Preserve MediaSources metadata for local tracks in playlists to show bitrate

allstarr/Models/Domain/Song.cs

@@ -99,4 +99,10 @@ public class Song
     /// 0 = Naturally clean, 1 = Explicit, 2 = Not applicable, 3 = Clean/edited version, 6/7 = Unknown
     /// </summary>
     public int? ExplicitContentLyrics { get; set; }
+    
+    /// <summary>
+    /// Raw Jellyfin metadata (MediaSources, etc.) for local tracks
+    /// Preserved to maintain bitrate and other technical details
+    /// </summary>
+    public Dictionary<string, object?>? JellyfinMetadata { get; set; }
 }

allstarr/Services/Jellyfin/JellyfinModelMapper.cs

@@ -186,6 +186,14 @@ public class JellyfinModelMapper
 
         // Cover art URL construction
         song.CoverArtUrl = $"/Items/{id}/Images/Primary";
+        
+        // Preserve Jellyfin metadata (MediaSources, etc.) for local tracks
+        // This ensures bitrate and other technical details are maintained
+        song.JellyfinMetadata = new Dictionary<string, object?>();
+        if (item.TryGetProperty("MediaSources", out var mediaSources))
+        {
+            song.JellyfinMetadata["MediaSources"] = JsonSerializer.Deserialize<object>(mediaSources.GetRawText());
+        }
 
         return song;
     }

allstarr/Services/Jellyfin/JellyfinResponseBuilder.cs

@@ -323,6 +323,11 @@ public class JellyfinResponseBuilder
                 }
             };
         }
+        else if (song.IsLocal && song.JellyfinMetadata != null && song.JellyfinMetadata.ContainsKey("MediaSources"))
+        {
+            // Use preserved Jellyfin metadata for local tracks to maintain bitrate info
+            item["MediaSources"] = song.JellyfinMetadata["MediaSources"];
+        }
 
         if (!string.IsNullOrEmpty(song.Genre))
         {