Update app.py

app.py

@@ -127,4 +127,12 @@ with gr.Blocks(title="SysLink Food System Assistant") as demo:
         b.click(suggestion_click, inputs=[b, chat_ui, state], outputs=[user_in, chat_ui, state, s1, s2, s3, s4, s5, s6])
 
 # ✅ Expose ONE "app" object for Spaces 
-app = gr.mount_gradio_app(api, demo, path="/")
+app = gr.mount_gradio_app(api, demo, path="/")
+
+if __name__ == "__main__":
+    demo.queue()
+    demo.launch(
+        server_name="0.0.0.0",
+        server_port=int(os.environ.get("PORT", 7860)),
+        show_error=True,
+    )