chore: add documentation comments and stylecop rules

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

@@ -13,8 +13,11 @@ public sealed class DeleteTenantPackageCommandHandler(ITenantPackageRepository p
     /// <inheritdoc />
     public async Task<bool> Handle(DeleteTenantPackageCommand request, CancellationToken cancellationToken)
     {
+        // 1. 删除套餐
         await packageRepository.DeleteAsync(request.TenantPackageId, cancellationToken);
         await packageRepository.SaveChangesAsync(cancellationToken);
+
+        // 2. 返回执行结果
         return true;
     }
 }