Changes

backend/Musify.Domain/Entities/ExternalAlbum.cs

@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+using Musify.Domain.ValueObjects;
+
+namespace Musify.Domain.Entities
+{
+    public class ExternalAlbum : Album
+    {
+        [Required]
+        public required TrackSource Source { get; set; }
+
+        [Required]
+        [MaxLength(64)]
+        public required string ExternalId { get; set; }
+
+        [MaxLength(512)]
+        public string? ThumbnailUrl { get; set; }
+    }
+}

backend/Musify.Domain/Entities/UserAlbum.cs

@@ -9,7 +9,7 @@ namespace Musify.Domain.Entities
         [Required]
         public required long OwnerUserId { get; set; }
 
-        [ForeignKey(nameof(OwnerUserId))]
+        [ForeignKey(nameof(OwnerUserId)) ]
         public User Owner { get; set; }
     }
 }