Refactor imports and clean up unused code in authentication and user data modules

- Removed unused UserRole import from auth middleware.
- Reordered SQLAlchemy imports in UserData model for better organization.
- Ensured consistent import structure in service utilities by adjusting import order.

Author: daniel-su1

backend/app/middleware/auth.py

@@ -6,7 +6,6 @@
 
 from ..utilities.constants import LOGGER_NAME
 from ..utilities.service_utils import get_auth_service
-from ..schemas.user import UserRole
 
 security = HTTPBearer()
 logger = logging.getLogger(LOGGER_NAME("auth"))

backend/app/models/UserData.py

@@ -1,6 +1,6 @@
 import uuid
 
-from sqlalchemy import Column, ForeignKey, Integer, String, Date, Boolean, Text
+from sqlalchemy import Boolean, Column, Date, ForeignKey, String, Text
 from sqlalchemy.dialects.postgresql import UUID
 from sqlalchemy.orm import relationship
 

backend/app/utilities/service_utils.py

@@ -4,8 +4,8 @@
 from sqlalchemy.orm import Session
 
 from ..services.implementations.auth_service import AuthService
-from ..services.implementations.user_service import UserService
 from ..services.implementations.user_data_service import UserDataService
+from ..services.implementations.user_service import UserService
 from .db_utils import get_db