feat: add SharePanel component for social sharing with QR code support

- Implemented SharePanel component in `SharePanel.astro` for sharing content on social media platforms.
- Integrated QR code generation for WeChat sharing using the `qrcode` library.
- Added localization support for English and Chinese languages.
- Created utility functions in `seo.ts` for building article summaries and FAQs.
- Introduced API routes for serving IndexNow key and generating full LLM catalog and summaries.
- Enhanced SEO capabilities with structured data for articles and pages.

playwright-smoke/tests/frontend.spec.ts

@@ -1,6 +1,6 @@
 import { expect, test } from '@playwright/test'
 
-import { getDebugState, resetMockState } from './helpers'
+import { getDebugState, patchAdminSiteSettings, resetMockState } from './helpers'
 
 test.beforeEach(async ({ request }) => {
   await resetMockState(request)
@@ -100,6 +100,7 @@ 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-subscribe-status]')).toContainText('订阅')
 
   await page.locator('[data-subscription-popup-open]').click()
+  await expect(page.locator('[data-subscription-popup-panel]')).toBeVisible()
   await page.locator('[data-subscription-popup-form] input[name="displayName"]').fill('弹窗订阅用户')
   await page.locator('[data-subscription-popup-email]').fill('playwright-subscriber@example.com')
   await page.locator('[data-subscription-popup-form] button[type="submit"]').click()
@@ -128,3 +129,49 @@ test('友链申请与订阅确认/偏好/退订链路可用', async ({ page, req
   await page.getByRole('button', { name: '确认退订' }).click()
   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 }) => {
+  await patchAdminSiteSettings(request, {
+    seoWechatShareQrEnabled: true,
+  })
+
+  await page.goto('/')
+  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 page.goto('/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 page.goto('/articles')
+  await expect(page.getByRole('heading', { name: '给 AI 看的归档摘要' })).toBeVisible()
+
+  await page.goto('/reviews')
+  await expect(page.getByRole('heading', { name: '给 AI 看的评测摘要' })).toBeVisible()
+
+  await page.goto('/ask')
+  await expect(page.getByRole('heading', { name: '给 AI 看的问答页摘要' })).toBeVisible()
+
+  await page.goto('/friends')
+  await expect(page.getByRole('heading', { name: '给 AI 看的友链网络摘要' })).toBeVisible()
+
+  await page.goto('/articles/playwright-regression-workflow')
+  await page.getByRole('button', { name: '微信扫码' }).first().click()
+  await expect(page.locator('[data-article-wechat-qr-modal]')).toHaveAttribute('aria-hidden', 'false')
+  await expect(page.getByRole('heading', { name: '微信扫码分享' })).toBeVisible()
+  await expect(page.locator('[data-article-qr-download]')).toBeVisible()
+
+  await page.locator('[data-article-wechat-qr-close]').first().click()
+  await expect(page.locator('[data-article-wechat-qr-modal]')).toHaveAttribute('aria-hidden', 'true')
+
+  await page.goto('/categories/frontend-engineering')
+  await expect(page.getByRole('button', { name: '复制摘要' })).toBeVisible()
+
+  await page.goto('/tags/playwright')
+  await expect(page.getByRole('button', { name: '分享摘要' })).toBeVisible()
+
+  await page.goto('/reviews/1')
+  await expect(page.getByRole('button', { name: '复制摘要' })).toBeVisible()
+})