fix: improve maintenance and synchronize live conversations

backend/tests/services/test_shopify_session.py

@@ -18,7 +18,7 @@ import pytest
 import jwt
 import time
 import uuid
-from unittest.mock import MagicMock, patch, AsyncMock
+from unittest.mock import MagicMock, patch
 from fastapi import HTTPException, Request
 from sqlalchemy.orm import Session