* chore(ci): add Dependabot for npm and GitHub Actions updates
- Weekly npm dependency updates with PR limit of 10
- Weekly GitHub Actions version updates with PR limit of 5
- Conventional commit prefixes (chore(deps), chore(ci))
* ci: add security audit workflow
- Run npm audit on push/PR and weekly schedule
- Fail on high-severity vulnerabilities using audit-ci
- Only audit production dependencies
* ci: add release-please for automated changelog and versioning
- Auto-generate CHANGELOG.md from Conventional Commits
- Create version bump PRs on push to main
- Works alongside existing release.yml for npm publish
* ci: add concurrency controls and Node.js version matrix
- Add concurrency groups to ci, e2e-headed, security workflows
to cancel duplicate runs on the same branch
- Test unit tests across Node 18/20/22 with fail-fast: false
- Update test step name to show Node version
* chore: bump minimum Node.js version from 18 to 20
- Update engines.node in package.json to >=20.0.0
- Update prerequisites in README.md and README.zh-CN.md
- Remove Node 18 from CI test matrix
* review: fix release token and prod-only audit scope
* docs: align Node 20 troubleshooting guidance
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Co-authored-by: jackwener <jakevingoo@gmail.com>
jakevin