fix: 发版后软刷新检测入口壳并在 chunk 404 时硬刷新

避免 Logo/下拉刷新仍跑旧 index.js，以及站内消息预取失败弹出英文 toast。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/main.tsx

@@ -4,11 +4,18 @@ import { applyTheme, getStoredTheme } from './utils/theme';
 import App from './App';
 import { consumeHomeBoot } from './utils/homeBoot';
 import { beginHomeHydrate } from './utils/homeHydrate';
+import { reloadForStaleChunk } from './utils/chunkLoad';
 import { ensureColdBootReady, isMainLayoutPath } from './utils/prefetchRoute';
 
 applyTheme(getStoredTheme());
 consumeHomeBoot();
 
+// Vite modulepreload / 动态 import 失败（发版后旧 hashed URL 404）
+window.addEventListener('vite:preloadError', (event) => {
+  event.preventDefault();
+  reloadForStaleChunk();
+});
+
 function hasSSRHome(): boolean {
   return !!document.querySelector('#root .ssr-home');
 }