DTOs for index mostly done, doing DB models

DCGEngine.Database/Models/CardEntry.cs

@@ -1,3 +1,5 @@
+using System.ComponentModel.DataAnnotations;
+
 namespace DCGEngine.Database.Models;
 
 /// <summary>
@@ -8,7 +10,8 @@ public abstract class CardEntry : BaseEntity<long>
     /// <summary>
     /// The name of this card used internally, to separate it from any localization key stored.
     /// </summary>
-    public virtual string InternalName { get; set; }
+    [Required(AllowEmptyStrings = false)]
+    public virtual string Name { get; set; } = string.Empty;
     
     /// <summary>
     /// The offensive power of this card.