feat: complete M1-M3 infrastructure — OSS client, native execution chain, rule lifecycle API, system docs

- M1: unified OSS client (upload/download/presign) + path utils + config
- M2: rule service with validate/create/publish/rollback + binding CRUD endpoints
- M3: native AuditCtx runner, file/rule resolvers, storage adapter with full persistence
- docs: SYSTEM_OVERVIEW.md as comprehensive architecture reference
- fix: double finalize — terminal state now written once by finalize_run

fastapi_modules/fastapi_leaudit/services/auditService.py

@@ -9,7 +9,7 @@ class IAuditService(ABC):
     """评查服务接口。"""
 
     @abstractmethod
-    async def Run(self, DocumentId: int) -> AuditRunVO:
+    async def Run(self, DocumentId: int, RuleType: str | None = None, Force: bool = False) -> AuditRunVO:
         """触发文档评查。"""
         ...