UseSubmissionQueueReturn

Reactive handle on the server-side submission queue.

Populated when submit() is invoked with multitaskStrategy: "enqueue" while another run is in flight. The returned object is stable per snapshot so consumers can pass entries straight into a <Fragment key={e.id}> list without extra memoisation.

Today the queue is maintained client-side; once the server starts emitting a dedicated queue channel (roadmap A0.3) the controller will mirror that state directly — the hook surface will not change.