fix: improve maintenance and synchronize live conversations

backend/tests/repo/test_group_repo.py

@@ -17,7 +17,7 @@ limitations under the License.
 import pytest
 from app.repositories.group import GroupRepository
 from app.models.user import UserGroup, User
-from uuid import uuid4, UUID
+from uuid import uuid4
 
 @pytest.fixture
 def group_repo(db):