- Fix bug: post page was overriding og:image with 150x200 thumbnail
- og:type = "article" for posts (was always "website")
- article:published_time, article:modified_time, article:author, article:tag
- og:image:alt + twitter:image:alt (post headline)
- twitter:label1/data1 with reading time
- Remove thumbnail fallback from socialImage (falls back to site logo instead)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Peter Meier
44b991f7c1