han-release

Cut a Han release: update CHANGELOG.md with the changes since the last release, bump every plugin that changed, tag the suite version vX.Y.Z, and publish a GitHub release whose notes attribute every merged pull request to its author, credit every closed issue to the person who opened it, the people who contributed to it, and the people who worked on the fix, and link back to the full changelog for that version. Han ships as a parent meta-plugin (han) plus child plugins (han-core, han-github, han-reporting, and any future han-* extension); the skill versions each plugin independently. Use when releasing, cutting a release, shipping a new Han version, publishing release notes, or tagging a version. Reads each plugin's target version from its plugin.json; when a plugin has not been bumped past the latest tag yet, it proposes a semantic-versioning bump and confirms the whole plan before continuing. Requires the gh CLI, jq, and a clean git checkout. This is a repository-maintenance skill for the Han repo itself, not a general review or PR skill — use code-review for local review, post-code-review-to-pr to post a PR review, and update-pr-description for PR bodies.