Fix imports

services/training/app/core/auth.py

@@ -5,11 +5,11 @@ Authentication utilities for training service
 import httpx
 from fastapi import HTTPException, status, Depends
 from fastapi.security import HTTPBearer
-import logging
+import structlog
 
 from app.core.config import settings
 
-logger = logging.getLogger(__name__)
+logger = structlog.get_logger()
 
 security = HTTPBearer()