- Add Messages.meta.blog and text.blog (BlogTexts) to types/messages
- Update all locales with blog UI strings and meta.blog
- Localize blog list, tag pages, and article detail (titles, labels, dates)
- Pass messages to ArticleListItem; TableOfContents supports localized title
- Use dictionary-based metadata; alternates cover all supported locales
- Sitemap: include /[lang]/blog/tag/{tag} and set blog list lastModified to newest post
- JSON-LD: hardcode site URL in getSiteUrl() for consistency