结构（fastify-cli 官方布局）：
- plugins/ 用 fastify-plugin 装饰共享资源（db/mysql/mongoose），生命周期随实例
- routes/ 目录即 URL 前缀，autoload 注册；DMS 用 autohooks.js 做 onRequest 鉴权
- 新增 schemas/（zod 契约）、clients/（外部系统）、lib/（纯工具）、db/schema/、models/
- 跨目录引用改用 #src/* 子路径别名

契约（破坏性）：
- DMS 接口的请求体/查询参数/响应字段统一 snake_case，与 MySQL 列名一致，
  派生字段（can_edit_project、editable_stages、project_manager_name 等）同样下划线
- logs(Mongo) 与微信接口保持 camelCase
- center-dms 需与本次同批次发布

其他：
- 错误处理：4xx 记 warn（不打堆栈），5xx 记 error；统一错误响应结构
- 性能：日志索引、MySQL 连接池可配、gzip 压缩
- 运维：/health/ready 探活、x-request-id 回传、SIGTERM 优雅退出
- 依赖升级（axios/mysql2/mongoose/zod/fastify 等），生产漏洞 7 → 0

- Added `ali-oss` dependency for OSS integration.
- Implemented `import-cases.js` script to read and normalize case data from a JSON source.
- Enhanced configuration to include OSS settings for case JSON storage.
- Created `oss.js` library for handling OSS uploads.
- Updated error handling middleware to improve status code validation.
- Refactored authentication service to cache user data and reduce redundant requests.
- Introduced `syncCasesToPublic` function in the cases service to upload case data to OSS.
- Added new route for case synchronization in the DMS routes.
- Updated project service to ensure consistent product name handling.

- Implemented manual stage transitions and approval rules in workflow.js.
- Added current user retrieval utility in current-user.js.
- Refactored logs controller to simplify error handling and improve readability.
- Introduced validation for logs routes using zod.
- Enhanced wechat controller with improved error handling and validation.
- Created wx-chart controller and routes for managing chart data.
- Added test-watch.mjs for application loading confirmation.