App login is working

src/Backend/DiunaBI.Domain/Entities/User.cs

@@ -8,7 +8,7 @@ public class User
     #region Properties
     public Guid Id { get; init; }
     public string? Email { get; init; }
-    public string? UserName { get; init; }
+    public string? UserName { get; set; }
     public DateTime CreatedAt { get; init; }
     #endregion
 }