mesh/merge-gate pass: builds build-agent, mesh-controller, route-proxy → ace, g14, novox, shanks; no bus step; every machine composes with the change as it…
node-uplink gained its first verbs in #116, both optional while its holders
catch up (ADR 0246). D3 read any verb as one the holder must answer for, and
raised a silent condition on every machine holding the seat. A seat whose
verbs are all optional now asks nothing of its holders' silence.
