- Add author, repository, homepage, keywords, and engines fields to
all 6 publishable package.json files
- Add README.md to react, tailwind-preset, and hex-background packages
- Add "type": "module" to web and react-native for consistency
- Rename web build script to .cjs for ESM package compatibility
- Remove overly broad "./dist/*" export from web package
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>