feat(social): add Open Graph and Twitter Card metadata + hero graphic
Added social media preview support to improve shareability on Facebook,
Twitter, LinkedIn, and other platforms.
Changes:
- Added social preview image (1200x630px blueprint graphic)
- Implemented Open Graph metadata (og:title, og:description, og:image, etc.)
- Implemented Twitter Card metadata (twitter:card, twitter:image, etc.)
- Added Facebook page reference (og:see_also)
- Integrated hero graphic into architecture.html (visual anchor)
Pages updated:
- index.html
- architecture.html
- values.html
- docs.html
- researcher.html
- implementer.html
- leader.html
Social metadata includes:
- Page-specific titles and descriptions
- 1200x630px social preview image
- Proper image dimensions for optimal rendering
- Facebook page link: https://www.facebook.com/agenticgovernance
Fixes: Facebook "Link unavailable" error when sharing site URLs
Impact: Improves content discoverability and shareability (Community value)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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