FreeTLab
b17c582572
Dart half of bt-device-identity. EstadoEcualizador now caches each device's platform-reported name in memory so the settings screen shows the device's own Bluetooth name instead of its raw id when no custom rename exists, and skips auto-creating preset entries for the composite-placeholder sentinel. Enabling multi-device EQ triggers the Bluetooth permission request through the new channel contract. A flag-guarded one-time migration purges only entries keyed by the exact literal placeholder id from the three per-device preference maps, since those collided entries cannot be attributed to a device. Work unit 2/2 of bt-device-identity (Dart state + migration).