Clean up domain entities: shared picture value object, lifecycle and ownership interfaces, explicit tables

backend/Core/Musify.Domain/Entities/Track.cs

@@ -5,39 +5,31 @@ using Musify.Domain.ValueObjects;
 
 namespace Musify.Domain.Entities;
 
-#pragma warning disable CS8618
-public class Track : IAuditable
+[Table("Tracks")]
+public class Track : IAuditable, IHasLifeCycle, IOwnedEntity
 {
     [Key]
     public Guid Id { get; set; } = Guid.NewGuid();
 
-    [Required]
     [MaxLength(200)]
     public required string Title { get; set; }
 
-    [Required]
     [MaxLength(200)]
     public required string NormalizedTitle { get; set; }
 
-    [Required]
     public double DurationSeconds { get; set; }
 
-    [Required]
     public required long OwnerUserId { get; set; }
 
     [ForeignKey(nameof(OwnerUserId))]
-    public required User Owner { get; set; }
+    public User Owner { get; set; } = null!;
 
-    [Required]
     public LifeCycleStatus LifeCycleStatus { get; set; } = LifeCycleStatus.Active;
 
-    [Required]
     public bool IsExplicit { get; set; }
 
-    [Required]
     public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
 
-    [Required]
     public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
 
     public TrackPictures Pictures { get; set; } = new();