Eliminate duplicate server launching and asyncio selector warnings

app.py

@@ -212,4 +212,5 @@ with gr.Blocks(title="ZipSplatPlus: 3D Gaussian Splatting with Interactive Viewe
 app = gr.mount_gradio_app(app, demo, path="/", allowed_paths=[str(OUT_DIR), tempfile.gettempdir()])
 
 if __name__ == "__main__":
-    demo.launch()
+    import uvicorn
+    uvicorn.run("app:app", host="0.0.0.0", port=7860)