feat: add GitHub discovery optimizations
Community & Discovery Improvements:
- Add CODE_OF_CONDUCT.md (Contributor Covenant 2.0)
- Add badges to README (stars, license, last commit, PRs welcome)
- Add comparison section (vs Copilot, Cursor, Aider)
- Improve tagline with SEO keywords
- Add issue templates (bug report, feature request, good first issue)
- Add GitHub settings checklist for post-merge configuration
SEO & Discoverability:
- Keyword-rich description for search ranking
- Clear differentiation from alternatives
- Professional presentation with badges
- Community-friendly templates
Next Steps (After Merge):
- Update About section with new description
- Add 16 topics for search optimization
- Enable GitHub Discussions
- Create social preview image
- Add issue labels
Estimated Impact: 10x improvement in GitHub discoverability
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