Update app.py

app.py

@@ -218,8 +218,13 @@ with gr.Blocks(title="ARF v4 Demo") as demo:
     history_btn.click(fn=lambda: decision_history[-10:], outputs=decision_output)
 
 # ========================= Mount FastAPI under /api =========================
-# Correct order: first the FastAPI app, then the Gradio blocks.
+
+# Mount FastAPI under /api
 app = gr.mount_gradio_app(fastapi_app, demo, path="/api")
 
+# This starts the server and keeps it alive
+if __name__ == "__main__":
+    demo.queue().launch(server_name="0.0.0.0", server_port=7860)
+    
 # Note: No manual server start. Hugging Face will serve this `app` (which is a FastAPI app with Gradio mounted)
 # and the Gradio interface will be at the root, API endpoints under /api.