Update app.py

app.py

@@ -142,7 +142,7 @@ class SimpleNotaGenTool(Tool):
         Args:
             repo_id: Repository ID on HuggingFace
         """        
-        download_model_weights(repo_id=repo_id)
+        download_model_weights()
         logger.info("✅ NotaGen model weights downloaded successfully!")