hive-subagent-mcp: cover the non-goal interrupted-turn case for #4337

hive-subagent-mcp/src/session.rs

@@ -3870,6 +3870,7 @@ mod tests {
             StopReason::GoalReached(None),
             StopReason::NeedHelp("blocked".to_owned()),
             StopReason::TurnCap { turns: 5 },
+            StopReason::Cancelled,
         ] {
             let extended = turn_end_summary("n", &TurnEnd::Complete, Some(&stop));
             assert!(
@@ -4295,6 +4296,18 @@ done
         // `finish_turn` has cleared its liveness clock too.
         until("the run ends", || state.last_event_age("n").is_none()).await;
 
+        // This `start` had no goal, so the fake claude's clean exit after
+        // SIGINT (`TurnEnd::Complete`) is exactly the case that used to
+        // report "finished: turn complete" with no sign it was interrupted.
+        // `plan_after_turn` checks `stop_reason` before it checks `goals`, so
+        // the recorded `Cancelled` survives even here — this is the
+        // non-goal case the goal-run-cancel fix left unverified.
+        assert_eq!(
+            state.stop_reason("n"),
+            Some(StopReason::Cancelled),
+            "a plain (non-goal) interrupted turn must still record why it stopped"
+        );
+
         assert!(
             !acp_session_file(&dir, "n").exists() && !dir.join("prompts.methods").exists(),
             "a claude agent's subagent never touches an ACP agent"