workSignal property
The station's work-signal probe — the COMPLETION FENCE's binding. The Host
threads it into each AllocationContext.workSignal. Null (the default) ⇒
noWorkSignal ⇒ the fence is INERT and an inferred one-shot exit is taken at
face value (today's behavior). The live composer binds it to its own
source-control service's uncommitted-work probe, EXCLUDING the grid's own
runtime dir (grid_sdk's stationWorkSignal) — that impl is the composer's
opinion, never the engine's (ADR-0008 D5). Unlike the adopt seam, this one is
safe to arm ALONE: it can only WITHHOLD an unproven completion, never
double-run anything.
Implementation
final WorkSignalProbe? workSignal;