fix: improve maintenance and synchronize live conversations

backend/tests/api/test_chat_scope_roles.py

@@ -29,7 +29,7 @@ from sqlalchemy.orm import Session
 from uuid import uuid4
 
 from app.api import users as users_router
-from app.core.auth import get_current_user, require_permissions
+from app.core.auth import get_current_user
 from app.core.config import settings
 from app.core.security import get_password_hash
 from app.database import Base, get_db