The bed's kept streams (running, machine-away, machine-back, version-delivered) took subjects of their own, so a test that
widened EVENTS met "subjects overlap". They now source EVENTS' messages of their subject, as the grants part makes them
(KeptEvent.StreamConfig), and EVENTS takes mesh.seat.*.event.>. The bed answers the seat mesh-catalog's seat-definitions
from mesh-sdk's seatlisttest copy and its verb entry from the catalog half, so the seat server admits a caller once the
list is read (A-278). The composition step test calls input on its subject naming the caller (A-179) and waits for the
seat list read and the sourced running messages. TestTheCompositionStepComposesEachMachineThroughTheBuildSeat passes;
TestWantsAreWrittenAndNoDifferenceIs still fails (rule 7: web on ace held on an unread catalog entry).
Builds: design 47 G §354, §610, A-179, A-278
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h
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