A seat event's stream has one bus name, seatdef.KeptStream's, which the
generated contract carries as Stream<E>: HearSeatEvents takes it as it
stands and refuses a dotted or unprefixed name by name, so no part makes
the name a second time (SEAT_SEAT_...).
Builds: design 47 G §260
Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ
A seat's event kept apart from its family (the node-engine seat's running, kept last per subject; mesh-delivery's owed,
a stream with an age and a cap) had no helper: EventHub binds only the shared events stream, and dev-G-engine and
dev-G-forge each met it. process.SeatStreamName is the bus's name of a contract's Stream<E> (SEAT_<seat>_<event>), one
rule for its maker and its hearers; Account.SeatEventConsumerConfig the module's durable as the maker makes it (last
per subject where the event is kept so); Account.HearSeatEvents binds and pulls it, making nothing.
Builds: design 47 G §260, §24, §39, §146, §153, §199
Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ
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