Allow keyboard interruption of i3 speech during terminal handoff

internal/app/speech_interrupt.go

@@ -60,6 +60,7 @@ func (worker *speechWorker) interruptLocked() {
 	if worker.beepCancel != nil {
 		worker.beepCancel()
 	}
+	worker.handoffSpeech = false
 	worker.titleInput.protectRepeats = false
 	worker.titleWindow = atspi.ObjectID{}
 	if worker.readAllCancel != nil {
@@ -102,6 +103,22 @@ func (worker *speechWorker) BeginReadAll(ctx context.Context, timestamp uint32)
 func (worker *speechWorker) InterruptForInput(event input.Event) bool {
 	worker.mutex.Lock()
 	defer worker.mutex.Unlock()
+	return worker.interrupt_for_input_locked(event)
+}
+
+// Terminal keystrokes normally belong entirely to its delegated reader. Only
+// explicitly admitted local desktop speech opens this cancellation path; the
+// backend still cancels Cthulhu's own clients, never the terminal reader's.
+func (worker *speechWorker) InterruptForHandoffInput(event input.Event) bool {
+	worker.mutex.Lock()
+	defer worker.mutex.Unlock()
+	if !worker.handoffSpeech {
+		return false
+	}
+	return worker.interrupt_for_input_locked(event)
+}
+
+func (worker *speechWorker) interrupt_for_input_locked(event input.Event) bool {
 	if event.Timestamp != 0 && worker.commandTimestamp != 0 && int32(event.Timestamp-worker.commandTimestamp) <= 0 {
 		return false
 	}