- skill count 24 → 25 in README / docs/README / agents-and-skills (add
  self-update to overview, management fold, and standalone-skill table)
- CHANGELOG: backfill missing [0.1.9] section (tag existed on remote
  with no body); add [0.1.10/11/12/4] reference links; rebase
  [Unreleased] from v0.1.9 → v0.1.12
- CHANGELOG [0.1.0] Roadmap: add STATUS UPDATE noting upgrade & hook
  test are no longer stubs (only plugin install/remove remains)
- cli.md: drop "(v0.2+)" from `hook test` (already shipped); replace
  hard-coded "v0.3" plugin install/remove plan with issue link
- contributing.md: add build/ci/release to allowed types (matches
  pr-title.yml); rewrite release flow to OIDC trusted publishing via
  publish.yml; document absolute-URL exception for root README

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Co-authored-by: Claude <noreply@anthropic.com>