add get endpoint for container status

pr_agent/servers/azuredevops_server_webhook.py

@@ -107,11 +107,14 @@ async def handle_webhook(background_tasks: BackgroundTasks, request: Request):
         status_code=status.HTTP_200_OK, content=jsonable_encoder({"message": "webhook triggerd successfully"})
     )
 
-        
+@router.get("/")
+async def root():
+    return {"status": "ok"}
+    
 def start():
     app = FastAPI(middleware=[Middleware(RawContextMiddleware)])
     app.include_router(router)
     uvicorn.run(app, host="0.0.0.0", port=int(os.environ.get("PORT", "3000")))
 
 if __name__ == "__main__":
-    start()
+    start()