# 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