Both remaining review findings were the same shape as the one before them, and it is the
shape this repo keeps recording: a claim corrected in one place, its copy left standing
somewhere else in the tree.
* `docs/ci-cd.md` said "gates nothing" in the small-lane paragraph while the section 1441
lines below said the opposite. A red preflight lands in the PR's combined status, which
the merge gate reads (#598) — what it does not do is SKIP the jobs it diagnoses, and
that is now the sentence in both places.
* Two docstrings in the preflight's test file still described the disarmed script as
warning and exiting 0. Built the mutant and ran it: it emits an error and exits 1. The
exit code separates nothing now that an unverifiable answer fails too — the DIAGNOSTIC
is what the mutation destroys, which is what `mutation_manifest.py` already said and
the prose next to it contradicted.
Nits from the same pass: the admin-cron URL is quoted (`?` globs in zsh, the operator's
shell); the retry assertion's message quoted a threshold it does not use; the arm table
omitted the malformed-credential shape the code and tests both have; `buildx inspect` no
longer `--bootstrap`s a builder just to read its name, and an empty capture no longer
produces a noisy `buildx use ""`.
Swept the tree for the shape rather than the two reported lines: the surviving "exits 0"
and "could-not-tell" hits are other subsystems, or the concept named as a concept.
refs #772