feat: 套餐管理与配额校验能力

src/Application/TakeoutSaaS.Application/App/Tenants/Handlers/DeleteTenantPackageCommandHandler.cs

@@ -0,0 +1,20 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Tenants.Commands;
+using TakeoutSaaS.Domain.Tenants.Repositories;
+
+namespace TakeoutSaaS.Application.App.Tenants.Handlers;
+
+/// <summary>
+/// 删除租户套餐处理器。
+/// </summary>
+public sealed class DeleteTenantPackageCommandHandler(ITenantPackageRepository packageRepository)
+    : IRequestHandler<DeleteTenantPackageCommand, bool>
+{
+    /// <inheritdoc />
+    public async Task<bool> Handle(DeleteTenantPackageCommand request, CancellationToken cancellationToken)
+    {
+        await packageRepository.DeleteAsync(request.TenantPackageId, cancellationToken);
+        await packageRepository.SaveChangesAsync(cancellationToken);
+        return true;
+    }
+}