {
+		if result.Detail.Projection.AcknowledgedBy != nil && *result.Detail.Projection.AcknowledgedBy != winner.ID {
+			t.Fatal("later ack did not report the true winner")
+		}
+	}
+	if _, err = service.Close(ctx, alertID, alert_lifecycle.CloseInput{Outcome: "site_normal"}, loser); err == nil {
+		t.Fatal("non-owner close succeeded")
+	}
+	if _, err = service.Close(ctx, alertID, alert_lifecycle.CloseInput{}, winner); err == nil {
+		t.Fatal("missing outcome succeeded")
+	}
+	closed, err := service.Close(ctx, alertID, alert_lifecycle.CloseInput{Outcome: "site_normal", Note: "现场正常"}, winner)
+	if err != nil || !closed.Won {
+		t.Fatalf("close failed: %#v %v", closed, err)
+	}
+	replay, err := service.Close(ctx, alertID, alert_lifecycle.CloseInput{Outcome: "site_normal", Note: "现场正常"}, winner)
+	if err != nil || !replay.Idempotent {
+		t.Fatalf("close replay=%#v %v", replay, err)
+	}
+	if _, err = service.Close(ctx, alertID, alert_lifecycle.CloseInput{Outcome: "false_positive"}, winner); err == nil {
+		t.Fatal("conflicting close replay succeeded")
+	}
+	if err = db.Model(&alert_lifecycle.Fact{}).Where("alert_id = ?", alertID).Update("actor_name", "tampered").Error; err == nil {
+		t.Fatal("lifecycle fact update succeeded")
+	}
+	var facts, rejects int64
+	db.Model(&alert_lifecycle.Fact{}).Where("alert_id = ?", alertID).Count(&facts)
+	db.Model(&alert_lifecycle.RejectionAudit{}).Where("alert_id = ?", alertID).Count(&rejects)
+	if facts != 2 || rejects < 20 {
+		t.Fatalf("facts=%d rejects=%d", facts, rejects)
+	}
+	sqlDB, _ := db.DB()
+	_ = sqlDB.Close()
+	reopened, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	after, err := alert_lifecycle.NewService(reopened).Get(ctx, alertID)
+	if err != nil || after.Projection.Status != alert_lifecycle.StatusClosed || len(after.Timeline) != 2 {
+		t.Fatalf("restart detail=%#v err=%v", after, err)
+	}
+
+	rollbackID := createAlert(t, reopened, "rollback")
+	if err = reopened.Exec(`CREATE FUNCTION bell_test_reject_lifecycle() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN RAISE EXCEPTION 'forced lifecycle failure'; END $$`).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = reopened.Exec(`CREATE TRIGGER bell_test_reject_lifecycle BEFORE INSERT ON bell_alert_lifecycle_facts FOR EACH ROW EXECUTE FUNCTION bell_test_reject_lifecycle()`).Error; err != nil {
+		t.Fatal(err)
+	}
+	if _, err = alert_lifecycle.NewService(reopened).Ack(ctx, rollbackID, winner); err == nil {
+		t.Fatal("forced lifecycle failure succeeded")
+	}
+	rollback, _ := alert_lifecycle.NewService(reopened).Get(ctx, rollbackID)
+	if rollback.Projection.Status != alert_lifecycle.StatusOpen || len(rollback.Timeline) != 0 {
+		t.Fatal("failed ack left partial projection")
+	}
+	if err = reopened.Exec(`DROP TRIGGER bell_test_reject_lifecycle ON bell_alert_lifecycle_facts; DROP FUNCTION bell_test_reject_lifecycle()`).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	adminCloseID := createAlert(t, reopened, "admin-close")
+	if _, err = alert_lifecycle.NewService(reopened).Ack(ctx, adminCloseID, winner); err != nil {
+		t.Fatal(err)
+	}
+	administrator := loser
+	administrator.Role = "admin"
+	if result, closeErr := alert_lifecycle.NewService(reopened).Close(ctx, adminCloseID, alert_lifecycle.CloseInput{Outcome: "danger_confirmed"}, administrator); closeErr != nil || !result.Won {
+		t.Fatalf("administrator close failed: %#v %v", result, closeErr)
+	}
+}
+
+func createActors(t *testing.T, db *gorm.DB) []alert_lifecycle.Actor {
+	t.Helper()
+	var roleID int
+	db.Table("sys_role").Select("role_id").Where("role_key='operator'").Scan(&roleID)
+	result := make([]alert_lifecycle.Actor, 2)
+	for i := range result {
+		user := adminmodels.SysUser{Username: "bell_133_operator_" + string(rune('a'+i)), Password: "test-password-133", NickName: "处置员" + string(rune('A'+i)), RoleId: roleID, DeptId: 1, PostId: 1, Status: "2"}
+		if err := db.Create(&user).Error; err != nil {
+			t.Fatal(err)
+		}
+		result[i] = alert_lifecycle.Actor{ID: user.UserId, Name: user.NickName, Role: "operator"}
+	}
+	return result
+}
+func createAlert(t *testing.T, db *gorm.DB, suffix string) string {
+	t.Helper()
+	ctx := context.Background()
+	eventType := "lifecycle_" + suffix
+	createdRule, err := rule.NewService(db).Create(ctx, rule.WriteInput{Code: "lifecycle-" + suffix, Name: "生命周期规则", EventType: &eventType, MinimumSeverity: "low"}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	created, err := event.NewService(db).Ingest(ctx, event.Command{ProducerID: "bell.lifecycle-test", SourceEventID: suffix, EventType: eventType, OccurredAt: time.Date(2026, 8, 29, 0, 0, 0, 0, time.UTC), Location: "测试地点" + suffix, Severity: "high", Attributes: map[string]any{}}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	items, _, err := alert.NewService(db).List(ctx, alert.PageQuery{PageIndex: 1, PageSize: 100})
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, item := range items {
+		if item.PrimaryRuleID == createdRule.ID {
+			return item.ID
+		}
+	}
+	t.Fatal("alert not created")
+	return created.Event.ID
+}

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

@@ -0,0 +1,28 @@
+[CmdletBinding()] param([string]$PostgresBin='D:\pgsql17\bin')
+Set-StrictMode -Version 3.0
+$ErrorActionPreference='Stop'; $started=$false; $server=$null
+$root=Join-Path ([IO.Path]::GetTempPath()) ('yovision-bell-133-'+[guid]::NewGuid().ToString('N'))
+$data=Join-Path $root 'postgres'; $log=Join-Path $root 'postgres.log'; $serverRoot=(Resolve-Path (Join-Path $PSScriptRoot '..\..')).Path; $serverExe=Join-Path $root 'bell.exe'
+function FreePort { $l=[Net.Sockets.TcpListener]::new([Net.IPAddress]::Loopback,0); try{$l.Start();return ([Net.IPEndPoint]$l.LocalEndpoint).Port}finally{$l.Stop()} }
+function WaitPort([int]$port){for($i=0;$i -lt 120;$i++){try{$c=[Net.Sockets.TcpClient]::new();$ok=$c.ConnectAsync('127.0.0.1',$port).Wait(250)-and$c.Connected;$c.Dispose();if($ok){return}}catch{};Start-Sleep -Milliseconds 250};throw 'PostgreSQL did not start'}
+function Login([string]$base,[string]$username,[string]$password){$body=@{username=$username;password=$password;code='0';uuid='0'}|ConvertTo-Json -Compress; $result=Invoke-RestMethod -Method Post -Uri "$base/api/v1/login" -ContentType 'application/json' -Body $body -NoProxy; if([int]$result.code-ne 200){throw "login failed: $username"}; return @{Authorization="Bearer $($result.token)"}}
+New-Item -ItemType Directory -Path $root|Out-Null; $port=FreePort
+try {
+  foreach($name in @('initdb.exe','pg_ctl.exe','createdb.exe','psql.exe')){if(-not(Test-Path (Join-Path $PostgresBin $name))){throw "Missing $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'}
+  $args="-D `"$data`" -l `"$log`" -o `"-p $port -h 127.0.0.1`" start"; Start-Process (Join-Path $PostgresBin 'pg_ctl.exe') -ArgumentList $args -WindowStyle Hidden|Out-Null; WaitPort $port; $started=$true
+  & (Join-Path $PostgresBin 'createdb.exe') -h 127.0.0.1 -p $port -U postgres bell_133; if($LASTEXITCODE-ne 0){throw 'createdb failed'}
+  $bellPort=FreePort; $base="http://127.0.0.1:$bellPort"; $env:GOTOOLCHAIN='go1.26.5'; $env:BELL_DATABASE_URL="host=127.0.0.1 port=$port user=postgres dbname=bell_133 sslmode=disable"; $env:BELL_ALERT_LIFECYCLE_TEST_DATABASE_URL=$env:BELL_DATABASE_URL; $env:BELL_JWT_SECRET=[guid]::NewGuid().ToString('N')+[guid]::NewGuid().ToString('N'); $env:BELL_BOOTSTRAP_USERNAME='bell_133_admin'; $env:BELL_BOOTSTRAP_PASSWORD=[guid]::NewGuid().ToString('N'); $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 $root 'migrate.log'); if($LASTEXITCODE-ne 0){throw "migration failed: $root"}; go test ./tests/bell_alert_lifecycle -count=1 -v; if($LASTEXITCODE-ne 0){throw 'lifecycle test failed'}; go build -o $serverExe . } finally { Pop-Location }
+  $server=Start-Process $serverExe -ArgumentList @('server','-c','config/settings.demo.yml') -WorkingDirectory $serverRoot -RedirectStandardOutput (Join-Path $root 'server.out') -RedirectStandardError (Join-Path $root 'server.err') -WindowStyle Hidden -PassThru; WaitPort $bellPort
+  $a=Login $base 'bell_133_operator_a' 'test-password-133'; $b=Login $base 'bell_133_operator_b' 'test-password-133'; $list=Invoke-RestMethod -Uri "$base/api/v1/bell/alerts?status=open" -Headers $a -NoProxy; $id=[string]$list.data.list[0].id; if([string]::IsNullOrWhiteSpace($id)){throw 'open alert missing'}
+  $ack=Invoke-RestMethod -Method Post -Uri "$base/api/v1/bell/alerts/$id/ack" -Headers $a -ContentType 'application/json' -Body '{}' -NoProxy; $late=Invoke-RestMethod -Method Post -Uri "$base/api/v1/bell/alerts/$id/ack" -Headers $b -ContentType 'application/json' -Body '{}' -NoProxy; if([int]$ack.code-ne 200-or[int]$late.code-ne 409){throw 'ack API semantics failed'}
+  $forbidden=Invoke-RestMethod -Method Post -Uri "$base/api/v1/bell/alerts/$id/close" -Headers $b -ContentType 'application/json' -Body '{"outcome":"site_normal"}' -NoProxy; $missing=Invoke-RestMethod -Method Post -Uri "$base/api/v1/bell/alerts/$id/close" -Headers $a -ContentType 'application/json' -Body '{}' -NoProxy; if([int]$forbidden.code-ne 403-or[int]$missing.code-ne 400){throw 'close rejection semantics failed'}
+  $body='{"outcome":"site_normal","note":"现场正常"}'; $closed=Invoke-RestMethod -Method Post -Uri "$base/api/v1/bell/alerts/$id/close" -Headers $a -ContentType 'application/json; charset=utf-8' -Body $body -NoProxy; $replay=Invoke-RestMethod -Method Post -Uri "$base/api/v1/bell/alerts/$id/close" -Headers $a -ContentType 'application/json; charset=utf-8' -Body $body -NoProxy; $timeline=Invoke-RestMethod -Uri "$base/api/v1/bell/alerts/$id/lifecycle" -Headers $a -NoProxy; if([int]$closed.code-ne 200-or-not$replay.data.idempotent-or$timeline.data.detail.timeline.Count-ne 2){throw 'close/timeline API semantics failed'}
+  $leaks=& (Join-Path $PostgresBin 'psql.exe') -h 127.0.0.1 -p $port -U postgres -d bell_133 -Atc "select count(*) from sys_opera_log where oper_url like '%/bell/alerts/%/close' and ((oper_param <> '' and oper_param not like '%redacted%') or json_result not like '%redacted%');"; if($LASTEXITCODE-ne 0-or[int]$leaks-ne 0){throw 'lifecycle note leaked into GoAdmin operation log'}
+  Write-Output 'BELL_133_HTTP ack=200 late_ack=409 forbidden_close=403 missing_outcome=400 close=200 replay=true timeline=2'
+} finally {
+  if($null-ne$server-and-not$server.HasExited){Stop-Process -Id $server.Id -Force; $server.WaitForExit(5000)|Out-Null}
+  if($started){& (Join-Path $PostgresBin 'pg_ctl.exe') -D $data -m fast stop *> (Join-Path $root 'stop.log')}
+  foreach($name in @('BELL_DATABASE_URL','BELL_ALERT_LIFECYCLE_TEST_DATABASE_URL','BELL_JWT_SECRET','BELL_BOOTSTRAP_USERNAME','BELL_BOOTSTRAP_PASSWORD','BELL_HOST','BELL_PORT')){Remove-Item "Env:$name" -ErrorAction SilentlyContinue}
+}

Bell/server/tests/bell_alert_lifecycle/validation_test.go

@@ -0,0 +1,7 @@
+package bell_alert_lifecycle_test
+
+import "testing"
+
+// Input and state validation are exercised through the PostgreSQL service test;
+// this sentinel keeps the package runnable without an integration database.
+func TestLifecyclePackageLoadsWithoutDatabase(t *testing.T) {}

