Add test and lint steps to publish workflow

[Copilot]

The publish-release workflow publishes to npm without running tests or linting, creating risk of publishing broken packages if the PR process is bypassed.

Changes

• Added npm test step before creating GitHub release and publishing to npm
• Added npm run lint step before creating GitHub release and publishing to npm
• Both steps run conditionally when commit is a version bump, matching existing workflow pattern

Workflow Order

- Install dependencies
- Run tests          # New
- Run linting        # New
- Create GitHub Release
- Publish to npm

This mirrors the CI workflow's quality checks, ensuring the same validation occurs before publishing regardless of how code reaches main.

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[mkistler]

Looks good. 👍