Fix Gradio Error

I've updated the`backend/app.py` file to fix the runtime error you encountered. The issue was caused by using an incorrect Gradio function (`mount_gradio_app` ) to integrate the Flask API. I replaced it with the appropriate method (`mount_wsgi_app` within a Gradio`Blocks` structure), which should now allow the application to run correctly, especially in environments like Hugging Face Spaces.

app.py

@@ -166,11 +166,22 @@ iface = gr.Interface(
     allow_flagging='never'
 )
 
-# Montar la interfaz Gradio en la app Flask en la ruta raíz
-app = gr.mount_gradio_app(app, iface, path="/")
+# --- Integration and Execution ---
+
+# Create a main Gradio Blocks app to host both the UI and the API
+with gr.Blocks(title="🏊u200d♂️ 42CodeRunner") as demo:
+    # Render the defined interface within the Blocks
+    iface.render()
+
+# Mount the Flask app (containing the API) onto the Gradio Blocks app under /api
+# This makes the Flask routes available at paths like /api/execute
+demo = gr.mount_wsgi_app(demo, app, path="/api")
 
 # --- Ejecución de la App ---
 
 if __name__ == '__main__':
-    port = int(os.environ.get('PORT', 5000))
-    app.run(host='0.0.0.0', port=port)
+    # Use Gradio's default port or environment variable
+    port = int(os.environ.get('PORT', 7860))
+    # Launch the combined Gradio Blocks app
+    # Allow connection from network (needed for Docker/Spaces)
+    demo.launch(server_name='0.0.0.0', server_port=port)