Bell/server/tests/bell_event/normalize_test.go

@@ -0,0 +1,61 @@
+package bell_event_test
+
+import (
+	"errors"
+	"testing"
+	"time"
+
+	"go-admin/app/bell/event"
+)
+
+func validCommand() event.Command {
+	return event.Command{
+		ProducerID: " bell.synthetic ", SourceEventID: " test-001 ", EventType: " danger_area_entered ",
+		OccurredAt: time.Date(2026, 8, 29, 0, 0, 0, 0, time.FixedZone("CST", 8*60*60)),
+		Location:   " 东门 ", Severity: " HIGH ", Attributes: map[string]any{"z": 2, "a": "first"},
+	}
+}
+
+func TestNormalizeIsDeterministicAndTrimsBusinessFields(t *testing.T) {
+	first, err := event.Normalize(validCommand())
+	if err != nil {
+		t.Fatal(err)
+	}
+	secondCommand := validCommand()
+	secondCommand.Attributes = map[string]any{"a": "first", "z": 2}
+	second, err := event.Normalize(secondCommand)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if first.Digest != second.Digest || string(first.Payload) != string(second.Payload) {
+		t.Fatalf("normalized payload is not deterministic: %s != %s", first.Payload, second.Payload)
+	}
+	if first.Command.ProducerID != "bell.synthetic" || first.Command.Severity != "high" {
+		t.Fatalf("fields were not normalized: %#v", first.Command)
+	}
+	if first.Command.OccurredAt.Location() != time.UTC {
+		t.Fatalf("occurredAt was not converted to UTC: %v", first.Command.OccurredAt)
+	}
+}
+
+func TestNormalizeRejectsUnsafeOrInvalidInput(t *testing.T) {
+	tests := []struct {
+		name   string
+		mutate func(*event.Command)
+	}{
+		{name: "missing source id", mutate: func(c *event.Command) { c.SourceEventID = " " }},
+		{name: "unknown severity", mutate: func(c *event.Command) { c.Severity = "urgent" }},
+		{name: "newline in location", mutate: func(c *event.Command) { c.Location = "东门\nsecret" }},
+		{name: "unsafe evidence path", mutate: func(c *event.Command) { value := `C:\\secret.jpg`; c.EvidenceRef = &value }},
+		{name: "oversized attributes", mutate: func(c *event.Command) { c.Attributes = map[string]any{"blob": string(make([]byte, 49*1024))} }},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			command := validCommand()
+			test.mutate(&command)
+			if _, err := event.Normalize(command); !errors.Is(err, event.ErrInvalid) {
+				t.Fatalf("expected ErrInvalid, got %v", err)
+			}
+		})
+	}
+}

Bell/server/tests/bell_event/synthetic_test.go

@@ -0,0 +1,42 @@
+package bell_event_test
+
+import (
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	jwt "github.com/go-admin-team/go-admin-core/sdk/pkg/jwtauth"
+
+	"go-admin/app/bell/synthetic"
+)
+
+func TestSyntheticEnabledRequiresExplicitNonProductionOptIn(t *testing.T) {
+	getenv := func(name string) string {
+		if name == synthetic.EnabledEnv {
+			return "true"
+		}
+		return ""
+	}
+	if synthetic.Enabled("prod", getenv) || synthetic.Enabled("production", getenv) {
+		t.Fatal("synthetic route must stay disabled in production even when the flag is set")
+	}
+	if !synthetic.Enabled("dev", getenv) {
+		t.Fatal("explicit development opt-in should enable the synthetic route")
+	}
+	if synthetic.Enabled("dev", func(string) string { return "" }) {
+		t.Fatal("synthetic route must default to disabled")
+	}
+}
+
+func TestSyntheticAdministratorCheckUsesJWTClaims(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	admin, _ := gin.CreateTestContext(nil)
+	admin.Set(jwt.JwtPayloadKey, jwt.MapClaims{jwt.RoleKey: "admin"})
+	if !synthetic.IsAdministrator(admin) {
+		t.Fatal("admin role should be authorized")
+	}
+	operator, _ := gin.CreateTestContext(nil)
+	operator.Set(jwt.JwtPayloadKey, jwt.MapClaims{jwt.RoleKey: "operator"})
+	if synthetic.IsAdministrator(operator) {
+		t.Fatal("non-admin role must be rejected")
+	}
+}

Bell/server/tests/bell_minimal_menu/minimal_menu_test.go

@@ -0,0 +1,120 @@
+package bell_minimal_menu_test
+
+import (
+	"os"
+	"reflect"
+	"sort"
+	"testing"
+
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+
+	versionlocal "go-admin/cmd/migrate/migration/version-local"
+)
+
+var expectedVisibleMenus = []string{
+	"事件查询",
+	"用户管理",
+	"系统管理",
+	"菜单管理",
+	"角色管理",
+	"规则配置",
+	"预警中心",
+	"预警管理",
+}
+
+func TestBellMinimalMenuMigration(t *testing.T) {
+	databaseURL := os.Getenv("BELL_MINIMAL_MENU_TEST_DATABASE_URL")
+	if databaseURL == "" {
+		t.Skip("minimal menu database is not configured")
+	}
+	db, err := gorm.Open(postgres.Open(databaseURL), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	assertVisibleMenus(t, db)
+	assertUnusedMenusRetainedAndHidden(t, db)
+	assertOperatorHasNoDefaultMenus(t, db)
+
+	var rowCountBefore int64
+	if err = db.Table("sys_menu").Count(&rowCountBefore).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Exec(`UPDATE sys_menu SET visible = '0' WHERE title IN ('开发工具','定时任务','系统工具')`).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Exec(`UPDATE sys_menu SET visible = '1' WHERE title IN ('系统管理','预警中心')`).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Transaction(versionlocal.ApplyBellMinimalMenuVisibility); err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Transaction(versionlocal.ApplyBellMinimalMenuVisibility); err != nil {
+		t.Fatalf("reapplying minimal menu policy failed: %v", err)
+	}
+	var rowCountAfter int64
+	if err = db.Table("sys_menu").Count(&rowCountAfter).Error; err != nil {
+		t.Fatal(err)
+	}
+	if rowCountAfter != rowCountBefore {
+		t.Fatalf("menu records changed during visibility migration: before=%d after=%d", rowCountBefore, rowCountAfter)
+	}
+	assertVisibleMenus(t, db)
+	assertUnusedMenusRetainedAndHidden(t, db)
+}
+
+func assertVisibleMenus(t *testing.T, db *gorm.DB) {
+	t.Helper()
+	var titles []string
+	if err := db.Table("sys_menu").
+		Where("menu_type IN ? AND deleted_at IS NULL AND visible = ?", []string{"M", "C"}, "0").
+		Order("title").Pluck("title", &titles).Error; err != nil {
+		t.Fatal(err)
+	}
+	sort.Strings(titles)
+	expected := append([]string(nil), expectedVisibleMenus...)
+	sort.Strings(expected)
+	if !reflect.DeepEqual(titles, expected) {
+		t.Fatalf("visible menu mismatch\nwant: %v\n got: %v", expected, titles)
+	}
+}
+
+func assertUnusedMenusRetainedAndHidden(t *testing.T, db *gorm.DB) {
+	t.Helper()
+	for _, title := range []string{"开发工具", "定时任务", "系统工具"} {
+		var values []string
+		if err := db.Table("sys_menu").Where("title = ? AND deleted_at IS NULL", title).Pluck("visible", &values).Error; err != nil {
+			t.Fatal(err)
+		}
+		if len(values) == 0 {
+			t.Fatalf("unused upstream menu %q was deleted", title)
+		}
+		for _, visible := range values {
+			if visible != "1" {
+				t.Fatalf("unused upstream menu %q remains visible=%q", title, visible)
+			}
+		}
+	}
+}
+
+func assertOperatorHasNoDefaultMenus(t *testing.T, db *gorm.DB) {
+	t.Helper()
+	var titles []string
+	err := db.Raw(`
+		SELECT DISTINCT m.title
+		FROM sys_role r
+		JOIN sys_role_menu rm ON rm.role_id = r.role_id
+		JOIN sys_menu m ON m.menu_id = rm.menu_id
+		WHERE r.role_key = 'operator'
+		  AND m.menu_type IN ('M', 'C')
+		  AND m.deleted_at IS NULL
+		  AND (m.path LIKE '/admin%' OR m.permission LIKE 'admin:%')
+	`).Scan(&titles).Error
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(titles) != 0 {
+		t.Fatalf("operator retains default administration menus: %v", titles)
+	}
+}

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

@@ -0,0 +1,79 @@
+[CmdletBinding()]
+param([string]$PostgresBin = 'D:\pgsql17\bin')
+
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$started = $false
+$root = Join-Path ([IO.Path]::GetTempPath()) ('yovision-bell-140-' + [guid]::NewGuid().ToString('N'))
+$data = Join-Path $root 'postgres'
+$log = Join-Path $root 'postgres.log'
+$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 {
+        $listener.Stop()
+    }
+}
+
+function Wait-ForPort([int]$Port) {
+    for ($attempt = 0; $attempt -lt 120; $attempt++) {
+        try {
+            $client = [Net.Sockets.TcpClient]::new()
+            $connected = $client.ConnectAsync('127.0.0.1', $Port).Wait(250) -and $client.Connected
+            $client.Dispose()
+            if ($connected) { return }
+        } catch {
+        }
+        Start-Sleep -Milliseconds 250
+    }
+    throw 'PostgreSQL did not start'
+}
+
+New-Item -ItemType Directory -Path $root | Out-Null
+$port = Get-FreePort
+try {
+    foreach ($name in @('initdb.exe', 'pg_ctl.exe', 'createdb.exe')) {
+        if (-not (Test-Path -LiteralPath (Join-Path $PostgresBin $name))) { throw "Missing $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 $port -h 127.0.0.1`" start"
+    Start-Process (Join-Path $PostgresBin 'pg_ctl.exe') -ArgumentList $arguments -WindowStyle Hidden | Out-Null
+    Wait-ForPort $port
+    $started = $true
+    & (Join-Path $PostgresBin 'createdb.exe') -h 127.0.0.1 -p $port -U postgres bell_140
+    if ($LASTEXITCODE -ne 0) { throw 'createdb failed' }
+
+    $env:GOTOOLCHAIN = 'go1.26.5'
+    $env:BELL_DATABASE_URL = "host=127.0.0.1 port=$port user=postgres dbname=bell_140 sslmode=disable"
+    $env:BELL_MINIMAL_MENU_TEST_DATABASE_URL = $env:BELL_DATABASE_URL
+    $env:BELL_JWT_SECRET = [guid]::NewGuid().ToString('N') + [guid]::NewGuid().ToString('N')
+    $env:BELL_BOOTSTRAP_USERNAME = 'bell_140_admin'
+    $env:BELL_BOOTSTRAP_PASSWORD = [guid]::NewGuid().ToString('N')
+    $env:BELL_HOST = '127.0.0.1'
+    $env:BELL_PORT = (Get-FreePort).ToString()
+
+    Push-Location $serverRoot
+    try {
+        go run . migrate -c config/settings.yml *> (Join-Path $root 'migrate.log')
+        if ($LASTEXITCODE -ne 0) { throw "migration failed; evidence: $root" }
+        go test ./tests/bell_minimal_menu -count=1 -v
+        if ($LASTEXITCODE -ne 0) { throw 'minimal menu test failed' }
+        go run . migrate -c config/settings.yml *> (Join-Path $root 'migrate-repeat.log')
+        if ($LASTEXITCODE -ne 0) { throw "repeat migration failed; evidence: $root" }
+    } finally {
+        Pop-Location
+    }
+    Write-Output 'BELL_140_MINIMAL_MENU fresh=true upgrade=true repeat=true admin_whitelist=true operator_default_menu=false'
+} finally {
+    if ($started) {
+        & (Join-Path $PostgresBin 'pg_ctl.exe') -D $data -m fast stop *> (Join-Path $root 'stop.log')
+    }
+    foreach ($name in @('BELL_DATABASE_URL', 'BELL_MINIMAL_MENU_TEST_DATABASE_URL', 'BELL_JWT_SECRET', 'BELL_BOOTSTRAP_USERNAME', 'BELL_BOOTSTRAP_PASSWORD', 'BELL_HOST', 'BELL_PORT')) {
+        Remove-Item "Env:$name" -ErrorAction SilentlyContinue
+    }
+}

