- Add CITATION.cff for academic citations and GitHub citation button
- Add "For AI Assistants" section in README with llms.txt reference
- Update machine-readable/llms.txt stats (4700+ → 9600+ lines)
- Bump version display to 3.8.0 in README footer
Improves discoverability in GitHub search, Google Scholar, and AI assistants
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
