New top rung after install/upgrade/backup-restore/functional: lint the exact
recipe ref under test; gap-caps per ladder semantics; verdict-neutral and
time-bounded; mirror-origin R014 plumbing must not pollute recipe lint results
(abra.py:109-114); all consumers (results/card/dashboard/badge/docs/tests)
updated; old artifacts still render. M1 = adversary-cold-verified implementation
pre-merge; M2 = real-CI proof incl. a genuine L5, a genuine lint-capped L4, and
2 drone-path runs. Recipe lint failures -> mirror PRs or DEFERRED, never merged.
