Add backup images for login and background removal

- Added loginerps.png.bak (1134 KB) as a backup for the login image.
- Added whithoutbackground.png.bak (3455 KB) as a backup for the image without background.

Backend/ERPCore/Dtos/Uoms/UomDtos.cs

@@ -1,11 +1,17 @@
 using System.ComponentModel.DataAnnotations;
+using ERPCore.Domain.Enums;
 
 namespace ERPCore.Dtos.Uoms;
 
 /// <summary>UOM resource (docs/11-BACKEND-PHASE1.md §2.2).</summary>
-public sealed record UomDto(int UomId, string Name);
+public sealed record UomDto(int UomId, string Name, EntityStatus Status, DateTime CreatedAt, DateTime? UpdatedAt);
 
 public sealed class CreateUomRequest
 {
     [Required, StringLength(50)] public string Name { get; set; } = string.Empty;
 }
+
+public sealed class UpdateUomStatusRequest
+{
+    [Required, EnumDataType(typeof(EntityStatus))] public EntityStatus Status { get; set; }
+}