Add a Gitea CI triage skill with legacy web-log fallback, document first-party and third-party skill roles, and register selected third-party code workflow sources.
Remove the first-party bulk refactor workflow in favor of the registered codebase migration replacement.
move the repository skills source from `codex/skills` to `skills`.
update vendor/install_skills paths, thirdparty sync pipeline, docs, and regression tests, including deployment-route e2e coverage.