feat: While recording a QSO the count is clickable to start the recording again

internal/audio/recorder.go

@@ -239,6 +239,22 @@ func (r *Recorder) RestartQSO() {
 	r.active = true
 }
 
+// ResetQSOClock restarts the active accumulation from ZERO — discarding
+// everything captured so far INCLUDING the pre-roll. Unlike RestartQSO (which
+// re-seeds from the pre-roll ring), this keeps nothing: the saved file will
+// contain only audio from this moment onward. Used when the contact you entered
+// was already in a long QSO and you want to record just your own exchange.
+// No-op if not running; if no take is active it begins one (empty).
+func (r *Recorder) ResetQSOClock() {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	if !r.running {
+		return
+	}
+	r.acc = nil
+	r.active = true
+}
+
 // TakeQSO snapshots the accumulated recording as raw 16 kHz mono PCM bytes and
 // stops accumulating — fast, no encoding. The next BeginQSO can safely start a
 // new take immediately. Pair with WritePCM to encode/write off the hot path so