v2.3.0
release: v2.3.0 — the mandate release Version bump across package.json, server.json, skills/registry.json, agent-kits mirror, codex plugin, widget-meta, and example registries. CHANGELOG entry covering all ten 2.3 steps + DTCG support. check:release passes; 1663 tests green; typecheck clean. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>