Added relation support

testing/HopFrame.Testing/Models/Post.cs

@@ -4,7 +4,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 namespace HopFrame.Testing.Models;
 
 public class Post {
-    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+    [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
     public int Id { get; set; }
     
     [MaxLength(255)]

testing/HopFrame.Testing/Models/User.cs

@@ -1,6 +1,9 @@
-namespace HopFrame.Testing.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace HopFrame.Testing.Models;
 
 public class User {
+    [Key]
     public required Guid Id { get; init; }
     public required string Email { get; init; }
     public string? Username { get; set; }