feat(alarmas): surface the three native scheduling failures in Dart

Completes the bridge the native side already exposed. AlarmScheduler and
PluriWaveAlarmService record a pre-notice that could not be armed, a
refused foreground-service start, and a per-alarm reschedule that failed
after a reboot -- but nothing read them, so all three still ended at
logcat.

EstadoAlarmas now drains them at startup and turns each into a per-alarm
exception, which the card already knows how to mark. An alarm that never
reached the OS stops looking identical to one that did.

The read is deliberately tolerant: a failure to read is logged and
swallowed, never surfaced as an alarm error, so a diagnostics gap cannot
masquerade as a scheduling problem.

test/servicios/servicio_alarmas_fallo_programacion_test.dart

@@ -124,11 +124,42 @@ void main() {
       ExcepcionAlarma.tipoFalloProgramacion,
     );
 
-    final config = await servicio.limpiarFalloProgramacion('a1');
+    final config = await servicio.limpiarFalloProgramacion(
+      'a1',
+      ExcepcionAlarma.tipoFalloProgramacion,
+    );
 
     expect(config.excepciones, isEmpty);
   });
 
+  test('limpiarFalloProgramacion NO limpia un fallo de un tipo distinto '
+      '(cada subsistema se limpia por su cuenta)', () async {
+    final servicio = ServicioAlarmas(reloj: () => DateTime(2026, 5, 25, 7));
+    await servicio.guardarAlarma(
+      AlarmaMusical(
+        id: 'a1',
+        nombre: 'Diaria',
+        hora: 7,
+        minuto: 30,
+        tipoProgramacion: TipoProgramacionAlarma.diaria,
+        diasSemana: const [],
+      ),
+    );
+    await servicio.registrarFalloProgramacion(
+      'a1',
+      DateTime(2026, 5, 25, 7, 30),
+      ExcepcionAlarma.tipoFalloPreaviso,
+    );
+
+    final config = await servicio.limpiarFalloProgramacion(
+      'a1',
+      ExcepcionAlarma.tipoFalloProgramacion,
+    );
+
+    expect(config.excepciones, hasLength(1));
+    expect(config.excepciones.single.tipo, ExcepcionAlarma.tipoFalloPreaviso);
+  });
+
   test('limpiarFalloProgramacion sin fallo previo no rompe y no persiste '
       'cambios', () async {
     final servicio = ServicioAlarmas(reloj: () => DateTime(2026, 5, 25, 7));
@@ -143,7 +174,10 @@ void main() {
       ),
     );
 
-    final config = await servicio.limpiarFalloProgramacion('a1');
+    final config = await servicio.limpiarFalloProgramacion(
+      'a1',
+      ExcepcionAlarma.tipoFalloProgramacion,
+    );
 
     expect(config.excepciones, isEmpty);
   });