fix(#41): expose rawJson in detail response, not just storage

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

server/app/goauto/sybimport/service.go

@@ -84,15 +84,26 @@ func (service *Service) List(ctx context.Context, request ListRequest) (ListResp
 	return ListResponse{Items: items, Total: total, Page: request.Page, PageSize: request.PageSize}, nil
 }
 
-func (service *Service) Detail(ctx context.Context, id uint64) (models.SYBProduct, error) {
+// DetailView exposes RawJSON, which the model deliberately keeps json:"-" so
+// List (and any other place a bare models.SYBProduct gets serialized) never
+// leaks the full raw payload by accident. This was caught before it shipped:
+// the Detail handler used to serialize the bare model directly, which meant
+// RawJSON — required by #41 ("原始JSON和结构化字段均可在详情查看") — was
+// silently unreachable through the API despite being stored correctly.
+type DetailView struct {
+	models.SYBProduct
+	RawJSON string `json:"rawJson"`
+}
+
+func (service *Service) Detail(ctx context.Context, id uint64) (DetailView, error) {
 	var record models.SYBProduct
 	if err := service.DB.WithContext(ctx).First(&record, id).Error; err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
-			return models.SYBProduct{}, notFound()
+			return DetailView{}, notFound()
 		}
-		return models.SYBProduct{}, internalError(err)
+		return DetailView{}, internalError(err)
 	}
-	return record, nil
+	return DetailView{SYBProduct: record, RawJSON: record.RawJSON}, nil
 }
 
 type ReparseRequest struct {

server/app/goauto/sybimport/service_test.go

@@ -2,7 +2,9 @@ package sybimport_test
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
+	"strings"
 	"testing"
 
 	"go-admin/app/goauto/models"
@@ -105,3 +107,30 @@ func TestServiceManualCorrectTrimsWhitespace(t *testing.T) {
 		t.Fatalf("expected trimmed values, got %q/%q", record.TargetColor, record.TargetSize)
 	}
 }
+
+// Regression test: Detail previously returned the bare model, whose RawJSON
+// field is json:"-" (to keep List from leaking it). That made the raw
+// payload silently unreachable through the API despite #41 requiring it in
+// the detail view. DetailView must carry it under a real JSON key.
+func TestServiceDetailExposesRawJSON(t *testing.T) {
+	db := openTestDB(t)
+	applied, err := sybimport.ApplyDetail(context.Background(), db, realOrder(), realDetailA())
+	if err != nil {
+		t.Fatalf("apply: %v", err)
+	}
+	service := sybimport.NewService(db)
+	detail, err := service.Detail(context.Background(), applied.SYBProduct.ID)
+	if err != nil {
+		t.Fatalf("detail: %v", err)
+	}
+	if detail.RawJSON == "" || detail.RawJSON == "{}" {
+		t.Fatalf("expected the real raw payload, got %q", detail.RawJSON)
+	}
+	encoded, err := json.Marshal(detail)
+	if err != nil {
+		t.Fatalf("marshal: %v", err)
+	}
+	if !strings.Contains(string(encoded), `"rawJson"`) {
+		t.Fatalf("serialized detail must expose rawJson, got %s", encoded)
+	}
+}