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

core/audioplayer/build.gradle.kts

@@ -13,6 +13,10 @@ kotlin {
             implementation(libs.media3.exoplayer)
             implementation(libs.media3.common)
         }
+        jvmMain.dependencies {
+            // Desktop audio: AAC/MP4 SPI so javax.sound.sampled can decode .m4a
+            implementation(libs.jaad)
+        }
         // webMain is the js + wasmJs intermediate source set from the default hierarchy template.
         webMain.dependencies {
             // Browser audio (HTMLAudioElement, document) for js + wasmJs