chore: 导入清理前的完整工程状态（含 Capacitor 原生壳，作为回滚备份点）

apps/web/public/sw.js

@@ -0,0 +1,16 @@
+// Retire the old Workbox worker now that Cook no longer enables PWA caching.
+// Keep this URL available so returning visitors can leave the cached 2025 app.
+self.addEventListener('install', (event) => {
+  event.waitUntil(self.skipWaiting())
+})
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil((async () => {
+    await self.clients.claim()
+    const windows = await self.clients.matchAll({ type: 'window' })
+    await self.registration.unregister()
+    await Promise.allSettled(windows.map(window => window.navigate(window.url)))
+  })())
+})
+
+// No fetch handler: all requests use the network. Preserve saved user data.