Update app.py

app.py

@@ -912,8 +912,9 @@ if __name__ == "__main__":
         print(f"⚠️ Preload warning: {e}")
 
     demo = build_app()
+    demo.queue()  # must call queue() before launch on HF Spaces
     demo.launch(
         server_name="0.0.0.0",
         server_port=7860,
-        share=False,  # HF Spaces proxy handles this
+        share=False,
     )