feat(player): sleep timer and delayed start via long-press on play/pause (#270)

Add scheduled pause and resume timers in the player store, cleared on stop
and track changes. Long-press opens a compact preset modal anchored above
the transport row; one-tap presets plus custom minutes. Portaled countdown
badge on the play button; clear the long-press click guard when the modal
closes so the first play/pause click works after scheduling.

src/locales/es.ts

@@ -1119,6 +1119,24 @@ export const esTranslation = {
     prev: 'Pista Anterior',
     play: 'Reproducir',
     pause: 'Pausa',
+    delayModalTitle: 'Temporizador',
+    delayPauseSection: 'Pausar después de',
+    delayStartSection: 'Iniciar después de',
+    delaySchedulePause: 'Programar pausa',
+    delayScheduleStart: 'Programar inicio',
+    delayCancelPause: 'Cancelar temporizador de pausa',
+    delayCancelStart: 'Cancelar temporizador de inicio',
+    delayInactivePause: 'Solo disponible durante la reproducción.',
+    delayInactiveStart: 'Solo en pausa con pista o radio cargada.',
+    delayCustomMinutes: 'Retraso personalizado (minutos)',
+    delayCustomPlaceholder: 'p. ej. 2,5',
+    closeDelayModal: 'Cerrar',
+    delayIn: 'en',
+    delayFmtSec: '{{n}} s',
+    delayFmtMin: '{{n}} min',
+    delayFmtHr: '{{n}} h',
+    delayCancel: 'Cancelar',
+    delayApply: 'Aplicar',
     next: 'Pista Siguiente',
     repeat: 'Repetir',
     repeatOff: 'Apagado',