Update app.py

app.py

@@ -242,6 +242,11 @@ MAX_SEED = 1e7
 title = "## AI 3D Model Generator"
 description = "Our Image-to-3D Generator transforms your 2D photos into stunning, AI generated 3D models—ready for games, AR/VR, or 3D printing. Our AI 3D Modeling is based on Hunyuan 2.0. Check more in [imgto3d.ai](https://www.imgto3d.ai)."
 
+# 顶层增加哨兵 GPU 函数
+@spaces.GPU(duration=1)
+def _gpu_check():
+    return "GPU ready"
+
 with gr.Blocks().queue() as demo:
     gr.Markdown(title)
     gr.Markdown(description)
@@ -288,6 +293,7 @@ with gr.Blocks().queue() as demo:
         outputs=[html_export_mesh,file_export, glbPath_output, objPath_output]
     )    
 
+_gpu_check()   # 👈 顶层调用哨兵函数
 if __name__ == "__main__":
     # https://discuss.huggingface.co/t/how-to-serve-an-html-file/33921/2
     # create a FastAPI app