SAFE in packages/seat/src/checkout.mjs adds maintenance.auto=false and
gc.auto=0; probe, tests, mutants m1-m3 (all killed), targeted gate
(seat 132/0, cli 184/0) and the leftover sweep. Candidate is build.patch
against 2727dd3ec; manifest digests check out.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