Bell/server/tests/bell_production_login/production_login_test.go

@@ -0,0 +1,195 @@
+package bell_production_login_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"io/fs"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-admin-team/go-admin-core/config/source/file"
+	"github.com/go-admin-team/go-admin-core/sdk"
+	sdkapi "github.com/go-admin-team/go-admin-core/sdk/api"
+	"github.com/go-admin-team/go-admin-core/sdk/config"
+	"github.com/go-admin-team/go-admin-core/sdk/pkg/captcha"
+	"github.com/mojocn/base64Captcha"
+	"gorm.io/gorm"
+	gormlogger "gorm.io/gorm/logger"
+
+	adminrouter "go-admin/app/admin/router"
+	bellrouter "go-admin/app/bell/router"
+	"go-admin/common/bellconfig"
+	"go-admin/common/database"
+	"go-admin/common/middleware"
+	"go-admin/common/storage"
+	ext "go-admin/config"
+)
+
+type apiResponse struct {
+	Code  int             `json:"code"`
+	Data  json.RawMessage `json:"data"`
+	ID    string          `json:"id"`
+	Msg   string          `json:"msg"`
+	Token string          `json:"token"`
+}
+
+func TestProductionCaptchaLoginAndRouteBoundary(t *testing.T) {
+	if os.Getenv("BELL_PRODUCTION_LOGIN_TEST_DATABASE_URL") == "" {
+		t.Skip("production login database is not configured")
+	}
+	if err := os.MkdirAll("temp/logs", 0o700); err != nil {
+		t.Fatal(err)
+	}
+	gin.SetMode(gin.TestMode)
+	config.ExtendConfig = &ext.ExtConfig
+	config.Setup(file.NewSource(file.WithPath("../../config/settings.yml")))
+	if err := bellconfig.ApplyRequiredEnvironment(); err != nil {
+		t.Fatal(err)
+	}
+	if config.ApplicationConfig.Mode != "prod" {
+		t.Fatalf("expected production mode, got %q", config.ApplicationConfig.Mode)
+	}
+	database.Setup()
+	storage.Setup()
+
+	engine := gin.New()
+	sdk.Runtime.SetEngine(engine)
+	engine.Use(sdkapi.SetRequestLogger)
+	engine.Use(middleware.WithContextDb)
+	authMiddleware, err := middleware.AuthInit()
+	if err != nil {
+		t.Fatal(err)
+	}
+	adminrouter.InitSysRouter(engine, authMiddleware)
+	adminrouter.InitExamplesRouter(engine, authMiddleware)
+	bellrouter.InitRouter()
+
+	captchaResponse := requestJSON(t, engine, http.MethodGet, "/api/v1/captcha", nil, "")
+	if captchaResponse.Code != 200 || captchaResponse.ID == "" || !bytes.Contains(captchaResponse.Data, []byte("data:image/")) {
+		t.Fatalf("unexpected captcha response: code=%d id=%q data=%s", captchaResponse.Code, captchaResponse.ID, captchaResponse.Data)
+	}
+
+	username := os.Getenv("BELL_BOOTSTRAP_USERNAME")
+	password := os.Getenv("BELL_BOOTSTRAP_PASSWORD")
+	answer := "813907"
+	validID := "bell-138-valid"
+	if err := base64Captcha.DefaultMemStore.Set(validID, answer); err != nil {
+		t.Fatal(err)
+	}
+	if !captcha.Verify(validID, answer, false) {
+		t.Fatal("known captcha was not stored")
+	}
+	login := requestJSON(t, engine, http.MethodPost, "/api/v1/login", loginBody(username, password, validID, answer), "")
+	if login.Code != 200 || login.Token == "" {
+		t.Fatalf("valid captcha login failed: code=%d msg=%q", login.Code, login.Msg)
+	}
+	replay := requestJSON(t, engine, http.MethodPost, "/api/v1/login", loginBody(username, password, validID, answer), "")
+	if replay.Code == 200 {
+		t.Fatal("used captcha was accepted again")
+	}
+
+	wrongID := "bell-138-wrong"
+	if err := base64Captcha.DefaultMemStore.Set(wrongID, answer); err != nil {
+		t.Fatal(err)
+	}
+	wrong := requestJSON(t, engine, http.MethodPost, "/api/v1/login", loginBody(username, password, wrongID, "000000"), "")
+	if wrong.Code == 200 {
+		t.Fatal("incorrect captcha was accepted")
+	}
+	consumed := requestJSON(t, engine, http.MethodPost, "/api/v1/login", loginBody(username, password, wrongID, answer), "")
+	if consumed.Code == 200 {
+		t.Fatal("captcha used by a failed attempt was not consumed")
+	}
+
+	unauthenticated := requestJSON(t, engine, http.MethodGet, "/api/v1/bell/alerts", nil, "")
+	if unauthenticated.Code == 200 {
+		t.Fatal("unauthenticated Bell business API was accepted")
+	}
+	disabled := httptest.NewRecorder()
+	engine.ServeHTTP(disabled, httptest.NewRequest(http.MethodGet, "/api/v1/config", nil))
+	if disabled.Code != http.StatusNotFound {
+		t.Fatalf("disabled default route returned HTTP %d", disabled.Code)
+	}
+
+	assertSecretsAbsentFromAudit(t, password, answer, login.Token)
+	assertSecretsAbsentFromLogs(t, password, answer, login.Token)
+	if captcha.Verify(captchaResponse.ID, "deliberately-wrong", true) {
+		t.Fatal("generated captcha accepted a deliberately incorrect answer")
+	}
+}
+
+func loginBody(username, password, id, answer string) map[string]string {
+	return map[string]string{"username": username, "password": password, "uuid": id, "code": answer}
+}
+
+func requestJSON(t *testing.T, engine http.Handler, method, path string, body any, token string) apiResponse {
+	t.Helper()
+	var payload []byte
+	var err error
+	if body != nil {
+		payload, err = json.Marshal(body)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+	request := httptest.NewRequest(method, path, bytes.NewReader(payload))
+	request.Header.Set("Content-Type", "application/json")
+	if token != "" {
+		request.Header.Set("Authorization", "Bearer "+token)
+	}
+	recorder := httptest.NewRecorder()
+	engine.ServeHTTP(recorder, request)
+	var response apiResponse
+	if err = json.Unmarshal(recorder.Body.Bytes(), &response); err != nil {
+		t.Fatalf("decode %s response (HTTP %d): %v: %s", path, recorder.Code, err, recorder.Body.String())
+	}
+	return response
+}
+
+func assertSecretsAbsentFromAudit(t *testing.T, secrets ...string) {
+	t.Helper()
+	db := sdk.Runtime.GetDbByKey("").Session(&gorm.Session{Logger: gormlogger.Default.LogMode(gormlogger.Silent)})
+	for _, table := range []string{"sys_login_log", "sys_opera_log"} {
+		for _, secret := range secrets {
+			var count int64
+			query := "SELECT count(*) FROM " + table + " WHERE row_to_json(" + table + ")::text LIKE ?"
+			if err := db.Raw(query, "%"+secret+"%").Scan(&count).Error; err != nil {
+				t.Fatal(err)
+			}
+			if count != 0 {
+				t.Fatalf("secret leaked into %s", table)
+			}
+		}
+	}
+}
+
+func assertSecretsAbsentFromLogs(t *testing.T, secrets ...string) {
+	t.Helper()
+	patterns := append([]string{"DriverDigitFunc answer:"}, secrets...)
+	err := filepath.WalkDir("temp", func(path string, entry fs.DirEntry, walkErr error) error {
+		if walkErr != nil {
+			return walkErr
+		}
+		if entry.IsDir() {
+			return nil
+		}
+		content, readErr := os.ReadFile(path)
+		if readErr != nil {
+			return readErr
+		}
+		for _, pattern := range patterns {
+			if pattern != "" && strings.Contains(string(content), pattern) {
+				t.Fatalf("sensitive value found in server log %s", path)
+			}
+		}
+		return nil
+	})
+	if err != nil && !os.IsNotExist(err) {
+		t.Fatal(err)
+	}
+}

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

@@ -0,0 +1,83 @@
+[CmdletBinding()]
+param([string]$PostgresBin = 'D:\pgsql17\bin')
+
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$started = $false
+$root = Join-Path ([IO.Path]::GetTempPath()) ('yovision-bell-138-' + [guid]::NewGuid().ToString('N'))
+$data = Join-Path $root 'postgres'
+$log = Join-Path $root 'postgres.log'
+$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 {
+        $listener.Stop()
+    }
+}
+
+function Wait-ForPort([int]$Port) {
+    for ($attempt = 0; $attempt -lt 120; $attempt++) {
+        try {
+            $client = [Net.Sockets.TcpClient]::new()
+            $connected = $client.ConnectAsync('127.0.0.1', $Port).Wait(250) -and $client.Connected
+            $client.Dispose()
+            if ($connected) {
+                return
+            }
+        } catch {
+        }
+        Start-Sleep -Milliseconds 250
+    }
+    throw 'PostgreSQL did not start'
+}
+
+New-Item -ItemType Directory -Path $root | Out-Null
+$port = Get-FreePort
+try {
+    foreach ($name in @('initdb.exe', 'pg_ctl.exe', 'createdb.exe')) {
+        if (-not (Test-Path -LiteralPath (Join-Path $PostgresBin $name))) {
+            throw "Missing $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 $port -h 127.0.0.1`" start"
+    Start-Process (Join-Path $PostgresBin 'pg_ctl.exe') -ArgumentList $arguments -WindowStyle Hidden | Out-Null
+    Wait-ForPort $port
+    $started = $true
+    & (Join-Path $PostgresBin 'createdb.exe') -h 127.0.0.1 -p $port -U postgres bell_138
+    if ($LASTEXITCODE -ne 0) { throw 'createdb failed' }
+
+    $env:GOTOOLCHAIN = 'go1.26.5'
+    $env:BELL_DATABASE_URL = "host=127.0.0.1 port=$port user=postgres dbname=bell_138 sslmode=disable"
+    $env:BELL_PRODUCTION_LOGIN_TEST_DATABASE_URL = $env:BELL_DATABASE_URL
+    $env:BELL_JWT_SECRET = [guid]::NewGuid().ToString('N') + [guid]::NewGuid().ToString('N')
+    $env:BELL_BOOTSTRAP_USERNAME = 'bell_138_admin'
+    $env:BELL_BOOTSTRAP_PASSWORD = [guid]::NewGuid().ToString('N')
+    $env:BELL_HOST = '127.0.0.1'
+    $env:BELL_PORT = (Get-FreePort).ToString()
+
+    Remove-Item -LiteralPath (Join-Path $PSScriptRoot 'temp') -Recurse -Force -ErrorAction SilentlyContinue
+    Push-Location $serverRoot
+    try {
+        go run . migrate -c config/settings.yml *> (Join-Path $root 'migrate.log')
+        if ($LASTEXITCODE -ne 0) { throw "migration failed; evidence: $root" }
+        go test ./tests/bell_production_login -count=1 -v
+        if ($LASTEXITCODE -ne 0) { throw 'production login test failed' }
+    } finally {
+        Pop-Location
+    }
+    Write-Output 'BELL_138_PRODUCTION_LOGIN captcha=200 valid_login=200 wrong_rejected=true replay_rejected=true secrets_absent=true'
+} finally {
+    if ($started) {
+        & (Join-Path $PostgresBin 'pg_ctl.exe') -D $data -m fast stop *> (Join-Path $root 'stop.log')
+    }
+    foreach ($name in @('BELL_DATABASE_URL', 'BELL_PRODUCTION_LOGIN_TEST_DATABASE_URL', 'BELL_JWT_SECRET', 'BELL_BOOTSTRAP_USERNAME', 'BELL_BOOTSTRAP_PASSWORD', 'BELL_HOST', 'BELL_PORT')) {
+        Remove-Item "Env:$name" -ErrorAction SilentlyContinue
+    }
+    Remove-Item -LiteralPath (Join-Path $PSScriptRoot 'temp') -Recurse -Force -ErrorAction SilentlyContinue
+}

