chore: prepare for Hacker News launch

- Add MIT LICENSE file
- Fix YOUR_ORG placeholders in README and DEPLOYMENT docs
- Fix Node.js version mismatch in release workflow (21 → 22)
- Delete 17 internal debug/development docs
- Rewrite hero section for clarity (explain what TPMJS is in seconds)
- Add "What is TPMJS?" section to landing page
- Fix hardcoded emails to hello@tpmjs.com
- Fix hardcoded dates to December 2024
- Add package metadata (author, license, repository) to all published packages
- Clean up AI-sounding language throughout
- Add comprehensive LAUNCH_REVIEW.md with checklist

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

apps/web/public/.well-known/security.txt

@@ -1,4 +1,4 @@
-Contact: mailto:thomasalwyndavis@gmail.com
+Contact: mailto:hello@tpmjs.com
 Preferred-Languages: en
 Canonical: https://tpmjs.com/.well-known/security.txt
 Policy: https://tpmjs.com/.well-known/security.txt