PantallaAlarmaSonando no longer owns any audio orchestration (fallback player, dB ramp, native handoff confirm, media-volume override/restore): it only calls EstadoAlarmas.finalizarEjecucion/posponerAlarma from Stop/Snooze/back, keeping the single-exit guard, PopScope back=Stop and dismiss semantics intact. The status line now reads directly from the alarm's static config (station name or a neutral label) instead of a live playback/handoff state. PuertoAlarmasAndroid drops confirmarAudioFlutter, forzarVolumenMediaParaAlarma and restaurarVolumenMedia, and app.dart no longer pre-starts a station before pushing the ring screen. This is the Dart half of moving to a single native ring-audio owner (WU1 of 2); the Kotlin service rebuild lands next and keeps this intermediate state shippable with no double audio.