Remove uvicorn run to let HF launcher handle it

app.py

@@ -36,6 +36,4 @@ with gr.Blocks() as demo:
 # We serve Gradio at /gradio, and the rest is our FastAPI app (which serves React)
 app = gr.mount_gradio_app(fastapi_app, demo, path="/gradio")
 
-if __name__ == "__main__":
-    port = int(os.getenv("PORT", "7860"))
-    uvicorn.run(app, host="0.0.0.0", port=port)
+# Hugging Face will automatically run Uvicorn on `app`