feat: add Open Graph / Twitter preview image for link unfurls

Link previews need an og:image — the tags existed but the image was
commented out. Generated a 1200x630 branded card (static/og-preview.jpg,
~100KB: dark space gradient, circular headshot with gold ring, gold serif
title + tagline) and wired up:
- og:image (+ secure_url, type, width, height, alt)
- twitter:image (+ alt); twitter:card already summary_large_image

Absolute URLs point at https://tehriehldeal.com/og-preview.jpg so crawlers
(Slack/Discord/iMessage/Twitter/Facebook) can fetch it. Tags verified present
in the prerendered build/index.html.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
TehRiehlDealandClaude Opus 4.8 committed 2026-06-03 10:44:07 -07:00
1 parent 84112d8e42
commit 6ff99e0d51
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+11 -4

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