feat(ops): ECR-007 行为分析与 ECR-008 内容运营后台

落地埋点 ingest/数据看板、首页宫格 CMS 与测评上下架；含账号引导、问答流式与免责声明去重，以及 review P1 审计同事务修复。

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/ENGINEERING_SPEC/ECR-008-ops-content.md

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+# ENGINEERING_SPEC — ECR-008 运营内容 Ops-C
+
+权威设计：`docs/BACKEND_DESIGN/ECR-008-ops-content.md`  
+产品：`.ai/product/feature-spec/ops-content.md`
+
+## Implement order
+
+1. Migration `000014_ops_content`（`home_tools` + seed 12 格）+ ERD  
+2. `repository/home_tools_repo.go` · 扩展 `ScaleRepo` admin list/update status  
+3. `service/home`（或 `service/content`）+ admin 扩展：校验白名单、整表替换、审计  
+4. Handler：`GET /home/tools` 挂 DeviceAuth；admin home/scales 挂 AdminAuth  
+5. OpenAPI  
+6. SDK：`getHomeTools`  
+7. `user-h5`：`useHomePage` 拉 API + 静态回退  
+8. `admin-h5`：「内容」页两 Tab  
+9. Integration + 单测  
+10. TRACEABILITY · STATE · CHANGELOG · feature-map  
+
+## Constraints
+
+- 函数 ≤50 · 文件 ≤400  
+- UI → sdk/thin client → Handler → Service → Repository  
+- PUT home_tools：整批事务替换；失败整批回滚  
+- 不提交密钥  
+
+## Done when
+
+ECR Acceptance + DoD Review + ess-validate review