cdacc1f6ec
- 新增_missing_方法处理历史脏数据 - uploaded/success/ok/done → READY - upload/upload_start → UPLOADING - failed/fail/err → ERROR - process/running/run → PROCESSING - 未知值兜底为READY,不阻塞业务 - 新增27个单元测试覆盖全部场景