chore: 清空 v2 实现，重建新架构骨架（人格化通用 Agent 运行时）

frontend/web/index.html

@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html lang="zh-CN">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <link rel="icon" type="image/png" href="/images/cyrene-avatar.png" />
-    <link rel="manifest" href="/manifest.json" />
-    <title>Cyrene — 昔涟</title>
-  </head>
-  <body class="bg-gray-950 text-gray-100">
-    <div id="root"></div>
-    <script type="module" src="/src/main.tsx"></script>
-  </body>
-</html>