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/router/modules/albums.ts

@@ -0,0 +1,27 @@
+/**
+ * 相册管理路由（P1b Task 9 唯一受保护业务页——占位 stub）
+ */
+import { AppRouteRecord } from '@/types/router'
+
+export const albumsRoutes: AppRouteRecord = {
+  name: 'Albums',
+  path: '/albums',
+  component: '/index/index',
+  meta: {
+    title: 'menus.albums.title',
+    icon: 'ri:gallery-line'
+  },
+  children: [
+    {
+      path: 'manage',
+      name: 'AlbumsManage',
+      component: '/albums/manage',
+      meta: {
+        title: 'menus.albums.manage',
+        icon: 'ri:gallery-upload-line',
+        keepAlive: false,
+        fixedTab: true
+      }
+    }
+  ]
+}

apps/admin/src/router/modules/index.ts

@@ -0,0 +1,9 @@
+import { AppRouteRecord } from '@/types/router'
+import { albumsRoutes } from './albums'
+
+/**
+ * 导出所有模块化路由
+ * @photo/admin 裁剪：模板演示路由（dashboard/template/widgets/examples/system/
+ * article/result/exception/safeguard/help）已移除，仅保留业务菜单。
+ */
+export const routeModules: AppRouteRecord[] = [albumsRoutes]