feat(admin): art-design-pro integration with local session auth

P1b Task 9: apps/admin based on art-design-pro v3.0.2 (tag, commit
d224dd4; source recorded in apps/admin/SOURCE.md), trimmed to
layout/login/i18n/request/table-form core. Login wired to real
POST /v1/auth/password (single-token session), Bearer header on all
requests, 401 interceptor logout+redirect, request-driven sliding
renewal (refresh at ~80% TTL, single-flight), best-effort
POST /v1/auth/logout on user-menu logout. One protected stub page
(相册管理). Dev port 5176 strictPort + /v1 proxy to 8080. Admin keeps
its own eslint9 flat config; root eslint ignores apps/admin/**.
vitest unit tests for renewal pacing + Playwright e2e (guard redirect,
localized wrong-password error, login lands on stub, token persists
across reload, logout clears session).

Co-Authored-By: Claude Code <noreply@anthropic.com>

apps/admin/src/store/index.ts

@@ -0,0 +1,52 @@
+/**
+ * Pinia Store 配置模块
+ *
+ * 提供全局状态管理的初始化和配置
+ *
+ * ## 主要功能
+ *
+ * - Pinia Store 实例创建
+ * - 持久化插件配置（pinia-plugin-persistedstate）
+ * - 版本化存储键管理
+ * - 自动数据迁移（跨版本）
+ * - LocalStorage 序列化配置
+ * - Store 初始化函数
+ *
+ * ## 持久化策略
+ *
+ * - 使用 StorageKeyManager 生成版本化的存储键
+ * - 格式：sys-v{version}-{storeId}
+ * - 自动迁移旧版本数据到当前版本
+ * - 使用 localStorage 作为存储介质
+ *
+ * @module store/index
+ * @author Art Design Pro Team
+ */
+import type { App } from 'vue'
+import { createPinia } from 'pinia'
+import { createPersistedState } from 'pinia-plugin-persistedstate'
+import { StorageKeyManager } from '@/utils/storage/storage-key-manager'
+
+export const store = createPinia()
+
+// 创建存储键管理器实例
+const storageKeyManager = new StorageKeyManager()
+
+// 配置持久化插件
+store.use(
+  createPersistedState({
+    key: (storeId: string) => storageKeyManager.getStorageKey(storeId),
+    storage: localStorage,
+    serializer: {
+      serialize: JSON.stringify,
+      deserialize: JSON.parse
+    }
+  })
+)
+
+/**
+ * 初始化 Store
+ */
+export function initStore(app: App<Element>): void {
+  app.use(store)
+}