docs: 标记自提档期完成

src/Application/TakeoutSaaS.Application/App/Stores/Handlers/DeleteStorePickupSlotCommandHandler.cs

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+using MediatR;
+using Microsoft.Extensions.Logging;
+using TakeoutSaaS.Application.App.Stores.Commands;
+using TakeoutSaaS.Domain.Stores.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Stores.Handlers;
+
+/// <summary>
+/// 删除自提档期处理器。
+/// </summary>
+public sealed class DeleteStorePickupSlotCommandHandler(
+    IStoreRepository storeRepository,
+    ITenantProvider tenantProvider,
+    ILogger<DeleteStorePickupSlotCommandHandler> logger)
+    : IRequestHandler<DeleteStorePickupSlotCommand, bool>
+{
+    /// <inheritdoc />
+    public async Task<bool> Handle(DeleteStorePickupSlotCommand request, CancellationToken cancellationToken)
+    {
+        // 1. 删除档期
+        var tenantId = tenantProvider.GetCurrentTenantId();
+        await storeRepository.DeletePickupSlotAsync(request.SlotId, tenantId, cancellationToken);
+        await storeRepository.SaveChangesAsync(cancellationToken);
+        logger.LogInformation("删除自提档期 {SlotId}", request.SlotId);
+        return true;
+    }
+}