refactor: name worker event channels by role

crates/worker/tests/compact_events_test.rs

@@ -382,7 +382,7 @@ async fn compact_emits_session_start_carrying_summary_and_task_snapshot() {
     let mut worker = make_worker(client).await;
 
     let (tx, _rx_keep) = broadcast::channel::<Event>(64);
-    worker.attach_event_tx(tx);
+    worker.attach_working_event_tx(tx);
 
     worker.run_text("first").await.unwrap();
     let session_id = worker.session_id();
@@ -429,7 +429,7 @@ async fn pre_run_compact_success_broadcasts_start_and_done() {
     let mut worker = make_worker(client).await;
 
     let (tx, mut rx) = broadcast::channel::<Event>(64);
-    worker.attach_event_tx(tx);
+    worker.attach_working_event_tx(tx);
 
     worker.run_text("first").await.unwrap();
     // Drain run events so only compact events remain in `rx`.
@@ -539,7 +539,7 @@ async fn mid_turn_compact_success_broadcasts_start_and_done() {
     let mut worker = make_worker_with_manifest(MID_TURN_MANIFEST_TOML, client).await;
 
     let (tx, mut rx) = broadcast::channel::<Event>(64);
-    worker.attach_event_tx(tx);
+    worker.attach_working_event_tx(tx);
 
     // First run populates usage_history above the request threshold.
     worker.run_text("first").await.unwrap();
@@ -718,7 +718,7 @@ async fn pre_run_compact_failure_broadcasts_start_and_failed() {
     let mut worker = make_worker(client).await;
 
     let (tx, mut rx) = broadcast::channel::<Event>(64);
-    worker.attach_event_tx(tx);
+    worker.attach_working_event_tx(tx);
 
     worker.run_text("first").await.unwrap();
     let _ = drain(&mut rx);

crates/worker/tests/controller_test.rs

@@ -1515,7 +1515,7 @@ async fn notify_while_idle_auto_starts_turn_and_injects_system_message() {
     // after that.
     wait_for_status(&handle, WorkerStatus::Idle).await;
     // The live echo arrives via the sink's `Event::SystemItem` lane,
-    // not on the `event_tx` broadcast that `handle.subscribe()` taps.
+    // not on the `working_event_tx` broadcast that `handle.subscribe()` taps.
     // Verify the notification landed on the sink mirror instead.
     let (entries, _) = handle.sink.subscribe_with_snapshot();
     let saw_notify_in_mirror = entries.iter().any(|e| {
@@ -1899,7 +1899,7 @@ async fn socket_worker_event_turn_ended_while_idle_auto_starts_turn() {
 
     let deadline = tokio::time::Instant::now() + std::time::Duration::from_secs(2);
     // The SystemItem and TurnEnd events arrive through independent
-    // broadcast lanes (sink fan-out vs `event_tx`), so their relative
+    // broadcast lanes (sink fan-out vs `working_event_tx`), so their relative
     // order on the wire is non-deterministic. Keep reading until both
     // are observed (or the deadline trips), rather than breaking on
     // the first TurnEnd.