fix(android): LikeMediaCallback ReturnCount — extract toggle helper

detekt: onCustomCommand had 3 returns (unsupported / no-mediaItem /
success), ReturnCount cap is 2. Pull the toggle path into a private
launchToggleForCurrent helper so onCustomCommand is a single
return (if/else picks the result code, one Future wrap) and the
helper has at most 2 returns.

android/app/src/main/java/com/fabledsword/minstrel/player/LikeMediaCallback.kt

@@ -52,16 +52,22 @@ class LikeMediaCallback(
         customCommand: SessionCommand,
         args: Bundle,
     ): ListenableFuture<SessionResult> {
-        if (customCommand.customAction != CMD_TOGGLE_LIKE) {
-            return Futures.immediateFuture(SessionResult(SessionResult.RESULT_ERROR_NOT_SUPPORTED))
+        val code = if (customCommand.customAction == CMD_TOGGLE_LIKE) {
+            launchToggleForCurrent(session)
+        } else {
+            SessionResult.RESULT_ERROR_NOT_SUPPORTED
         }
+        return Futures.immediateFuture(SessionResult(code))
+    }
+
+    private fun launchToggleForCurrent(session: MediaSession): Int {
         val mediaId = session.player.currentMediaItem?.mediaId
-            ?: return Futures.immediateFuture(SessionResult(SessionResult.RESULT_INFO_SKIPPED))
+            ?: return SessionResult.RESULT_INFO_SKIPPED
         scope.launch {
             val current = likes.observeIsLiked(ENTITY_TRACK, mediaId).first()
             likes.toggleLike(ENTITY_TRACK, mediaId, !current)
         }
-        return Futures.immediateFuture(SessionResult(SessionResult.RESULT_SUCCESS))
+        return SessionResult.RESULT_SUCCESS
     }
 
     companion object {