Add project files.

ConstructorApp.EntityLayer/Entities/AppUser.cs

@@ -0,0 +1,18 @@
+using Microsoft.AspNetCore.Identity;
+using System.ComponentModel.DataAnnotations;
+
+namespace ConstructorApp.EntityLayer.Entities
+{
+    public class AppUser : IdentityUser<int>
+    {
+        [StringLength(50)]
+        public string? FirstName { get; set; }
+        [StringLength(50)]
+        public string? LastName { get; set; }
+        [StringLength(100)]
+        public string? ImageUrl { get; set; } // Zorunlu olmayan alan
+        public int ConfirmCode { get; set; }
+
+    }
+}
+