A run's candidate catalog-revision (meshcatalogclient's candidates hook) is read whole through the
catalog seat's revision verb; the assignment graph is computed from it in place of its branch's half
and kept apart from trunk's under candidate.<group>.<heads>, the group run-<id>. revision, entry and
difference serve it (a candidate against trunk). The runner's group-ended of the run drops it and
writes no want; the gate's heads-replaced drops nothing; its entries stay while it is kept.
Builds: design 47 G §189, §190, §186, §187, §359, A-201, A-235, A-160
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h