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/main.ts

@@ -0,0 +1,25 @@
+import App from './App.vue'
+import { createApp } from 'vue'
+import { initStore } from './store'                 // Store
+import { initRouter } from './router'               // Router
+import language from './locales'                    // 国际化
+import '@styles/core/tailwind.css'                  // tailwind
+import '@styles/index.scss'                         // 样式
+import '@utils/sys/console.ts'                      // 控制台输出内容
+import { setupGlobDirectives } from './directives'
+import { setupErrorHandle } from './utils/sys/error-handle'
+
+document.addEventListener(
+  'touchstart',
+  function () {},
+  { passive: false }
+)
+
+const app = createApp(App)
+initStore(app)
+initRouter(app)
+setupGlobDirectives(app)
+setupErrorHandle(app)
+
+app.use(language)
+app.mount('#app')