Bell/server/tests/bell_rule_alert/integration_test.go

@@ -0,0 +1,214 @@
+package bell_rule_alert_test
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+
+	adminmodels "go-admin/app/admin/models"
+	"go-admin/app/bell/alert"
+	"go-admin/app/bell/evaluation"
+	"go-admin/app/bell/event"
+	"go-admin/app/bell/receipt"
+	"go-admin/app/bell/rule"
+)
+
+func TestPostgresRuleEvaluationAndAlertProjection(t *testing.T) {
+	dsn := os.Getenv("BELL_RULE_ALERT_TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("set BELL_RULE_ALERT_TEST_DATABASE_URL to run the isolated PostgreSQL test")
+	}
+	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	ctx := context.Background()
+	rules := rule.NewService(db)
+	events := event.NewService(db)
+	evaluations := evaluation.NewService(db)
+	alerts := alert.NewService(db)
+	assertOperatorAccess(t, db)
+	createOperatorUser(t, db)
+
+	eventType := "danger_area_entered"
+	location := "东门"
+	first, err := rules.Create(ctx, rule.WriteInput{Code: "area-high", Name: "高风险区域", EventType: &eventType, MinimumSeverity: "high", LocationContains: &location}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	second, err := rules.Create(ctx, rule.WriteInput{Code: "all-high", Name: "全局高风险", MinimumSeverity: "high"}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	otherEventType := "fire_detected"
+	_, err = rules.Create(ctx, rule.WriteInput{Code: "critical-fire", Name: "仅严重火情", EventType: &otherEventType, MinimumSeverity: "critical"}, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	created := ingest(t, events, "event-001", "东门 A 区", "high")
+	result, err := evaluations.ForEvent(ctx, created.Event.ID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(result.Evaluations) != 3 || len(result.Alerts) != 2 {
+		t.Fatalf("expected 3 evaluations and 2 alerts, got %d and %d", len(result.Evaluations), len(result.Alerts))
+	}
+	matched, unmatched := 0, 0
+	for _, item := range result.Evaluations {
+		if item.Matched {
+			matched++
+		} else if item.Explanation != "" {
+			unmatched++
+		}
+	}
+	if matched != 2 || unmatched != 1 {
+		t.Fatalf("unexpected match explanations: matched=%d unmatched=%d", matched, unmatched)
+	}
+
+	replay := ingest(t, events, "event-001", "东门 A 区", "high")
+	if !replay.Duplicate || replay.Event.ID != created.Event.ID {
+		t.Fatalf("idempotent replay created another fact: %#v", replay)
+	}
+	assertCount(t, db, "bell_rule_evaluations", 3)
+	assertCount(t, db, "bell_alerts", 2)
+
+	secondEvent := ingest(t, events, "event-002", "东门 A 区", "critical")
+	assertCount(t, db, "bell_alerts", 2)
+	items, total, err := alerts.List(ctx, alert.PageQuery{PageIndex: 1, PageSize: 20, Status: "open"})
+	if err != nil || total != 2 || len(items) != 2 {
+		t.Fatalf("unexpected alert list: total=%d len=%d err=%v", total, len(items), err)
+	}
+	for _, item := range items {
+		if item.EventCount != 2 || item.Status != "open" || item.Severity != "critical" {
+			t.Fatalf("open alert did not aggregate and escalate: %#v", item)
+		}
+		detail, detailErr := alerts.Get(ctx, item.ID)
+		if detailErr != nil || len(detail.Events) != 2 || len(detail.Matches) != 2 {
+			t.Fatalf("event-alert navigation is incomplete: events=%d matches=%d err=%v", len(detail.Events), len(detail.Matches), detailErr)
+		}
+	}
+
+	updated, err := rules.Update(ctx, first.ID, rule.WriteInput{Name: "高风险区域（更新）", EventType: &eventType, MinimumSeverity: "medium", LocationContains: &location}, 1)
+	if err != nil || updated.Version != 2 {
+		t.Fatalf("rule version was not incremented: version=%d err=%v", updated.Version, err)
+	}
+	if _, err = rules.SetEnabled(ctx, second.ID, false, 1); err != nil {
+		t.Fatal(err)
+	}
+	thirdEvent := ingest(t, events, "event-003", "东门 B 区", "medium")
+	thirdResults, err := evaluations.ForEvent(ctx, thirdEvent.Event.ID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(thirdResults.Evaluations) != 2 || len(thirdResults.Alerts) != 1 {
+		t.Fatalf("disabled rule was evaluated: evaluations=%d alerts=%d", len(thirdResults.Evaluations), len(thirdResults.Alerts))
+	}
+	var snapshot struct {
+		Version int `json:"version"`
+	}
+	for _, item := range thirdResults.Evaluations {
+		if item.RuleID == first.ID {
+			if err = json.Unmarshal(item.RuleSnapshot, &snapshot); err != nil || item.RuleVersion != 2 || snapshot.Version != 2 {
+				t.Fatalf("versioned rule snapshot missing: item=%#v snapshot=%#v err=%v", item, snapshot, err)
+			}
+		}
+	}
+
+	if err = db.Model(&evaluation.Evaluation{}).Where("event_id = ? AND rule_id = ?", created.Event.ID, first.ID).Update("explanation", "tampered").Error; err == nil {
+		t.Fatal("immutable evaluation update unexpectedly succeeded")
+	}
+
+	if err = db.Exec(`CREATE FUNCTION bell_test_reject_alert() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN RAISE EXCEPTION 'forced alert failure'; END $$`).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err = db.Exec(`CREATE TRIGGER bell_test_reject_alert BEFORE INSERT ON bell_alerts FOR EACH ROW EXECUTE FUNCTION bell_test_reject_alert()`).Error; err != nil {
+		t.Fatal(err)
+	}
+	failedID := "event-rollback"
+	_, ingestErr := events.Ingest(ctx, eventCommand(failedID, "东门 C 区", "high"), 1)
+	if ingestErr == nil {
+		t.Fatal("forced alert failure did not roll back Event ingest")
+	}
+	var eventCount, receiptCount int64
+	db.Model(&event.Event{}).Where("source_event_id = ?", failedID).Count(&eventCount)
+	db.Model(&receipt.Receipt{}).Where("source_event_id = ?", failedID).Count(&receiptCount)
+	if eventCount != 0 || receiptCount != 0 {
+		t.Fatalf("transaction failure left partial facts: events=%d receipts=%d", eventCount, receiptCount)
+	}
+	if err = db.Exec(`DROP TRIGGER bell_test_reject_alert ON bell_alerts; DROP FUNCTION bell_test_reject_alert()`).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	if secondEvent.Event.ID == thirdEvent.Event.ID {
+		t.Fatal("independent Events unexpectedly share an id")
+	}
+}
+
+func ingest(t *testing.T, service event.Service, sourceID, location, severity string) event.Result {
+	t.Helper()
+	result, err := service.Ingest(context.Background(), eventCommand(sourceID, location, severity), 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return result
+}
+
+func eventCommand(sourceID, location, severity string) event.Command {
+	return event.Command{ProducerID: "bell.rule-test", SourceEventID: sourceID, EventType: "danger_area_entered", OccurredAt: time.Date(2026, 8, 29, 0, 0, 0, 0, time.UTC), Location: location, Severity: severity, Attributes: map[string]any{"test": true}}
+}
+
+func assertCount(t *testing.T, db *gorm.DB, table string, want int64) {
+	t.Helper()
+	var got int64
+	if err := db.Table(table).Count(&got).Error; err != nil {
+		t.Fatal(err)
+	}
+	if got != want {
+		t.Fatal(fmt.Sprintf("%s count: got %d want %d", table, got, want))
+	}
+}
+
+func assertOperatorAccess(t *testing.T, db *gorm.DB) {
+	t.Helper()
+	var menuCount, readPolicyCount, ruleWritePolicyCount, lifecycleWritePolicyCount 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{"/bell", "alerts", "events", "rules"}).Count(&menuCount).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Table("casbin_rule").Where("v0 = ? AND v2 = ?", "operator", "GET").Count(&readPolicyCount).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Table("casbin_rule").Where("v0 = ? AND v2 <> ? AND v1 LIKE ?", "operator", "GET", "/api/v1/bell/rules%").Count(&ruleWritePolicyCount).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Table("casbin_rule").Where("v0 = ? AND v2 = ? AND v1 IN ?", "operator", "POST", []string{"/api/v1/bell/alerts/:id/ack", "/api/v1/bell/alerts/:id/close"}).Count(&lifecycleWritePolicyCount).Error; err != nil {
+		t.Fatal(err)
+	}
+	if menuCount != 4 || readPolicyCount < 6 || ruleWritePolicyCount != 0 || lifecycleWritePolicyCount > 2 {
+		t.Fatalf("operator access escaped Bell scope: menus=%d reads=%d rule_writes=%d lifecycle_writes=%d", menuCount, readPolicyCount, ruleWritePolicyCount, lifecycleWritePolicyCount)
+	}
+}
+
+func createOperatorUser(t *testing.T, db *gorm.DB) {
+	t.Helper()
+	password := os.Getenv("BELL_RULE_ALERT_OPERATOR_PASSWORD")
+	if password == "" {
+		t.Skip("set BELL_RULE_ALERT_OPERATOR_PASSWORD for the HTTP RBAC continuation")
+	}
+	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("load 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_rule_alert/run-postgres.ps1

@@ -0,0 +1,143 @@
+[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-132-' + [guid]::NewGuid().ToString('N'))
+$pgData = Join-Path $testRoot 'postgres'
+$pgLog = Join-Path $testRoot 'postgres.log'
+$pgCtlOut = Join-Path $testRoot 'pg-ctl.out.log'
+$pgCtlErr = Join-Path $testRoot 'pg-ctl.err.log'
+$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-FreeTcpPort {
+    $listener = [Net.Sockets.TcpListener]::new([Net.IPAddress]::Loopback, 0)
+    try {
+        $listener.Start()
+        return ([Net.IPEndPoint]$listener.LocalEndpoint).Port
+    } finally {
+        $listener.Stop()
+    }
+}
+
+function Wait-Tcp([int]$Port, [bool]$Open, [int]$Attempts = 120) {
+    for ($attempt = 0; $attempt -lt $Attempts; $attempt++) {
+        $client = [Net.Sockets.TcpClient]::new()
+        try {
+            $connected = $client.ConnectAsync('127.0.0.1', $Port).Wait(250) -and $client.Connected
+        } catch {
+            $connected = $false
+        } finally {
+            $client.Dispose()
+        }
+        if ($connected -eq $Open) { return }
+        Start-Sleep -Milliseconds 250
+    }
+    throw "TCP port $Port did not reach open=$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' -and $health.service -eq 'bell') { return }
+        } catch {}
+        Start-Sleep -Milliseconds 300
+    }
+    throw 'Bell health endpoint did not become ready'
+}
+
+New-Item -ItemType Directory -Path $testRoot | Out-Null
+$pgPort = Get-FreeTcpPort
+$bellPort = Get-FreeTcpPort
+$baseUrl = "http://127.0.0.1:$bellPort"
+$database = 'bell_132'
+
+try {
+    foreach ($required in @('initdb.exe', 'pg_ctl.exe', 'createdb.exe')) {
+        $path = Join-Path $PostgresBin $required
+        if (-not (Test-Path -LiteralPath $path -PathType Leaf)) { throw "Missing PostgreSQL tool: $path" }
+    }
+
+    & (Join-Path $PostgresBin 'initdb.exe') -D $pgData -U postgres -A trust --encoding=UTF8 --no-locale | Out-Null
+    if ($LASTEXITCODE -ne 0) { throw 'isolated PostgreSQL initdb failed' }
+    $pgArguments = "-D `"$pgData`" -l `"$pgLog`" -o `"-p $pgPort -h 127.0.0.1`" start"
+    Start-Process -FilePath (Join-Path $PostgresBin 'pg_ctl.exe') -ArgumentList $pgArguments -RedirectStandardOutput $pgCtlOut -RedirectStandardError $pgCtlErr -WindowStyle Hidden | Out-Null
+    Wait-Tcp -Port $pgPort -Open $true
+    $pgStarted = $true
+    & (Join-Path $PostgresBin 'createdb.exe') -h 127.0.0.1 -p $pgPort -U postgres $database
+    if ($LASTEXITCODE -ne 0) { throw 'isolated Bell database creation failed' }
+
+    $env:GOTOOLCHAIN = 'go1.26.5'
+    $env:BELL_DATABASE_URL = "host=127.0.0.1 port=$pgPort user=postgres dbname=$database sslmode=disable"
+    $env:BELL_RULE_ALERT_TEST_DATABASE_URL = $env:BELL_DATABASE_URL
+    $env:BELL_JWT_SECRET = [guid]::NewGuid().ToString('N') + [guid]::NewGuid().ToString('N')
+    $env:BELL_BOOTSTRAP_USERNAME = 'bell_132_admin'
+    $env:BELL_BOOTSTRAP_PASSWORD = [guid]::NewGuid().ToString('N')
+    $env:BELL_RULE_ALERT_OPERATOR_PASSWORD = [guid]::NewGuid().ToString('N')
+    $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 "Bell migration failed; see $(Join-Path $testRoot 'migrate.log')" }
+        go test ./tests/bell_rule_alert -count=1 -v
+        if ($LASTEXITCODE -ne 0) { throw 'Bell rule-alert integration test 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
+
+    $unauthorized = Invoke-RestMethod -Uri "$baseUrl/api/v1/bell/rules" -TimeoutSec 5 -NoProxy
+    if ([int]$unauthorized.code -ne 401) { throw "unauthenticated rule list returned code $($unauthorized.code)" }
+
+    $adminLoginBody = @{ username = $env:BELL_BOOTSTRAP_USERNAME; password = $env:BELL_BOOTSTRAP_PASSWORD; code = '0'; uuid = '0' } | ConvertTo-Json -Compress
+    $adminLogin = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/login" -ContentType 'application/json' -Body $adminLoginBody -TimeoutSec 5 -NoProxy
+    if ([int]$adminLogin.code -ne 200) { throw 'Bell administrator login failed' }
+    $adminHeaders = @{ Authorization = "Bearer $($adminLogin.token)" }
+    $adminRule = @{ code = 'http-admin'; name = '管理员 HTTP 规则'; eventType = $null; minimumSeverity = 'high'; locationContains = $null } | ConvertTo-Json -Compress
+    $adminWrite = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/rules" -Headers $adminHeaders -ContentType 'application/json; charset=utf-8' -Body $adminRule -TimeoutSec 5 -NoProxy
+    if ([int]$adminWrite.code -ne 200 -or [int]$adminWrite.data.version -ne 1) { throw 'administrator rule create failed' }
+
+    $operatorLoginBody = @{ username = 'bell_132_operator'; password = $env:BELL_RULE_ALERT_OPERATOR_PASSWORD; code = '0'; uuid = '0' } | ConvertTo-Json -Compress
+    $operatorLogin = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/login" -ContentType 'application/json' -Body $operatorLoginBody -TimeoutSec 5 -NoProxy
+    if ([int]$operatorLogin.code -ne 200) { throw 'Bell operator login failed' }
+    $operatorHeaders = @{ Authorization = "Bearer $($operatorLogin.token)" }
+    foreach ($path in @('/api/v1/bell/rules','/api/v1/bell/events','/api/v1/bell/alerts')) {
+        $read = Invoke-RestMethod -Uri "$baseUrl$path" -Headers $operatorHeaders -TimeoutSec 5 -NoProxy
+        if ([int]$read.code -ne 200) { throw "operator read $path returned code $($read.code)" }
+    }
+    $operatorWrite = Invoke-RestMethod -Method Post -Uri "$baseUrl/api/v1/bell/rules" -Headers $operatorHeaders -ContentType 'application/json' -Body $adminRule -TimeoutSec 5 -NoProxy
+    if ([int]$operatorWrite.code -ne 403) { throw "operator rule write returned code $($operatorWrite.code)" }
+    $menu = Invoke-RestMethod -Uri "$baseUrl/api/v1/menurole" -Headers $operatorHeaders -TimeoutSec 5 -NoProxy
+    $menuJson = $menu.data | ConvertTo-Json -Depth 20 -Compress
+    foreach ($title in @('预警中心','预警管理','事件查询','规则配置')) {
+        if (-not $menuJson.Contains($title)) { throw "operator menu is missing $title" }
+    }
+    if ($menuJson.Contains('系统管理') -or $menuJson.Contains('开发工具')) { throw 'operator menu exposed unrelated GoAdmin modules' }
+    Write-Output 'BELL_132_HTTP unauthenticated=401 admin_write=200 operator_reads=200 operator_write=403 minimal_menu=true'
+} finally {
+    if ($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 $pgData -m fast stop *> (Join-Path $testRoot 'pg-stop.log')
+    }
+    foreach ($name in @('BELL_DATABASE_URL','BELL_RULE_ALERT_TEST_DATABASE_URL','BELL_RULE_ALERT_OPERATOR_PASSWORD','BELL_JWT_SECRET','BELL_BOOTSTRAP_USERNAME','BELL_BOOTSTRAP_PASSWORD','BELL_HOST','BELL_PORT')) {
+        Remove-Item "Env:$name" -ErrorAction SilentlyContinue
+    }
+    Write-Verbose "Bell #132 temporary artifacts: $testRoot"
+}

Bell/server/tests/bell_rule_alert/validation_test.go

@@ -0,0 +1,55 @@
+package bell_rule_alert_test
+
+import (
+	"errors"
+	"testing"
+
+	"go-admin/app/bell/rule"
+)
+
+func TestRuleNormalizeTrimsAndNormalizesFields(t *testing.T) {
+	eventType := " danger_area_entered "
+	location := " 东门 "
+	got, err := rule.Normalize(rule.WriteInput{
+		Code: " AREA_HIGH ", Name: " 高风险区域 ", EventType: &eventType,
+		MinimumSeverity: " HIGH ", LocationContains: &location,
+	}, true)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.Code != "area_high" || got.Name != "高风险区域" || got.MinimumSeverity != "high" {
+		t.Fatalf("unexpected normalized rule: %#v", got)
+	}
+	if got.EventType == nil || *got.EventType != "danger_area_entered" || got.LocationContains == nil || *got.LocationContains != "东门" {
+		t.Fatalf("optional fields were not normalized: %#v", got)
+	}
+}
+
+func TestRuleNormalizeRejectsInvalidInput(t *testing.T) {
+	tests := []struct {
+		name  string
+		input rule.WriteInput
+	}{
+		{name: "invalid code", input: rule.WriteInput{Code: "Bad Code", Name: "规则", MinimumSeverity: "low"}},
+		{name: "missing name", input: rule.WriteInput{Code: "valid-code", Name: " ", MinimumSeverity: "low"}},
+		{name: "unknown severity", input: rule.WriteInput{Code: "valid-code", Name: "规则", MinimumSeverity: "urgent"}},
+		{name: "control character", input: rule.WriteInput{Code: "valid-code", Name: "规则\n泄露", MinimumSeverity: "low"}},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if _, err := rule.Normalize(test.input, true); !errors.Is(err, rule.ErrInvalid) {
+				t.Fatalf("expected ErrInvalid, got %v", err)
+			}
+		})
+	}
+}
+
+func TestRuleUpdateKeepsImmutableCodeOutsideInput(t *testing.T) {
+	got, err := rule.Normalize(rule.WriteInput{Code: "ignored invalid code", Name: "更新后规则", MinimumSeverity: "medium"}, false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.Name != "更新后规则" || got.MinimumSeverity != "medium" {
+		t.Fatalf("unexpected update normalization: %#v", got)
+	}
+}

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/tests/compatibility/assert-go-admin-shell.ps1

@@ -0,0 +1,8 @@
+param([Parameter(Mandatory = $true)][string]$PackageRoot)
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$web = Join-Path ([IO.Path]::GetFullPath($PackageRoot)) 'web'
+& (Join-Path $PSScriptRoot '..\..\scripts\build\assert-web-assets.ps1') -WebRoot $web
+$index = Get-Content -LiteralPath (Join-Path $web 'index.html') -Raw -Encoding UTF8
+if ($index -notmatch 'id=["'']app["'']') { throw 'Bell package does not contain the GoAdmin Vue application mount.' }
+Write-Host 'Bell GoAdmin shell compatibility check passed.'

