- Configure semantic-release for simultaneous publishing to both registries
- Update GitHub Actions workflow with dual authentication setup
- Add npm configuration for both registry.npmjs.org and npm.pkg.github.com
- Update package.json with correct repository URL and registry config
- Enhance documentation across README, CONTRIBUTING.md, and .claude/ files
- GitHub Packages uses GITHUB_TOKEN, npm requires NPM_TOKEN secret
This provides redundancy and choice for package consumers while maintaining
the same automatic semantic versioning workflow.
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