docs(subagent): clarify interrupt edge cases

docs/core-data-structures/subagent.md

@@ -141,7 +141,7 @@ Follow-up authority comes from an exact live Agent tool context. The authenticat
 
 For both operations the caller signal owns lookup, materialization, and admission only until inbox acceptance. Afterwards the manager owns the Activation independently: later caller cancellation neither cancels the accepted turn nor disposes the child, and the seam exposes no steering operation.
 
-`SubagentService.interrupt(targetSessionId, authority)` is the one public stop: it authorizes synchronously, issues `Agent.cancel(cause, { keepInbox: true })` on the live target, and returns without awaiting quiescence. The Activation, its pending inbox work, and published descendants are untouched; only a later waking send resumes the parked FIFO queue. An absent target — unknown, one-shot, or already settled — and a manager-less composition are accepted no-ops; a wrong parent address or a stale, self-targeting, or non-ancestor caller rejects with `UNAUTHORIZED`.
+`SubagentService.interrupt(targetSessionId, authority)` is the one public stop: it authorizes synchronously, issues `Agent.cancel(cause, { keepInbox: true })` on the live target, and returns without awaiting quiescence. The Activation, its unclaimed pending inbox work, and published descendants are untouched; work already claimed into the interrupted turn is not requeued. Once the interrupted driver is idle, a waking send resumes the parked FIFO queue. An absent target — unknown, one-shot, or already settled — and a manager-less composition are accepted no-ops. For a live target, a mismatched parent address or caller outside its live ancestry rejects with `UNAUTHORIZED`; stale ancestor objects and self-targeting ancestor requests reject before target lookup.
 
 ```ts type-equiv
 /**