feat(backend): update database schema and agent service

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

backend/app/main.py

@@ -31,6 +31,7 @@ from app.routers import (
     terminal_router,
     tools_router,
     remote_mount_router,
+    office_router,
 )
 from app.routers.scheduler import router as scheduler_router
 from app.services.scheduler_service import start_scheduler, stop_scheduler, get_scheduler_status
@@ -133,6 +134,7 @@ app.include_router(agent_sessions_router)
 app.include_router(terminal_router)
 app.include_router(tools_router)
 app.include_router(remote_mount_router)
+app.include_router(office_router)
 
 
 @app.get("/api/health")