feat: add FastAPI manager API compatibility baseline

main/manager-api-fastapi/app/jobs/tasks.py

@@ -0,0 +1,18 @@
+from __future__ import annotations
+
+from app.core.config import get_settings
+from app.core.database import get_session_factory
+from app.core.redis import distributed_lock
+from app.repositories.knowledge import KnowledgeRepository
+from app.services.knowledge import KnowledgeDocumentService
+
+
+async def sync_running_knowledge_documents() -> int:
+    """Run one document-status pass under a cross-process Redis lock."""
+
+    settings = get_settings()
+    async with distributed_lock("jobs:knowledge-document-status", settings.job_lock_ttl_seconds) as acquired:
+        if not acquired:
+            return 0
+        async with get_session_factory()() as session:
+            return await KnowledgeDocumentService(KnowledgeRepository(session)).sync_running()