Add basic endpoints

backend/app/providers/auth_provider.py

@@ -3,9 +3,9 @@ from ..models.user import User
 from ..settings import get_settings
 
 
-class AuthProvider:
+class AuthContext:
     """
-    Provides authentication methods for the API.
+    Provides authentication context for the current request.
     """
 
     def __init__(