feat(alarms): add native ringing service

lib/servicios/servicio_alarmas_android.dart

@@ -80,6 +80,10 @@ class ServicioAlarmasAndroid {
       'triggerAtMillis': proxima.millisecondsSinceEpoch,
       'preNoticeAtMillis':
           proxima.subtract(const Duration(minutes: 30)).millisecondsSinceEpoch,
+      'stationName': alarma.emisora?.nombre,
+      'stationUrl': alarma.emisora?.url,
+      'fallbackSound': alarma.sonidoInterno.name,
+      'volume': alarma.volumen,
     });
   }
 
@@ -89,6 +93,9 @@ class ServicioAlarmasAndroid {
   Future<void> ocultarNotificacionAlarma(String alarmaId) =>
       _logAndInvokeVoid('dismissAlarmNotification', {'id': alarmaId});
 
+  Future<void> detenerSonidoNativo(String alarmaId) =>
+      _logAndInvokeVoid('stopNativeAlarmSound', {'id': alarmaId});
+
   Future<DiagnosticoAlarmasAndroid> diagnostico() async {
     debugPrint('[PluriWave][alarmas] diagnostico android');
     final raw = await _channel.invokeMethod<Map<Object?, Object?>>(