<!doctype html><html lang="en">  <head>    <meta charset="UTF-8" />    <meta name="viewport" content="width=device-width, initial-scale=1.0" />    <title>Executor Shell</title>  </head>  <body>    <div id="root"></div>    <script type="module" src="./mcp-app.tsx"></script>  </body></html>