fix: improve maintenance and synchronize live conversations

backend/tests/repo/test_role_repo.py

@@ -20,7 +20,6 @@ from app.models.role import Role
 from app.models.permission import Permission
 from app.models.user import User
 from app.models.organization import Organization
-from uuid import uuid4, UUID
 
 @pytest.fixture
 def test_organization(db):