chore: trigger Vercel deployment

docs: add LICENSE, consent notice, and final README fixes

docs: update README for open-source accuracy

fix: revert email timeframes back to 72 hours

feat: move challenge content to Supabase, update timeframe to 5 days

security: harden for open-source — review findings

fix: improve email deliverability — rename sender, add spam guidance

fix: mobile chat UI overflow and viewport height issues

security: harden for open-source release

docs: comprehensive CLAUDE.md update reflecting all recent changes

feat: add vibe coded disclaimer and support email to footer

feat: add /challenge page with async challenge prompt

fix: accept_challenge flow, prettier response pages, time guidance

feat: redirect logged-in users to chat + softer conversation closing

feat: add LinkedIn profile assessment to scorecard and admin email