feat: update tag and timeline share panel copy for clarity and conciseness

style: enhance global CSS for better responsiveness of terminal chips and navigation pills

test: remove inline subscription test and add maintenance mode access code test

feat: implement media library picker dialog for selecting images from the media library

feat: add media URL controls for uploading and managing media assets

feat: add migration for music_enabled and maintenance_mode settings in site settings

feat: implement maintenance mode functionality with access control

feat: create maintenance page with access code input and error handling

chore: add TypeScript declaration for QR code module

playwright-smoke/tests/frontend.spec.ts

@@ -109,11 +109,6 @@ test('友链申请与订阅确认/偏好/退订链路可用', async ({ page, req
 
   await gotoPage(page, '/')
   await waitForHomeInteractive(page)
-  await page.locator('[data-subscribe-form] input[name="displayName"]').fill('首页订阅用户')
-  await page.locator('[data-subscribe-form] input[name="email"]').fill('inline-subscriber@example.com')
-  await page.locator('[data-subscribe-form] button[type="submit"]').click()
-  await expect(page.locator('[data-subscribe-status]')).toContainText('订阅')
-
   await waitForSubscriptionPopupReady(page)
   await page.locator('[data-subscription-popup-open]').click()
   await expect(page.locator('[data-subscription-popup-panel]')).toBeVisible()
@@ -123,10 +118,6 @@ test('友链申请与订阅确认/偏好/退订链路可用', async ({ page, req
   await expect(page.locator('[data-subscription-popup-status]')).toContainText('订阅')
 
   const subscriptionState = await getDebugState(request)
-  const inlineRecord = subscriptionState.subscriptions.find(
-    (item: { target: string; display_name: string }) => item.target === 'inline-subscriber@example.com',
-  )
-  expect(inlineRecord?.display_name).toBe('首页订阅用户')
   const latest = subscriptionState.subscriptions.find(
     (item: { target: string; display_name: string }) => item.target === 'playwright-subscriber@example.com',
   )
@@ -146,7 +137,32 @@ test('友链申请与订阅确认/偏好/退订链路可用', async ({ page, req
   await expect(page.locator('[data-unsubscribe-status]')).toContainText('成功退订')
 })
 
-test('GEO 分享面板、AI 摘要块与 llms 入口可用', async ({ page, request }) => {
+test('维护模式开启后需要口令才能进入前台', async ({ page, request }) => {
+  await patchAdminSiteSettings(request, {
+    maintenanceModeEnabled: true,
+    maintenanceAccessCode: 'staging-2026',
+  })
+
+  await gotoPage(page, '/articles/astro-terminal-blog')
+  await expect(page).toHaveURL(/\/maintenance\?returnTo=/)
+  await expect(page.getByRole('heading', { name: /正在维护/ })).toBeVisible()
+
+  await page.locator('input[name="code"]').fill('wrong-code')
+  await page.getByRole('button', { name: '进入站点' }).click()
+  await expect(page).toHaveURL(/error=invalid/)
+  await expect(page.getByText('口令不正确，请重新输入。')).toBeVisible()
+
+  await page.locator('input[name="code"]').fill('staging-2026')
+  await page.getByRole('button', { name: '进入站点' }).click()
+  await expect(page).toHaveURL(/\/articles\/astro-terminal-blog$/)
+  await expect(page.getByRole('heading', { name: 'Astro 终端博客信息架构实战' })).toBeVisible()
+
+  await gotoPage(page, '/')
+  await expect(page).toHaveURL(/\/$/)
+  await expect(page.locator('#home-results-count')).toContainText(/条结果/)
+})
+
+test('分享面板与 llms 入口可用', async ({ page, request }) => {
   test.setTimeout(120_000)
 
   await patchAdminSiteSettings(request, {
@@ -158,24 +174,22 @@ test('GEO 分享面板、AI 摘要块与 llms 入口可用', async ({ page, requ
   await waitForSubscriptionPopupReady(page)
   await expect(page.locator('head link[rel="alternate"][href$="/llms.txt"]')).toHaveCount(1)
   await expect(page.locator('head link[rel="alternate"][href$="/llms-full.txt"]')).toHaveCount(1)
-  await expect(page.getByRole('heading', { name: '给 AI 看的站点摘要' })).toBeVisible()
   await expect(page.getByRole('button', { name: '微信扫码' }).first()).toBeVisible()
 
   await gotoPage(page, '/about')
-  await expect(page.getByRole('heading', { name: '给 AI 看的身份摘要' })).toBeVisible()
   await expect(page.getByText('身份主页')).toBeVisible()
 
   await gotoPage(page, '/articles')
-  await expect(page.getByRole('heading', { name: '给 AI 看的归档摘要' })).toBeVisible()
+  await expect(page).toHaveURL(/\/articles$/)
 
   await gotoPage(page, '/reviews')
-  await expect(page.getByRole('heading', { name: '给 AI 看的评测摘要' })).toBeVisible()
+  await expect(page).toHaveURL(/\/reviews$/)
 
   await gotoPage(page, '/ask')
-  await expect(page.getByRole('heading', { name: '给 AI 看的问答页摘要' })).toBeVisible()
+  await expect(page.getByRole('heading', { name: 'AI 站内问答' })).toBeVisible()
 
   await gotoPage(page, '/friends')
-  await expect(page.getByRole('heading', { name: '给 AI 看的友链网络摘要' })).toBeVisible()
+  await expect(page).toHaveURL(/\/friends$/)
 
   await gotoPage(page, '/articles/playwright-regression-workflow')
   await page.getByRole('button', { name: '微信扫码' }).first().click()