- Slim down README from ~400 lines to ~140 lines, keeping only essential content
- Reorganize docs/ into guide/, features/, reference/, images/ subdirectories
- Add GitHub badges (stars, forks, issues, PRs, license, language switch)
- Extract env vars, FAQ, fixes, project structure, global usage into separate docs
- Add LICENSE file (educational and research use only)
- Update all cross-references and issue template links