**Add playlist identifier to LoadPlaylistTask**

Introduced a new `playlistIdentifier` field in `LoadPlaylistTask` to enhance playlist tracking. Updated relevant method calls to include and utilize the identifier, ensuring more robust metadata management and consistency across the codebase.

src/main/java/me/bobert/netneutrality/music/TrackLoadingHandler.java

@@ -67,7 +67,7 @@ public class TrackLoadingHandler extends AbstractAudioLoadResultHandler {
     public void onPlaylistLoaded(PlaylistLoaded result) {
         logger.debug("Guild {}: playlist loaded: {}", guild.getId(), identifier);
 
-        new LoadPlaylistTask(result.getInfo().getName(), result.getTracks(), false, type, manager).insert(context);
+        new LoadPlaylistTask(identifier, result.getInfo().getName(), result.getTracks(), false, type, manager).insert(context);
     }
 
     /**
@@ -84,7 +84,7 @@ public class TrackLoadingHandler extends AbstractAudioLoadResultHandler {
             return;
         }
 
-        new LoadPlaylistTask("Search results", tracks, true, type, manager).insert(context);
+        new LoadPlaylistTask(identifier, "Search results", tracks, true, type, manager).insert(context);
     }
 
     @Override

src/main/java/me/bobert/netneutrality/tasks/music/LoadPlaylistTask.java

@@ -28,15 +28,17 @@ import java.util.List;
 
 public class LoadPlaylistTask extends ButtonTask implements WithChildren, Deletable {
     private final List<Task> childrens = new ArrayList<>();
+    private final String playlistIdentifier;
     private final String playlistName;
     private final List<Track> playlistTracks;
     private final boolean searchResult;
     private final SourceFinder.AudioSourceType sourceType;
     private final MusicManager musicManager;
 
-    public LoadPlaylistTask(String playlistName, List<Track> playlistTracks, boolean searchResult,
+    public LoadPlaylistTask(String playlistIdentifier, String playlistName, List<Track> playlistTracks, boolean searchResult,
                             SourceFinder.AudioSourceType sourceType, MusicManager musicManager) {
         super(musicManager.getTaskManager(), null, null);
+        this.playlistIdentifier = playlistIdentifier;
         this.playlistName = playlistName;
         this.playlistTracks = playlistTracks;
         this.searchResult = searchResult;
@@ -95,7 +97,7 @@ public class LoadPlaylistTask extends ButtonTask implements WithChildren, Deleta
         // Load playlist normally
         if (MusicUtils.connect(context, musicManager)) {
             musicManager.getQueueManager().queue(tracks, context.getGuildUser(),
-                new PlaylistInfo(null, playlistName, tracks.size()));
+                new PlaylistInfo(playlistIdentifier, playlistName, tracks.size()));
 
             context.edit(MessageFunction.buildAddingPlaylistMessage(tracks, playlistName, context.getGuildUser(), sourceType));
         }
@@ -106,7 +108,7 @@ public class LoadPlaylistTask extends ButtonTask implements WithChildren, Deleta
             Member member = context.getGuildUser();
 
             if (MusicUtils.connect(context, musicManager)) {
-                musicManager.getQueueManager().queue(tracks, member, new PlaylistInfo(null, playlistName, tracks.size()));
+                musicManager.getQueueManager().queue(tracks, member, new PlaylistInfo(playlistIdentifier, playlistName, tracks.size()));
                 context.reply(MessageFunction.buildAddingPlaylistMessage(tracks, playlistName, member, SourceFinder.AudioSourceType.Youtube));
 
                 return Lifecycle.REMOVE_SELF_AND_CHILDREN;