Branch protection requires mesh/merge-gate (and mesh/repo-check on the core
repositories) with no admin override, and the forge combines warning as a
failure. A note is now a success that says it; a repository without a
merge-check.sh is a success where repo-check is not required and a failure
for a person where it is; the status tool refuses the merge check's contexts.
One module answers 'did my change go out' for a commit and orders a
cross-repository change: one compiled state table, its state on the bus,
every transition said, noted on the commit and shown on the pull request.
The forge's holder gains the note, view and status tools it asks with, and
says closed pull requests and a merge's head and statuses.
jochen