The operator, 2026-10-30: an Approve must be acted on and known at once, and a session should hear approval requests. Adds mesh-delivery-gate.approval (approved, or approved and not handed past 60 s) and, one family per asker that uses the operator-channel seat, operator-channel.asked.<asker> and operator-channel.decided.<asker>. Named one by one (ADR 0367 §2). Needs mesh-catalog fix/turn-handed-on-approve first: the gate's approval event and the seat's asked event are declared there.