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/app/composables/db.ts

@@ -0,0 +1,22 @@
+import { useStorage } from '@vueuse/core'
+import { lastDbUpdated, namespace } from '~/constants'
+import { db, initDb } from '~/utils/db'
+
+let initialization: Promise<void> | undefined
+
+export function useIndexedDB() {
+  const dbUpdated = useStorage(`${namespace}:lastDbUpdated`, lastDbUpdated)
+
+  return {
+    init: () => {
+      initialization ??= (async () => {
+        const count = await db.recipes.count()
+        if (!count || dbUpdated.value !== lastDbUpdated) {
+          await initDb()
+          dbUpdated.value = lastDbUpdated
+        }
+      })().finally(() => { initialization = undefined })
+      return initialization
+    },
+  }
+}