Bell/tests/e2e/run-isolated-e2e.ps1

@@ -0,0 +1,204 @@
+param(
+    [string]$PostgresBin = 'D:\pgsql17\bin',
+    [string]$PreparedPackageRoot = '',
+    [switch]$KeepTemporary,
+    [switch]$BrowserHold
+)
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = 'Stop'
+$repositoryRoot = [IO.Path]::GetFullPath((Join-Path $PSScriptRoot '..\..\..'))
+$bellRoot = Join-Path $repositoryRoot 'Bell'
+$temporary = Join-Path ([IO.Path]::GetTempPath()) ('bell-e2e-' + [guid]::NewGuid().ToString('N'))
+$pgData = Join-Path $temporary 'postgres'
+$pgLog = Join-Path $temporary 'postgres.log'
+$runtimeOut = Join-Path $temporary 'bell-launcher.out.log'
+$runtimeErr = Join-Path $temporary 'bell-launcher.err.log'
+$launcher = $null
+$pgStarted = $false
+$savedEnvironment = @{}
+
+function Get-FreeTcpPort {
+    $listener = [Net.Sockets.TcpListener]::new([Net.IPAddress]::Loopback,0)
+    try { $listener.Start(); return ([Net.IPEndPoint]$listener.LocalEndpoint).Port } finally { $listener.Stop() }
+}
+function Get-UniqueFreePorts([int]$Count) {
+    $ports = [Collections.Generic.List[int]]::new()
+    while ($ports.Count -lt $Count) { $port=Get-FreeTcpPort; if (-not $ports.Contains($port)) { $ports.Add($port) } }
+    return $ports.ToArray()
+}
+function New-RandomText([int]$Bytes=32) {
+    $buffer=New-Object byte[] $Bytes; $generator=[Security.Cryptography.RandomNumberGenerator]::Create()
+    try { $generator.GetBytes($buffer) } finally { $generator.Dispose() }
+    return [Convert]::ToBase64String($buffer).TrimEnd('=').Replace('+','A').Replace('/','B')
+}
+function Set-TestEnvironment([string]$Name,[string]$Value) {
+    if (-not $script:savedEnvironment.ContainsKey($Name)) { $script:savedEnvironment[$Name]=[Environment]::GetEnvironmentVariable($Name,'Process') }
+    [Environment]::SetEnvironmentVariable($Name,$Value,'Process')
+}
+function Wait-Tcp([int]$Port,[bool]$Open,[int]$Attempts=120) {
+    for($i=0;$i -lt $Attempts;$i++) {
+        $client=[Net.Sockets.TcpClient]::new()
+        try { $connected=$client.ConnectAsync('127.0.0.1',$Port).Wait(250)-and$client.Connected } catch { $connected=$false } finally { $client.Dispose() }
+        if($connected -eq $Open){return}; Start-Sleep -Milliseconds 250
+    }
+    throw "TCP port $Port did not reach open=$Open"
+}
+function Wait-Health([string]$BaseUrl) {
+    for($i=0;$i -lt 120;$i++){try{$health=Invoke-RestMethod -Uri "$BaseUrl/healthz" -TimeoutSec 2 -NoProxy;if($health.status-eq'ok'-and$health.service-eq'bell'){return}}catch{};Start-Sleep -Milliseconds 300}
+    throw "Bell health endpoint did not become ready: $BaseUrl"
+}
+function Invoke-BellJson {
+    param([string]$Method,[string]$Path,$Body=$null,[string]$Token='',[int]$ExpectedCode=200)
+    $headers=@{};if($Token){$headers.Authorization="Bearer $Token"}
+    $arguments=@{Method=$Method;Uri="$script:baseUrl$Path";Headers=$headers;TimeoutSec=20;NoProxy=$true}
+    if($null-ne$Body){$arguments.ContentType='application/json; charset=utf-8';$arguments.Body=$Body|ConvertTo-Json -Depth 12 -Compress}
+    try{$response=Invoke-RestMethod @arguments}catch{throw "Bell request failed for $Method $Path`: $($_.Exception.Message)"}
+    if([int]$response.code-ne$ExpectedCode){throw "Unexpected Bell code for $Method $Path`: expected $ExpectedCode, got $($response.code), message=$($response.msg)"}
+    return $response
+}
+function Login([string]$Username,[string]$Password){$response=Invoke-BellJson POST '/api/v1/login' @{username=$Username;password=$Password;code='0';uuid='0'};if([string]::IsNullOrWhiteSpace($response.token)){throw "Login did not return a token for $Username"};return [string]$response.token}
+function Get-VisibleMenuTitles($Menus,[bool]$AncestorsVisible=$true) {
+    foreach($menu in @($Menus)) {
+        if($null-eq$menu){continue}
+        $visible=$AncestorsVisible-and([string]$menu.visible-eq'0')
+        if($visible-and-not[string]::IsNullOrWhiteSpace([string]$menu.title)){[string]$menu.title}
+        if($menu.PSObject.Properties.Name-contains'children'){
+            Get-VisibleMenuTitles -Menus $menu.children -AncestorsVisible $visible
+        }
+    }
+}
+function Start-Package([string]$Root){
+    $script:launcher=Start-Process -FilePath 'cmd.exe' -ArgumentList @('/d','/c',"`"$(Join-Path $Root 'start-bell.bat')`"") -WorkingDirectory $Root -RedirectStandardOutput $runtimeOut -RedirectStandardError $runtimeErr -WindowStyle Hidden -PassThru
+    Wait-Health $script:baseUrl
+}
+function Stop-Package([string]$Root){
+    & (Join-Path $Root 'stop-bell.bat') | Out-Host
+    if($LASTEXITCODE-ne 0){throw 'Bell package stop failed'}
+    Wait-Tcp -Port $script:webPort -Open $false -Attempts 40
+    Wait-Tcp -Port $script:backendPort -Open $false -Attempts 40
+    if($script:launcher-and-not$script:launcher.HasExited){$script:launcher.WaitForExit(5000)|Out-Null}
+    $script:launcher=$null
+}
+function Stop-ProcessTree($Process){if($Process-and-not$Process.HasExited){& taskkill.exe /PID $Process.Id /T /F 2>$null|Out-Null}}
+
+New-Item -ItemType Directory -Path $temporary | Out-Null
+try {
+    foreach($name in @('initdb.exe','pg_ctl.exe','createdb.exe','psql.exe')){$path=Join-Path $PostgresBin $name;if(-not(Test-Path -LiteralPath $path -PathType Leaf)){throw "Required PostgreSQL tool not found: $path"}}
+    if([string]::IsNullOrWhiteSpace($PreparedPackageRoot)){
+        & (Join-Path $bellRoot 'scripts\build\build-windows.ps1')
+        if($LASTEXITCODE-ne 0){throw 'Bell Windows package build failed'}
+        $preparedPackageRoot=Join-Path $bellRoot 'dist\bell-windows-amd64'
+    }else{$preparedPackageRoot=[IO.Path]::GetFullPath($PreparedPackageRoot)}
+    & (Join-Path $bellRoot 'scripts\build\test-package.ps1') -PackageRoot $preparedPackageRoot
+    & (Join-Path $bellRoot 'tests\compatibility\assert-go-admin-shell.ps1') -PackageRoot $preparedPackageRoot
+    $packageRoot=Join-Path $temporary 'package'
+    Copy-Item -LiteralPath $preparedPackageRoot -Destination $packageRoot -Recurse
+    # Production captcha behavior is covered by #138. The isolated business
+    # E2E uses a disposable package copy in dev mode so it never needs to
+    # expose or OCR a captcha answer.
+    $settingsPath=Join-Path $packageRoot 'config\settings.yml'
+    $settings=Get-Content -LiteralPath $settingsPath -Raw -Encoding UTF8
+    $testSettings=[regex]::Replace($settings,'(?m)^(\s*mode:\s*)prod\s*$','$1dev')
+    if($testSettings-eq$settings){throw 'Packaged settings did not contain the expected production mode'}
+    [IO.File]::WriteAllText($settingsPath,$testSettings,(New-Object Text.UTF8Encoding($false)))
+
+    $pgPort,$script:backendPort,$script:webPort=Get-UniqueFreePorts 3
+    if($pgPort-eq 5432){throw 'E2E must not use the default PostgreSQL port'}
+    $script:baseUrl="http://127.0.0.1:$script:webPort"
+    & (Join-Path $PostgresBin 'initdb.exe') -D $pgData -U bell_e2e -A trust --encoding=UTF8 --no-locale|Out-Null
+    if($LASTEXITCODE-ne 0){throw 'isolated PostgreSQL initdb failed'}
+    $pgArguments="-D `"$pgData`" -l `"$pgLog`" -o `"-p $pgPort -h 127.0.0.1`" start"
+    Start-Process -FilePath (Join-Path $PostgresBin 'pg_ctl.exe') -ArgumentList $pgArguments -RedirectStandardOutput (Join-Path $temporary 'pg-ctl.out.log') -RedirectStandardError (Join-Path $temporary 'pg-ctl.err.log') -WindowStyle Hidden|Out-Null
+    Wait-Tcp -Port $pgPort -Open $true;$pgStarted=$true
+    & (Join-Path $PostgresBin 'createdb.exe') -h 127.0.0.1 -p $pgPort -U bell_e2e bell_e2e
+    if($LASTEXITCODE-ne 0){throw 'isolated Bell database creation failed'}
+
+    $adminName='bell_e2e_admin_'+(New-RandomText 5).ToLowerInvariant();$adminPassword=New-RandomText 20
+    $operatorPassword=New-RandomText 20;$jwt=New-RandomText 48
+    $environment=@{
+        BELL_HOST='127.0.0.1';BELL_PORT="$script:backendPort";BELL_WEB_HOST='127.0.0.1';BELL_WEB_PORT="$script:webPort";
+        BELL_DATABASE_URL="host=127.0.0.1 port=$pgPort user=bell_e2e dbname=bell_e2e sslmode=disable";
+        BELL_JWT_SECRET=$jwt;BELL_BOOTSTRAP_USERNAME=$adminName;BELL_BOOTSTRAP_PASSWORD=$adminPassword;
+        BELL_AUTO_MIGRATE='true';BELL_SYNTHETIC_EVENTS_ENABLED='true'
+    }
+    foreach($item in $environment.GetEnumerator()){Set-TestEnvironment $item.Key $item.Value}
+    Start-Package $packageRoot
+    $anonymous=Invoke-BellJson GET '/api/v1/bell/alerts' $null '' 401
+    $adminToken=Login $adminName $adminPassword
+    $psql=Join-Path $PostgresBin 'psql.exe'
+    $operatorRole=[int]((&$psql -X -h 127.0.0.1 -p $pgPort -U bell_e2e -d bell_e2e -tAc "select role_id from sys_role where role_key='operator';").Trim())
+    if($operatorRole-lt 1){throw 'operator role was not migrated'}
+    $operators=@(
+        @{username='bell_e2e_operator_a';nickName='处置员A'},
+        @{username='bell_e2e_operator_b';nickName='处置员B'}
+    )
+    foreach($operator in $operators){[void](Invoke-BellJson POST '/api/v1/sys-user' @{username=$operator.username;password=$operatorPassword;nickName=$operator.nickName;phone='13800000000';roleId=$operatorRole;sex='1';email="$($operator.username)@invalid.local";deptId=1;postId=1;status='2'} $adminToken)}
+    $tokenA=Login $operators[0].username $operatorPassword;$tokenB=Login $operators[1].username $operatorPassword
+    $adminMenu=Invoke-BellJson GET '/api/v1/menurole' $null $adminToken
+    $operatorMenu=Invoke-BellJson GET '/api/v1/menurole' $null $tokenA
+    $adminVisible=@(Get-VisibleMenuTitles $adminMenu.data)
+    $operatorVisible=@(Get-VisibleMenuTitles $operatorMenu.data)
+    foreach($label in @('预警管理','事件查询','规则配置')){if($adminVisible-notcontains$label){throw "administrator menu is missing $label; visible=$($adminVisible-join',')"}}
+    foreach($label in @('预警管理','事件查询')){if($operatorVisible-notcontains$label){throw "operator menu is missing $label; visible=$($operatorVisible-join',')"}}
+    foreach($label in @('开发工具','定时任务','系统监控')){if($adminVisible-contains$label-or$operatorVisible-contains$label){throw "unrelated menu is visible: $label"}}
+
+    $eventType='bell_e2e_danger';$ruleBody=@{code='bell-e2e-danger';name='E2E危险区域规则';eventType=$eventType;minimumSeverity='medium';locationContains='东门'}
+    [void](Invoke-BellJson POST '/api/v1/bell/rules' $ruleBody $tokenA 403)
+    [void](Invoke-BellJson POST '/api/v1/bell/rules' $ruleBody $adminToken)
+    $eventBody=Get-Content -LiteralPath (Join-Path $bellRoot 'tests\fixtures\synthetic-danger-event.json') -Raw -Encoding UTF8|ConvertFrom-Json
+    $eventBody.eventType=$eventType
+    $created=Invoke-BellJson POST '/api/v1/bell/synthetic-events' $eventBody $adminToken
+    $replay=Invoke-BellJson POST '/api/v1/bell/synthetic-events' $eventBody $adminToken
+    if($created.data.duplicate-ne$false-or$replay.data.duplicate-ne$true-or$created.data.event.id-ne$replay.data.event.id){throw 'synthetic Event idempotency failed'}
+    $eventId=[string]$created.data.event.id
+    $alerts=Invoke-BellJson GET '/api/v1/bell/alerts?status=open&pageIndex=1&pageSize=20' $null $tokenA
+    $alert=@($alerts.data.list)[0]
+    if(-not$alert){throw 'rule evaluation did not create an open Alert'}
+    $alertId=[string]$alert.id
+    $alertDetail=(Invoke-BellJson GET "/api/v1/bell/alerts/$alertId" $null $tokenA).data
+    if(@($alertDetail.events.id)-notcontains$eventId){throw 'created Alert is not linked to the synthetic Event'}
+
+    $requests=for($i=0;$i-lt 20;$i++){[pscustomobject]@{Token=$(if($i%2-eq0){$tokenA}else{$tokenB})}}
+    $acks=$requests|ForEach-Object -Parallel {
+        $headers=@{Authorization="Bearer $($_.Token)"}
+        $response=Invoke-RestMethod -Method Post -Uri "$using:baseUrl/api/v1/bell/alerts/$using:alertId/ack" -Headers $headers -ContentType 'application/json' -Body '{}' -TimeoutSec 20 -NoProxy
+        [pscustomobject]@{Token=$_.Token;Response=$response}
+    } -ThrottleLimit 20
+    $winners=@($acks|Where-Object{$_.Response.data.won-eq$true})
+    if($winners.Count-ne 1){throw "concurrent ack winners=$($winners.Count)"}
+    $lifecycle=(Invoke-BellJson GET "/api/v1/bell/alerts/$alertId/lifecycle" $null $tokenA).data.detail
+    if($lifecycle.timeline.Count-ne 1-or$lifecycle.projection.status-ne'acknowledged'){throw 'ack lifecycle projection is inconsistent'}
+    $winnerToken=[string]$winners[0].Token
+    $loserToken=$(if($winnerToken-eq$tokenA){$tokenB}else{$tokenA})
+    [void](Invoke-BellJson POST "/api/v1/bell/alerts/$alertId/close" @{outcome='site_normal'} $loserToken 403)
+    [void](Invoke-BellJson POST "/api/v1/bell/alerts/$alertId/close" @{} $winnerToken 400)
+    $closed=Invoke-BellJson POST "/api/v1/bell/alerts/$alertId/close" @{outcome='site_normal';note='现场检查正常'} $winnerToken
+    $closeReplay=Invoke-BellJson POST "/api/v1/bell/alerts/$alertId/close" @{outcome='site_normal';note='现场检查正常'} $winnerToken
+    if($closed.data.won-ne$true-or$closeReplay.data.idempotent-ne$true){throw 'close or idempotent replay failed'}
+    $final=(Invoke-BellJson GET "/api/v1/bell/alerts/$alertId/lifecycle" $null $winnerToken).data.detail
+    if($final.timeline.Count-ne 2-or$final.projection.status-ne'closed'){throw 'closed timeline is incomplete'}
+    $facts=(&$psql -X -h 127.0.0.1 -p $pgPort -U bell_e2e -d bell_e2e -tAc "select (select count(*) from bell_events),(select count(*) from bell_event_receipts),(select count(*) from bell_alert_lifecycle_facts where alert_id='$alertId');").Trim()
+    if($facts-ne'1|1|2'){throw "unexpected persisted fact counts: $facts"}
+
+    Stop-Package $packageRoot
+    Start-Package $packageRoot
+    $after=(Invoke-BellJson GET "/api/v1/bell/alerts/$alertId/lifecycle" $null $winnerToken).data.detail
+    if($after.timeline.Count-ne 2-or$after.projection.closeOutcome-ne'site_normal'){throw 'cold restart lost lifecycle state'}
+    $rootPage=Invoke-WebRequest -Uri "$script:baseUrl/" -TimeoutSec 10 -NoProxy
+    if($rootPage.StatusCode-ne 200-or$rootPage.Content-notmatch'id=["'']app["'']'){throw 'packaged GoAdmin web shell is not available'}
+    if($BrowserHold){
+        $browserSession=Join-Path $temporary 'browser-session.json';$browserDone=Join-Path $temporary 'browser-done'
+        @{baseUrl=$script:baseUrl;username=$adminName;password=$adminPassword;alertId=$alertId}|ConvertTo-Json|Set-Content -LiteralPath $browserSession -Encoding UTF8
+        Write-Host "Bell browser session ready: $browserSession"
+        for($i=0;$i-lt 1200-and-not(Test-Path -LiteralPath $browserDone);$i++){Start-Sleep -Milliseconds 500}
+        if(-not(Test-Path -LiteralPath $browserDone)){throw 'Browser verification did not signal completion within 10 minutes'}
+    }
+    Stop-Package $packageRoot
+    foreach($log in @($runtimeOut,$runtimeErr,(Join-Path $packageRoot 'runtime\logs\bell.out.log'),(Join-Path $packageRoot 'runtime\logs\bell.err.log'))){if(Test-Path $log){$text=[string](Get-Content -LiteralPath $log -Raw -ErrorAction SilentlyContinue);foreach($secret in @($adminPassword,$operatorPassword,$jwt,$adminToken,$tokenA,$tokenB)){if($text.Contains($secret)){throw "runtime log exposed an E2E credential: $log"}}}}
+    Write-Host "Bell isolated E2E passed: health/login/RBAC, minimal menu, Event/Receipt idempotency, Rule/Alert, 20 concurrent ack, close authorization/idempotency, timeline, cold restart, package start/stop. base_url=$script:baseUrl"
+} finally {
+    try { if($launcher){Stop-Package $packageRoot} } catch { Stop-ProcessTree $launcher }
+    if($pgStarted){Start-Process -FilePath (Join-Path $PostgresBin 'pg_ctl.exe') -ArgumentList "-D `"$pgData`" -m fast stop" -RedirectStandardOutput (Join-Path $temporary 'pg-stop.out.log') -RedirectStandardError (Join-Path $temporary 'pg-stop.err.log') -WindowStyle Hidden|Out-Null;try{Wait-Tcp -Port $pgPort -Open $false -Attempts 40}catch{}}
+    foreach($item in $savedEnvironment.GetEnumerator()){[Environment]::SetEnvironmentVariable($item.Key,$item.Value,'Process')}
+    if(-not$KeepTemporary-and(Test-Path -LiteralPath $temporary)){$resolved=[IO.Path]::GetFullPath($temporary);if(-not$resolved.StartsWith([IO.Path]::GetTempPath(),[StringComparison]::OrdinalIgnoreCase)){throw "Unsafe temporary cleanup path: $resolved"};Remove-Item -LiteralPath $resolved -Recurse -Force}elseif($KeepTemporary){Write-Host "Kept Bell E2E directory: $temporary"}
+}

