fix(web): self-heal SPA chunk 404 after deploys

Port admin-web's chunk-reload guard to ops-web (vite:preloadError +
router.onError) so a stale tab landing on a lazy-loaded route triggers
a single reload instead of a hard 404. Also force index.html through
revalidation on both apps so the reload actually fetches a fresh entry
referencing the new chunk hashes; hashed asset URLs keep their long
immutable cache.

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

apps/ops-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'
 
@@ -143,3 +144,9 @@ router.afterEach((to) => {
     document.title = `${t} · 省心推`
   }
 })
+
+router.onError((err) => {
+  if (isChunkLoadError(err)) {
+    reloadForStaleChunk()
+  }
+})