The grant is a line in the bus's user list the controller itself composes and a push delivers, so
the first controller to serve its seat started before the list named it and every subscription was
refused for good (2026-09-30). A refused subscription is retried until it holds.
A seat's protocol lives in the store (migration 0047; seeded additively), a served verb carries its
description and schema, holding a mesh seat requires serving its verbs, a node-scoped seat's tool
carries the node, and the control plane serves status, nodes, node, modules, seats, builds, plan,
assign, unassign, push, build and tools on its seat by running the same commands (novox/hq ADR 0132,
ADR 0154, design 33). A grant of * reaches a role's tools; seat:<seat>.<verb> grants one.
jschoubben