race the subconscious peek against cancel

mid_turn_peek was a bare await while the model call three hundred lines up
was already guarded, so a subconscious that never answered parked the turn
somewhere /cancel could not reach it — twenty minutes, measured 2026-08-15,
on a provider whose key was spent.

src/server/turn.rs

@@ -783,17 +783,26 @@ pub(crate) async fn run_turn(
                 }
             };
 
-            match server
-                .consciousness
-                .mid_turn_peek(
+            // Race the peek against cancellation, same as the model call above.
+            // Without this a subconscious that never answers parks the whole
+            // turn past the reach of /cancel — measured 2026-08-15, twenty
+            // minutes on a provider whose key was spent.
+            let peek = tokio::select! {
+                biased;
+                _ = cancel.cancelled() => {
+                    interrupted = true;
+                    break;
+                }
+                res = server.consciousness.mid_turn_peek(
                     &agent_id,
                     &user_message,
                     tool_round,
                     in_flight_summary,
                     Some(tx),
-                )
-                .await
-            {
+                ) => res,
+            };
+
+            match peek {
                 Ok(outcome) => {
                     // Critical-urgency intrusive thoughts surface this turn
                     // — the primary feels them as surfacings in her own