The same two things as the GitHub workflows, in GitLab's shape: one lint
job, and a per-stack check/deploy button pair. Branch pipelines only, since
a bare `when: manual` would otherwise make GitLab build a merge request
pipeline that drops every job without rules — which looks exactly like the
deploy buttons having vanished.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
