feat: 添加异步启动和端口暴露功能

- 引入PortLinkClient用于端口暴露
- 使用asyncio实现Gradio的异步启动
- 添加全局端口配置变量
- 使用nest_asyncio解决异步事件循环问题

app.py

@@ -1,8 +1,26 @@
 import gradio as gr
+from yanghao.portlink import PortLinkClient as Client
+import psutil
+import asyncio
+
+# 全局端口配置
+PORT = 7860
 
 def greet(name):
     return "Hello " + name + "!"
 
 demo = gr.Interface(fn=greet, inputs="text", outputs="text")
-    
-demo.launch()
+
+async def launchGradio():
+    demo.launch(server_name="0.0.0.0", server_port=PORT)
+
+async def main():
+    gr_task = asyncio.create_task(launchGradio())
+    # Expose port to the public internet. Check the debug output for the specific public URL.
+    async with Client(PORT) as c:
+        await c.link(PORT)
+
+if __name__ == "__main__":
+    import nest_asyncio
+    nest_asyncio.apply()
+    await main()