Bell/tests/fixtures/synthetic-danger-event.json

@@ -0,0 +1,12 @@
+{
+  "sourceEventId": "bell-e2e-danger-001",
+  "eventType": "danger_area_entered",
+  "occurredAt": "2026-08-29T00:00:00Z",
+  "location": "东门危险区域",
+  "severity": "high",
+  "evidenceRef": "e2e/evidence/bell-e2e-danger-001",
+  "attributes": {
+    "target": "anonymous",
+    "fixture": true
+  }
+}

Bell/ui/src/api/bell/alert-lifecycle.js

@@ -0,0 +1,5 @@
+import request from '@/utils/request'
+
+export function getAlertLifecycle(id) { return request({ url: `/api/v1/bell/alerts/${id}/lifecycle`, method: 'get' }) }
+export function acknowledgeAlert(id) { return request({ url: `/api/v1/bell/alerts/${id}/ack`, method: 'post' }) }
+export function closeAlert(id, data) { return request({ url: `/api/v1/bell/alerts/${id}/close`, method: 'post', data }) }

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

@@ -0,0 +1,9 @@
+import request from '@/utils/request'
+
+export function listAlerts(query) {
+  return request({ url: '/api/v1/bell/alerts', method: 'get', params: query })
+}
+
+export function getAlert(id) {
+  return request({ url: `/api/v1/bell/alerts/${id}`, method: 'get' })
+}

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

@@ -0,0 +1,13 @@
+import request from '@/utils/request'
+
+export function listEvents(query) {
+  return request({ url: '/api/v1/bell/events', method: 'get', params: query })
+}
+
+export function getEvent(id) {
+  return request({ url: `/api/v1/bell/events/${id}`, method: 'get' })
+}
+
+export function getEventRuleResults(id) {
+  return request({ url: `/api/v1/bell/events/${id}/rule-results`, method: 'get' })
+}

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

@@ -0,0 +1,17 @@
+import request from '@/utils/request'
+
+export function listRules(query) {
+  return request({ url: '/api/v1/bell/rules', method: 'get', params: query })
+}
+
+export function createRule(data) {
+  return request({ url: '/api/v1/bell/rules', method: 'post', data })
+}
+
+export function updateRule(id, data) {
+  return request({ url: `/api/v1/bell/rules/${id}`, method: 'put', data })
+}
+
+export function setRuleEnabled(id, enabled) {
+  return request({ url: `/api/v1/bell/rules/${id}/enabled`, method: 'put', data: { enabled }})
+}

Bell/ui/src/layout/components/Sidebar/Logo.vue

@@ -15,7 +15,7 @@
 
 <script>
 
-import variables from '@/styles/variables.scss'
+import variables from '@/styles/variables.scss?module'
 import { mapGetters } from 'vuex'
 
 export default {

Bell/ui/src/layout/components/Sidebar/index.vue

@@ -29,7 +29,7 @@
 import { mapGetters } from 'vuex'
 import Logo from './Logo'
 import SidebarItem from './SidebarItem'
-import variables from '@/styles/variables.scss'
+import variables from '@/styles/variables.scss?module'
 
 export default {
   components: { SidebarItem, Logo },

Bell/ui/src/layout/index.vue

@@ -20,7 +20,7 @@ import RightPanel from '@/components/RightPanel'
 import { AppMain, Navbar, Settings, Sidebar, TagsView } from './components'
 import ResizeMixin from './mixin/ResizeHandler'
 import { mapState } from 'vuex'
-import variables from '@/styles/variables.scss'
+import variables from '@/styles/variables.scss?module'
 
 export default {
   name: 'MainLayout',

Bell/ui/src/store/modules/settings.js

@@ -1,4 +1,4 @@
-import variables from '@/styles/element-variables.scss'
+import variables from '@/styles/element-variables.scss?module'
 import defaultSettings from '@/settings'
 
 const { showSettings, topNav, tagsView, fixedHeader, sidebarLogo, themeStyle } = defaultSettings

Bell/ui/src/views/bell/alerts/components/LifecycleActions.vue

@@ -0,0 +1,28 @@
+<template>
+  <div class="lifecycle-actions">
+    <el-alert v-if="error" :title="error" type="warning" show-icon :closable="false" />
+    <el-button v-if="lifecycle.canAck" v-permisaction="['bell:alert:ack']" type="primary" :loading="loading" @click="ack">我已看到并开始处理</el-button>
+    <el-button v-if="lifecycle.canClose" v-permisaction="['bell:alert:close']" type="primary" :loading="loading" @click="dialog=true">记录现场结果并完成</el-button>
+    <el-dialog v-model="dialog" title="记录现场结果" width="min(520px, calc(100vw - 32px))" append-to-body :close-on-click-modal="false" @closed="reset">
+      <el-alert title="完成后预警进入已完成状态，原始事件不会被修改。" type="info" :closable="false" class="form-alert" />
+      <el-form ref="formRef" :model="form" :rules="rules" label-position="top">
+        <el-form-item label="现场结果" prop="outcome"><el-radio-group v-model="form.outcome" class="outcome-group"><el-radio value="danger_confirmed">确认有危险</el-radio><el-radio value="false_positive">误报</el-radio><el-radio value="site_normal">现场正常</el-radio><el-radio value="unable_to_confirm">无法确认</el-radio></el-radio-group></el-form-item>
+        <el-form-item label="补充说明（可选）"><el-input v-model="form.note" type="textarea" :rows="3" maxlength="500" show-word-limit /></el-form-item>
+      </el-form>
+      <template #footer><el-button @click="dialog=false">取消</el-button><el-button type="primary" :loading="loading" @click="finish">确认结果并完成</el-button></template>
+    </el-dialog>
+  </div>
+</template>
+<script>
+import { acknowledgeAlert, closeAlert } from '@/api/bell/alert-lifecycle'
+export default {
+  name: 'BellLifecycleActions', props: { alertId: { type: String, required: true }, lifecycle: { type: Object, required: true }}, emits: ['changed'],
+  data() { return { loading: false, error: '', dialog: false, form: { outcome: '', note: '' }, rules: { outcome: [{ required: true, message: '请选择现场结果', trigger: 'change' }] }} },
+  methods: {
+    async ack() { this.loading = true; this.error = ''; try { const r = await acknowledgeAlert(this.alertId); this.msgSuccess(r.data.idempotent ? '您已在处理此预警' : '已记录由您开始处理'); this.$emit('changed') } catch (e) { this.error = e.message || '开始处理失败'; this.$emit('changed') } finally { this.loading = false } },
+    async finish() { try { await this.$refs.formRef.validate(); this.loading = true; this.error = ''; const r = await closeAlert(this.alertId, this.form); this.msgSuccess(r.data.idempotent ? '该结果已记录' : '预警已完成'); this.dialog = false; this.$emit('changed') } catch (e) { if (e && e.message) this.error = e.message } finally { this.loading = false } },
+    reset() { this.form = { outcome: '', note: '' }; this.$refs.formRef && this.$refs.formRef.clearValidate() }
+  }
+}
+</script>
+<style scoped>.lifecycle-actions{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0}.lifecycle-actions .el-alert{flex-basis:100%}.form-alert{margin-bottom:16px}.outcome-group{display:grid;gap:10px}</style>

