Lots of data and model setup

DCGEngine.Database/Models/DeckEntry.cs

@@ -1,11 +1,13 @@
 using System.ComponentModel.DataAnnotations;
+using DCGEngine.Database.Interfaces;
+using Microsoft.EntityFrameworkCore;
 
 namespace DCGEngine.Database.Models;
 
 /// <summary>
 /// A deck consisting of multiple <see cref="CardEntry"/> stored in the DB.
 /// </summary>
-public abstract class DeckEntry : BaseEntity<long>
+public abstract class DeckEntry : BaseEntity<Guid>
 {
     /// <summary>
     /// How this deck is referred to internally.