feat: 管理端核心实体CRUD补齐

src/Application/TakeoutSaaS.Application/App/Merchants/Commands/UpdateMerchantCommand.cs

@@ -0,0 +1,51 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Merchants.Dto;
+using TakeoutSaaS.Domain.Merchants.Enums;
+
+namespace TakeoutSaaS.Application.App.Merchants.Commands;
+
+/// <summary>
+/// 更新商户命令。
+/// </summary>
+public sealed class UpdateMerchantCommand : IRequest<MerchantDto?>
+{
+    /// <summary>
+    /// 商户 ID。
+    /// </summary>
+    public long MerchantId { get; set; }
+
+    /// <summary>
+    /// 品牌名称。
+    /// </summary>
+    public string BrandName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 品牌简称。
+    /// </summary>
+    public string? BrandAlias { get; set; }
+
+    /// <summary>
+    /// Logo 地址。
+    /// </summary>
+    public string? LogoUrl { get; set; }
+
+    /// <summary>
+    /// 品类。
+    /// </summary>
+    public string? Category { get; set; }
+
+    /// <summary>
+    /// 联系电话。
+    /// </summary>
+    public string ContactPhone { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 联系邮箱。
+    /// </summary>
+    public string? ContactEmail { get; set; }
+
+    /// <summary>
+    /// 入驻状态。
+    /// </summary>
+    public MerchantStatus Status { get; set; }
+}