Bell/ui/src/views/bell/alerts/components/LifecycleTimeline.vue

@@ -0,0 +1,2 @@
+<template><el-timeline><el-timeline-item v-for="item in items" :key="item.id" :timestamp="parseTime(item.occurredAt)" :type="item.transition==='closed'?'success':'primary'"><strong>{{ item.transition === 'closed' ? '处理完成' : '开始处理' }}</strong> · {{ item.actorName }}<div v-if="item.outcome">现场结果：{{ outcomeName(item.outcome) }}<span v-if="item.note">；{{ item.note }}</span></div></el-timeline-item><el-empty v-if="!items.length" description="尚无处理记录" /></el-timeline></template>
+<script>export default { name: 'BellLifecycleTimeline', props: { items: { type: Array, default: () => [] }}, methods: { outcomeName(v) { return { danger_confirmed: '确认有危险', false_positive: '误报', site_normal: '现场正常', unable_to_confirm: '无法确认' }[v] || v } }}</script>

Bell/ui/src/views/bell/alerts/detail.vue

@@ -0,0 +1,3 @@
+<template><div><el-descriptions :column="1" border><el-descriptions-item label="发生事项">{{ detail.alert.summary }}</el-descriptions-item><el-descriptions-item label="地点">{{ detail.alert.location }}</el-descriptions-item><el-descriptions-item label="紧急程度">{{ severityName(detail.alert.severity) }}</el-descriptions-item><el-descriptions-item label="状态">{{ statusName(lifecycle.projection.status || detail.alert.status) }}</el-descriptions-item><el-descriptions-item label="处理人">{{ lifecycle.projection.acknowledgedByName || '尚未开始处理' }}</el-descriptions-item><el-descriptions-item v-if="lifecycle.projection.closeOutcome" label="现场结果">{{ outcomeName(lifecycle.projection.closeOutcome) }}</el-descriptions-item><el-descriptions-item v-if="lifecycle.projection.closeNote" label="处理说明">{{ lifecycle.projection.closeNote }}</el-descriptions-item><el-descriptions-item label="命中规则">{{ detail.alert.ruleName }}</el-descriptions-item><el-descriptions-item label="预警编号">{{ detail.alert.id }}</el-descriptions-item></el-descriptions><LifecycleActions :alert-id="detail.alert.id" :lifecycle="lifecycle" @changed="$emit('changed')" /><h3>关联事件</h3><el-table :data="detail.events" border row-key="id"><el-table-column prop="occurredAt" label="发生时间" min-width="180"><template #default="scope">{{ parseTime(scope.row.occurredAt) }}</template></el-table-column><el-table-column prop="eventType" label="事件类型" min-width="150" /><el-table-column label="操作" width="80"><template #default="scope"><el-button link type="primary" @click="$emit('go-event',scope.row.id)">查看</el-button></template></el-table-column></el-table><h3>处理时间线</h3><LifecycleTimeline :items="lifecycle.timeline" /><h3>命中说明</h3><el-timeline><el-timeline-item v-for="match in detail.matches" :key="`${match.eventId}-${match.ruleId}`" :timestamp="parseTime(match.matchedAt)" type="primary">规则 v{{ match.ruleVersion }}：{{ match.explanation }}</el-timeline-item></el-timeline></div></template>
+<script>import LifecycleActions from './components/LifecycleActions.vue'; import LifecycleTimeline from './components/LifecycleTimeline.vue'; export default { name: 'BellAlertDetail', components: { LifecycleActions, LifecycleTimeline }, props: { detail: { type: Object, required: true }, lifecycle: { type: Object, required: true }}, emits: ['changed', 'go-event'], methods: { statusName(v) { return { open: '待处理', acknowledged: '处理中', closed: '已完成' }[v] || v }, severityName(v) { return { low: '低', medium: '中', high: '高', critical: '紧急' }[v] || v }, outcomeName(v) { return { danger_confirmed: '确认有危险', false_positive: '误报', site_normal: '现场正常', unable_to_confirm: '无法确认' }[v] || v } }}</script>
+<style scoped>h3{font-size:16px;margin:22px 0 10px}</style>

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

@@ -0,0 +1,76 @@
+<template>
+  <BasicLayout>
+    <template #wrapper>
+      <el-card class="box-card">
+        <template #header><div class="page-heading"><h2>预警管理</h2><p>先开始处理，再记录现场结果完成预警。</p></div></template>
+        <el-form ref="queryForm" :model="query" :inline="true">
+          <el-form-item label="状态" prop="status"><el-select v-model="query.status" clearable placeholder="全部状态" style="width:130px"><el-option label="待处理" value="open" /><el-option label="处理中" value="acknowledged" /><el-option label="已完成" value="closed" /></el-select></el-form-item>
+          <el-form-item label="风险" prop="severity"><el-select v-model="query.severity" clearable placeholder="全部风险" style="width:130px"><el-option v-for="item in severities" :key="item.value" :label="item.label" :value="item.value" /></el-select></el-form-item>
+          <el-form-item label="地点" prop="location"><el-input v-model="query.location" clearable placeholder="请输入地点" @keyup.enter="search" /></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-alert" />
+        <el-table v-loading="loading" :data="items" border row-key="id" @row-dblclick="openDetail">
+          <el-table-column prop="createdAt" label="创建时间" min-width="180"><template #default="scope">{{ parseTime(scope.row.createdAt) }}</template></el-table-column>
+          <el-table-column prop="summary" label="预警事项" min-width="200" show-overflow-tooltip />
+          <el-table-column prop="location" label="地点" min-width="140" show-overflow-tooltip />
+          <el-table-column label="风险" width="90"><template #default="scope"><el-tag :type="severityType(scope.row.severity)">{{ severityName(scope.row.severity) }}</el-tag></template></el-table-column>
+          <el-table-column label="状态" width="90"><template #default="scope"><el-tag :type="statusType(scope.row.status)">{{ statusName(scope.row.status) }}</el-tag></template></el-table-column>
+          <el-table-column prop="eventCount" label="关联事件" width="100" />
+          <el-table-column label="操作" width="90"><template #default="scope"><el-button type="primary" link @click="openDetail(scope.row)">详情</el-button></template></el-table-column>
+          <template #empty><el-empty description="暂无预警" /></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-card>
+
+      <el-drawer v-model="drawer" title="预警详情" size="min(720px, 100%)">
+        <div v-loading="detailLoading">
+          <el-alert v-if="detailError" :title="detailError" type="error" show-icon :closable="false" class="state-alert" />
+          <BellAlertDetail v-if="detail && lifecycle" :detail="detail" :lifecycle="lifecycle" @changed="reloadDetail" @go-event="goEvent" />
+        </div>
+      </el-drawer>
+    </template>
+  </BasicLayout>
+</template>
+
+<script>
+import { getAlert, listAlerts } from '@/api/bell/alert'
+import { getAlertLifecycle } from '@/api/bell/alert-lifecycle'
+import BellAlertDetail from './detail.vue'
+
+export default {
+  name: 'BellAlerts',
+  components: { BellAlertDetail },
+  data() {
+    return {
+      loading: false, detailLoading: false, error: '', detailError: '', items: [], total: 0,
+      drawer: false, detail: null, lifecycle: null, activeId: '',
+      severities: [{ label: '低', value: 'low' }, { label: '中', value: 'medium' }, { label: '高', value: 'high' }, { label: '紧急', value: 'critical' }],
+      query: { pageIndex: 1, pageSize: 10, status: '', severity: '', location: '' }
+    }
+  },
+  created() { this.load().then(() => { if (this.$route.query.alertId) this.openDetail({ id: this.$route.query.alertId }) }) },
+  methods: {
+    async load() {
+      this.loading = true; this.error = ''
+      try { const response = await listAlerts(this.query); this.items = response.data.list || []; this.total = response.data.count || 0 } catch (error) { this.error = error.message || '预警加载失败' } finally { this.loading = false }
+    },
+    search() { this.query.pageIndex = 1; this.load() },
+    reset() { this.$refs.queryForm.resetFields(); this.search() },
+    async openDetail(row) {
+      this.drawer = true; this.detailLoading = true; this.detailError = ''; this.detail = null; this.lifecycle = null; this.activeId = row.id
+      try { const [detailResponse, lifecycleResponse] = await Promise.all([getAlert(row.id), getAlertLifecycle(row.id)]); this.detail = detailResponse.data; this.lifecycle = lifecycleResponse.data.detail } catch (error) { this.detailError = error.message || '预警详情加载失败' } finally { this.detailLoading = false }
+    },
+    async reloadDetail() { await this.openDetail({ id: this.activeId }); await this.load() },
+    goEvent(id) { this.drawer = false; this.$router.push({ path: '/bell/events', query: { eventId: id }}) },
+    severityName(value) { return { low: '低', medium: '中', high: '高', critical: '紧急' }[value] || value },
+    severityType(value) { return { low: 'info', medium: 'primary', high: 'warning', critical: 'danger' }[value] || 'info' },
+    statusName(value) { return { open: '待处理', acknowledged: '处理中', closed: '已完成' }[value] || value },
+    statusType(value) { return { open: 'danger', acknowledged: 'warning', closed: 'success' }[value] || 'info' }
+  }
+}
+</script>
+
+<style scoped>
+.page-heading h2{margin:0}.page-heading p{margin:6px 0 0;color:var(--el-text-color-secondary)}.state-alert{margin-bottom:16px}h3{font-size:16px;margin:22px 0 10px}
+</style>

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

@@ -0,0 +1,103 @@
+<template>
+  <BasicLayout>
+    <template #wrapper>
+      <el-card class="box-card">
+        <template #header>
+          <div class="page-heading">
+            <div><h2>事件查询</h2><p>原始事件只读保存，规则评估和预警不会改写事件。</p></div>
+          </div>
+        </template>
+        <el-form ref="queryForm" :model="query" :inline="true">
+          <el-form-item label="事件类型" prop="eventType"><el-input v-model="query.eventType" clearable placeholder="请输入事件类型" @keyup.enter="search" /></el-form-item>
+          <el-form-item label="地点" prop="location"><el-input v-model="query.location" clearable placeholder="请输入地点" @keyup.enter="search" /></el-form-item>
+          <el-form-item label="风险" prop="severity">
+            <el-select v-model="query.severity" clearable placeholder="全部风险" style="width: 130px">
+              <el-option v-for="item in severities" :key="item.value" :label="item.label" :value="item.value" />
+            </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-alert" />
+        <el-table v-loading="loading" :data="items" border row-key="id" @row-dblclick="openDetail">
+          <el-table-column prop="occurredAt" label="发生时间" min-width="180"><template #default="scope">{{ parseTime(scope.row.occurredAt) }}</template></el-table-column>
+          <el-table-column prop="eventType" label="事件类型" min-width="160" show-overflow-tooltip />
+          <el-table-column prop="location" label="地点" min-width="150" show-overflow-tooltip />
+          <el-table-column label="风险" width="90"><template #default="scope"><el-tag :type="severityType(scope.row.severity)">{{ severityName(scope.row.severity) }}</el-tag></template></el-table-column>
+          <el-table-column prop="alertCount" label="关联预警" width="100" />
+          <el-table-column label="操作" width="90"><template #default="scope"><el-button type="primary" link @click="openDetail(scope.row)">详情</el-button></template></el-table-column>
+          <template #empty><el-empty description="暂无事件" /></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-card>
+
+      <el-drawer v-model="drawer" title="事件详情" size="min(680px, 100%)">
+        <div v-loading="detailLoading">
+          <el-alert v-if="detailError" :title="detailError" type="error" show-icon :closable="false" class="state-alert" />
+          <template v-if="selected">
+            <el-descriptions :column="1" border>
+              <el-descriptions-item label="发生事项">{{ selected.eventType }}</el-descriptions-item>
+              <el-descriptions-item label="地点">{{ selected.location }}</el-descriptions-item>
+              <el-descriptions-item label="发生时间">{{ parseTime(selected.occurredAt) }}</el-descriptions-item>
+              <el-descriptions-item label="紧急程度">{{ severityName(selected.severity) }}</el-descriptions-item>
+              <el-descriptions-item label="事件编号">{{ selected.id }}</el-descriptions-item>
+              <el-descriptions-item label="事件来源">{{ selected.producerId }}</el-descriptions-item>
+              <el-descriptions-item label="来源事件编号">{{ selected.sourceEventId }}</el-descriptions-item>
+              <el-descriptions-item label="证据引用">{{ selected.evidenceRef || '无' }}</el-descriptions-item>
+            </el-descriptions>
+            <h3>关联预警</h3>
+            <el-table :data="results.alerts" border row-key="id">
+              <el-table-column prop="summary" label="预警事项" min-width="180" />
+              <el-table-column prop="status" label="状态" width="90"><template #default><el-tag type="danger">待处理</el-tag></template></el-table-column>
+              <el-table-column label="操作" width="80"><template #default="scope"><el-button link type="primary" @click="goAlert(scope.row.id)">查看</el-button></template></el-table-column>
+              <template #empty><el-empty description="该事件未生成预警" /></template>
+            </el-table>
+            <h3>规则评估</h3>
+            <el-table :data="results.evaluations" border row-key="ruleId">
+              <el-table-column label="规则" min-width="160"><template #default="scope">{{ scope.row.ruleSnapshot && scope.row.ruleSnapshot.name }}</template></el-table-column>
+              <el-table-column prop="ruleVersion" label="版本" width="70" />
+              <el-table-column label="结果" width="90"><template #default="scope"><el-tag :type="scope.row.matched ? 'success' : 'info'">{{ scope.row.matched ? '命中' : '未命中' }}</el-tag></template></el-table-column>
+              <el-table-column prop="explanation" label="说明" min-width="180" />
+              <template #empty><el-empty description="接收时没有启用规则" /></template>
+            </el-table>
+          </template>
+        </div>
+      </el-drawer>
+    </template>
+  </BasicLayout>
+</template>
+
+<script>
+import { getEvent, getEventRuleResults, listEvents } from '@/api/bell/event'
+
+export default {
+  name: 'BellEvents',
+  data() {
+    return {
+      loading: false, detailLoading: false, error: '', detailError: '', items: [], total: 0,
+      drawer: false, selected: null, results: { alerts: [], evaluations: [] },
+      severities: [{ label: '低', value: 'low' }, { label: '中', value: 'medium' }, { label: '高', value: 'high' }, { label: '紧急', value: 'critical' }],
+      query: { pageIndex: 1, pageSize: 10, eventType: '', location: '', severity: '' }
+    }
+  },
+  created() { this.load().then(() => { if (this.$route.query.eventId) this.openDetail({ id: this.$route.query.eventId }) }) },
+  methods: {
+    async load() {
+      this.loading = true; this.error = ''
+      try { const response = await listEvents(this.query); this.items = response.data.list || []; this.total = response.data.count || 0 } catch (error) { this.error = error.message || '事件加载失败' } finally { this.loading = false }
+    },
+    search() { this.query.pageIndex = 1; this.load() },
+    reset() { this.$refs.queryForm.resetFields(); this.search() },
+    async openDetail(row) {
+      this.drawer = true; this.detailLoading = true; this.detailError = ''; this.selected = null
+      try { const [eventResponse, resultResponse] = await Promise.all([getEvent(row.id), getEventRuleResults(row.id)]); this.selected = eventResponse.data; this.results = resultResponse.data } catch (error) { this.detailError = error.message || '事件详情加载失败' } finally { this.detailLoading = false }
+    },
+    goAlert(id) { this.drawer = false; this.$router.push({ path: '/bell/alerts', query: { alertId: id }}) },
+    severityName(value) { return { low: '低', medium: '中', high: '高', critical: '紧急' }[value] || value },
+    severityType(value) { return { low: 'info', medium: 'primary', high: 'warning', critical: 'danger' }[value] || 'info' }
+  }
+}
+</script>
+
+<style scoped>
+.page-heading h2{margin:0}.page-heading p{margin:6px 0 0;color:var(--el-text-color-secondary)}.state-alert{margin-bottom:16px}h3{font-size:16px;margin:22px 0 10px}
+</style>

