Naiyuan Qing
3bd504fe5f
feat(web): SEO optimization and auth flow improvements for landing pages
- Split landing pages into Server/Client Components to enable Next.js metadata exports
- Add robots.ts, sitemap.ts, JSON-LD structured data, OpenGraph and viewport config
- Fix i18n hydration mismatch: detect locale server-side via cookie/Accept-Language header
- Replace localStorage with cookie for locale persistence (SSR-readable)
- Dynamic <html lang> based on locale cookie
- Optimize images with next/image (avif/webp formats, quality config)
- Add /homepage route as always-visible landing page (no auth redirect)
- Auth-aware CTA buttons: show "Dashboard"/"进入工作台" for logged-in users
- Login page redirects authenticated users to dashboard
- Unify logout/401 redirect to "/" instead of "/login"
- Fix title template to avoid double "Multica" suffix on homepage
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>