- GitHub Actions CI across Node.js 18, 20, 22, and 24 against the packed npm artifact
- GitHub Actions publish workflow on release with npm trusted publishing
- `prepack` script to build distributions before `npm pack` / `npm publish`
### Changed
- Replace Travis CI with GitHub Actions
- Update README badges to GitHub Actions, npm, and jsDelivr
- Upgrade mocha and pin vulnerable transitive dependencies via npm overrides
