site: launch atjam.at — migration, SEO meta, public pages
Move atjam.site → atjam.at end-to-end (DEPLOY, PUBLISHING, web README,
OAuth metadata, oauth.ts). Add OG/Twitter cards, security headers, and
footer nav in root. Per-route meta for jam/round/new/callback. New
public pages: 404 catch-all, privacy, terms; new favicon and robots.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
site: launch atjam.at — migration, SEO meta, public pages
Move atjam.site → atjam.at end-to-end (DEPLOY, PUBLISHING, web README,
OAuth metadata, oauth.ts). Add OG/Twitter cards, security headers, and
footer nav in root. Per-route meta for jam/round/new/callback. New
public pages: 404 catch-all, privacy, terms; new favicon and robots.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>