feat: 管理端核心实体CRUD补齐

src/Application/TakeoutSaaS.Application/App/Payments/Handlers/SearchPaymentsQueryHandler.cs

@@ -0,0 +1,46 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Payments.Dto;
+using TakeoutSaaS.Application.App.Payments.Queries;
+using TakeoutSaaS.Domain.Payments.Repositories;
+using TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+namespace TakeoutSaaS.Application.App.Payments.Handlers;
+
+/// <summary>
+/// 支付记录列表查询处理器。
+/// </summary>
+public sealed class SearchPaymentsQueryHandler(
+    IPaymentRepository paymentRepository,
+    ITenantProvider tenantProvider)
+    : IRequestHandler<SearchPaymentsQuery, IReadOnlyList<PaymentDto>>
+{
+    private readonly IPaymentRepository _paymentRepository = paymentRepository;
+    private readonly ITenantProvider _tenantProvider = tenantProvider;
+
+    /// <inheritdoc />
+    public async Task<IReadOnlyList<PaymentDto>> Handle(SearchPaymentsQuery request, CancellationToken cancellationToken)
+    {
+        var tenantId = _tenantProvider.GetCurrentTenantId();
+        var payments = await _paymentRepository.SearchAsync(tenantId, request.Status, cancellationToken);
+
+        if (request.OrderId.HasValue)
+        {
+            payments = payments.Where(x => x.OrderId == request.OrderId.Value).ToList();
+        }
+
+        return payments.Select(payment => new PaymentDto
+        {
+            Id = payment.Id,
+            TenantId = payment.TenantId,
+            OrderId = payment.OrderId,
+            Method = payment.Method,
+            Status = payment.Status,
+            Amount = payment.Amount,
+            TradeNo = payment.TradeNo,
+            ChannelTransactionId = payment.ChannelTransactionId,
+            PaidAt = payment.PaidAt,
+            Remark = payment.Remark,
+            Payload = payment.Payload
+        }).ToList();
+    }
+}