chore: add jaad dependency to fix .m4a playback on Desktop

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Desktop: audio playback failed with *Failed to play audio* on every record,
+  because the JDK cannot decode the `.m4a` (AAC) recordings on its own.
+
 ## [1.0.0-alpha02] - 2026-08-04
 
 ### Added
@@ -64,7 +69,7 @@ First public release of **Chom Bev e Brezhoneg**.
 - Targets Android, iOS, Desktop (JVM) and Web (JS + Wasm), all sharing the same
   Compose Multiplatform UI. Only Android has been deeply tested for this version.
 - Audio playback backed by ExoPlayer (Android), AVFoundation (iOS), the browser
-  audio APIs (Web).
+  audio APIs (Web) and `javax.sound.sampled` (Desktop).
 - Light and dark themes; interface localised in French and Breton.
 - Modular architecture: `core`, `data` and `feature` modules glued by a thin
   `shared` module, with Koin dependency injection validated at build time.