fix(admin-web): auto-reload on stale dynamic-import chunks after deploy

Listen for vite:preloadError and router onError, force a one-shot reload
(10s cooldown via sessionStorage) when a hashed lazy-loaded module 404s
because a new deploy replaced it. Eliminates the user-visible "Failed to
fetch dynamically imported module" error on login and route navigation.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/admin-web/src/router/index.ts

@@ -1,5 +1,6 @@
 import { createRouter, createWebHistory } from 'vue-router'
 
+import { isChunkLoadError, reloadForStaleChunk } from '@/lib/chunk-reload'
 import { useAuthStore } from '@/stores/auth'
 import { pinia } from '@/stores/pinia'
 
@@ -282,4 +283,10 @@ router.beforeEach(async (to) => {
   return true
 })
 
+router.onError((err) => {
+  if (isChunkLoadError(err)) {
+    reloadForStaleChunk()
+  }
+})
+
 export { router }