adding main.py

app/main.py

@@ -8,7 +8,7 @@ from pydantic import ValidationError
 from app.models.huggingface_service import HuggingFaceTextGenerationService
 from fastapi.middleware.cors import CORSMiddleware
 from app.schemas.schemas import EnhancedDescriptionResponse
-from app.auth.auth0_jwt import get_authenticated_user
+from app.auth.placeholder_auth import get_authenticated_user
 # MCP imports removed
 
 app = FastAPI(