feat: optimize performance and SEO, integrate Lighthouse CI

- Integrated imgproxy for centralized image optimization
- Implemented Lighthouse CI in Gitea pipeline with native Chromium
- Reached 100/100 SEO score by fixing canonicals, hreflang, and link text
- Optimized LCP by forcing Hero component visibility until hydration
- Decoupled analytics into an async shell to reduce TTI

package.json

@@ -63,6 +63,7 @@
     "@vitejs/plugin-react": "^5.1.4",
     "@vitest/ui": "^4.0.16",
     "autoprefixer": "^10.4.23",
+    "cheerio": "^1.2.0",
     "eslint": "^9.18.0",
     "happy-dom": "^20.6.1",
     "husky": "^9.1.7",
@@ -112,6 +113,7 @@
     "cms:push:testing:DANGER": "./scripts/sync-directus.sh push testing",
     "cms:push:prod:DANGER": "./scripts/sync-directus.sh push production",
     "pagespeed:test": "tsx ./scripts/pagespeed-sitemap.ts",
+    "pagespeed:audit": "./scripts/audit-local.sh",
     "pagespeed:urls": "tsx -e \"import sitemap from './app/sitemap'; sitemap().then(urls => console.log(urls.map(u => u.url).join('\\n')))\"",
     "remotion:render": "remotion render WebsiteVideo remotion/index.ts out.mp4",
     "remotion:preview": "remotion preview remotion/index.ts",