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

@@ -0,0 +1,96 @@
+<template>
+  <BasicLayout>
+    <template #wrapper>
+      <el-card class="box-card">
+        <template #header><div class="page-heading"><div><h2>规则配置</h2><p>规则修改会产生新版本，已有事件的命中快照不会改变。</p></div><el-button v-permisaction="['bell:rule:add']" type="primary" @click="openCreate">新增规则</el-button></div></template>
+        <el-form ref="queryForm" :model="query" :inline="true">
+          <el-form-item label="规则" prop="name"><el-input v-model="query.name" clearable placeholder="名称或编码" @keyup.enter="search" /></el-form-item>
+          <el-form-item label="状态" prop="enabled"><el-select v-model="query.enabled" clearable placeholder="全部状态" style="width:130px"><el-option label="已启用" :value="true" /><el-option label="已停用" :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-alert" />
+        <el-table v-loading="loading" :data="items" border row-key="id">
+          <el-table-column prop="name" label="规则名称" min-width="170" />
+          <el-table-column prop="code" label="规则编码" min-width="150" />
+          <el-table-column label="事件类型" min-width="150"><template #default="scope">{{ scope.row.eventType || '全部' }}</template></el-table-column>
+          <el-table-column label="最低风险" width="100"><template #default="scope"><el-tag :type="severityType(scope.row.minimumSeverity)">{{ severityName(scope.row.minimumSeverity) }}</el-tag></template></el-table-column>
+          <el-table-column label="地点包含" min-width="130"><template #default="scope">{{ scope.row.locationContains || '不限' }}</template></el-table-column>
+          <el-table-column prop="version" label="版本" width="70" />
+          <el-table-column label="状态" width="100"><template #default="scope"><el-switch v-model="scope.row.enabled" :disabled="!canEdit" inline-prompt active-text="启" inactive-text="停" @change="toggle(scope.row)" /></template></el-table-column>
+          <el-table-column label="操作" width="90"><template #default="scope"><el-button v-permisaction="['bell:rule:edit']" link type="primary" @click="openEdit(scope.row)">编辑</el-button></template></el-table-column>
+          <template #empty><el-empty description="暂无规则" /></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-card>
+
+      <el-dialog v-model="dialog" :title="editing ? '编辑规则' : '新增规则'" width="min(560px, calc(100vw - 32px))" :close-on-click-modal="false" @closed="clearForm">
+        <el-alert title="保存后仅影响随后接收的事件，历史命中记录保持原样。" type="info" :closable="false" class="state-alert" />
+        <el-form ref="ruleForm" :model="form" :rules="formRules" label-position="top">
+          <el-form-item label="规则编码" prop="code"><el-input v-model.trim="form.code" :disabled="editing" placeholder="如 gate-danger" /></el-form-item>
+          <el-form-item label="规则名称" prop="name"><el-input v-model.trim="form.name" maxlength="128" show-word-limit /></el-form-item>
+          <el-form-item label="事件类型"><el-input v-model.trim="form.eventType" placeholder="留空表示全部类型" maxlength="128" /></el-form-item>
+          <el-form-item label="最低风险" prop="minimumSeverity"><el-select v-model="form.minimumSeverity" style="width:100%"><el-option v-for="item in severities" :key="item.value" :label="item.label" :value="item.value" /></el-select></el-form-item>
+          <el-form-item label="地点包含"><el-input v-model.trim="form.locationContains" placeholder="留空表示不限地点" maxlength="128" /></el-form-item>
+        </el-form>
+        <template #footer><el-button @click="dialog=false">取消</el-button><el-button type="primary" :loading="saving" @click="save">保存</el-button></template>
+      </el-dialog>
+    </template>
+  </BasicLayout>
+</template>
+
+<script>
+import { createRule, listRules, setRuleEnabled, updateRule } from '@/api/bell/rule'
+
+export default {
+  name: 'BellRules',
+  data() {
+    return {
+      loading: false, saving: false, error: '', items: [], total: 0, dialog: false, editing: false, editingId: '',
+      severities: [{ label: '低', value: 'low' }, { label: '中', value: 'medium' }, { label: '高', value: 'high' }, { label: '紧急', value: 'critical' }],
+      query: { pageIndex: 1, pageSize: 10, name: '', enabled: null },
+      form: { code: '', name: '', eventType: '', minimumSeverity: 'high', locationContains: '' },
+      formRules: {
+        code: [{ required: true, pattern: /^[a-z0-9][a-z0-9_-]{1,127}$/, message: '请输入至少2位小写字母、数字、下划线或短横线', trigger: 'blur' }],
+        name: [{ required: true, message: '请输入规则名称', trigger: 'blur' }],
+        minimumSeverity: [{ required: true, message: '请选择最低风险', trigger: 'change' }]
+      }
+    }
+  },
+  computed: {
+    canEdit() { const values = this.$store.getters.permisaction || []; return values.includes('*:*:*') || values.includes('bell:rule:edit') }
+  },
+  created() { this.load() },
+  methods: {
+    async load() {
+      this.loading = true; this.error = ''
+      try { const response = await listRules(this.query); this.items = response.data.list || []; this.total = response.data.count || 0 } catch (error) { this.error = error.message || '规则加载失败' } finally { this.loading = false }
+    },
+    search() { this.query.pageIndex = 1; this.load() },
+    reset() { this.$refs.queryForm.resetFields(); this.query.enabled = null; this.search() },
+    openCreate() { this.editing = false; this.editingId = ''; this.dialog = true },
+    openEdit(row) {
+      this.editing = true; this.editingId = row.id
+      this.form = { code: row.code, name: row.name, eventType: row.eventType || '', minimumSeverity: row.minimumSeverity, locationContains: row.locationContains || '' }
+      this.dialog = true
+    },
+    async save() {
+      try {
+        await this.$refs.ruleForm.validate(); this.saving = true
+        const payload = { ...this.form, eventType: this.form.eventType || null, locationContains: this.form.locationContains || null }
+        if (this.editing) await updateRule(this.editingId, payload); else await createRule(payload)
+        this.msgSuccess(this.editing ? '规则已更新并生成新版本' : '规则已创建'); this.dialog = false; await this.load()
+      } catch (error) { if (error && error.message) this.error = error.message } finally { this.saving = false }
+    },
+    async toggle(row) {
+      try { await setRuleEnabled(row.id, row.enabled); this.msgSuccess(row.enabled ? '规则已启用' : '规则已停用'); await this.load() } catch (error) { row.enabled = !row.enabled; this.error = error.message || '规则状态更新失败' }
+    },
+    clearForm() { this.$refs.ruleForm && this.$refs.ruleForm.clearValidate(); this.form = { code: '', name: '', eventType: '', minimumSeverity: 'high', locationContains: '' } },
+    severityName(value) { return { low: '低', medium: '中', high: '高', critical: '紧急' }[value] || value },
+    severityType(value) { return { low: 'info', medium: 'primary', high: 'warning', critical: 'danger' }[value] || 'info' }
+  }
+}
+</script>
+
+<style scoped>
+.page-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.page-heading h2{margin:0}.page-heading p{margin:6px 0 0;color:var(--el-text-color-secondary)}.state-alert{margin-bottom:16px}
+</style>

Bell/ui/tests/unit/bell/alert-lifecycle/api.spec.js

@@ -0,0 +1,14 @@
+import request from '@/utils/request'
+import { acknowledgeAlert, closeAlert, getAlertLifecycle } from '@/api/bell/alert-lifecycle'
+jest.mock('@/utils/request', () => jest.fn(config => Promise.resolve(config)))
+describe('Bell alert lifecycle API', () => {
+  beforeEach(() => request.mockClear())
+  it('maps timeline, ack and close to protected Alert routes', async() => {
+    await getAlertLifecycle('a1'); await acknowledgeAlert('a1'); await closeAlert('a1', { outcome: 'site_normal' })
+    expect(request.mock.calls.map(call => call[0])).toEqual([
+      { url: '/api/v1/bell/alerts/a1/lifecycle', method: 'get' },
+      { url: '/api/v1/bell/alerts/a1/ack', method: 'post' },
+      { url: '/api/v1/bell/alerts/a1/close', method: 'post', data: { outcome: 'site_normal' }}
+    ])
+  })
+})

Bell/ui/tests/unit/bell/alert-lifecycle/detail.spec.js

@@ -0,0 +1,17 @@
+jest.mock('@/api/bell/alert-lifecycle', () => ({
+  acknowledgeAlert: jest.fn(),
+  closeAlert: jest.fn(),
+  getAlertLifecycle: jest.fn()
+}))
+
+import AlertDetail from '@/views/bell/alerts/detail.vue'
+import LifecycleTimeline from '@/views/bell/alerts/components/LifecycleTimeline.vue'
+describe('Bell ordinary-user lifecycle wording', () => {
+  it('maps technical states and outcomes to familiar wording', () => {
+    expect(AlertDetail.methods.statusName('open')).toBe('待处理')
+    expect(AlertDetail.methods.statusName('acknowledged')).toBe('处理中')
+    expect(AlertDetail.methods.statusName('closed')).toBe('已完成')
+    expect(AlertDetail.methods.outcomeName('false_positive')).toBe('误报')
+    expect(LifecycleTimeline.methods.outcomeName('unable_to_confirm')).toBe('无法确认')
+  })
+})

Bell/ui/tests/unit/bell/rule-alert/api.spec.js

@@ -0,0 +1,41 @@
+import request from '@/utils/request'
+import { getAlert, listAlerts } from '@/api/bell/alert'
+import { getEvent, getEventRuleResults, listEvents } from '@/api/bell/event'
+import { createRule, listRules, setRuleEnabled, updateRule } from '@/api/bell/rule'
+
+jest.mock('@/utils/request', () => jest.fn(config => Promise.resolve(config)))
+
+describe('Bell rule-alert API adapters', () => {
+  beforeEach(() => request.mockClear())
+
+  it('maps read operations to the versioned Bell routes', async() => {
+    await listAlerts({ status: 'open' })
+    await getAlert('alert-1')
+    await listEvents({ severity: 'high' })
+    await getEvent('event-1')
+    await getEventRuleResults('event-1')
+    await listRules({ enabled: true })
+
+    expect(request.mock.calls.map(call => call[0])).toEqual([
+      { url: '/api/v1/bell/alerts', method: 'get', params: { status: 'open' }},
+      { url: '/api/v1/bell/alerts/alert-1', method: 'get' },
+      { url: '/api/v1/bell/events', method: 'get', params: { severity: 'high' }},
+      { url: '/api/v1/bell/events/event-1', method: 'get' },
+      { url: '/api/v1/bell/events/event-1/rule-results', method: 'get' },
+      { url: '/api/v1/bell/rules', method: 'get', params: { enabled: true }}
+    ])
+  })
+
+  it('maps administrator writes without exposing unrelated operations', async() => {
+    const payload = { name: '区域规则', minimumSeverity: 'high' }
+    await createRule(payload)
+    await updateRule('rule-1', payload)
+    await setRuleEnabled('rule-1', false)
+
+    expect(request.mock.calls.map(call => call[0])).toEqual([
+      { url: '/api/v1/bell/rules', method: 'post', data: payload },
+      { url: '/api/v1/bell/rules/rule-1', method: 'put', data: payload },
+      { url: '/api/v1/bell/rules/rule-1/enabled', method: 'put', data: { enabled: false }}
+    ])
+  })
+})