Refactor IndexController to return a simple message instead of an iframe. Update AudioRecorder and SimpleFileUpload components to include file name in the upload callback. Modify MessageEnter component to handle new file structure and improve message handling logic. Clean up unused state and enhance video message rendering. Update websocket message management to handle message IDs more robustly.

Moncter/app/controller/IndexController.php

@@ -8,25 +8,7 @@ class IndexController
 {
     public function index(Request $request)
     {
-        return <<<EOF
-<style>
-  * {
-    padding: 0;
-    margin: 0;
-  }
-  iframe {
-    border: none;
-    overflow: scroll;
-  }
-</style>
-<iframe
-  src="https://www.workerman.net/wellcome"
-  width="100%"
-  height="100%"
-  allow="clipboard-write"
-  sandbox="allow-scripts allow-same-origin allow-popups"
-></iframe>
-EOF;
+        return "我是数据中心，有何贵干？";
     }
 
     public function view(Request $request)