feat: 菜品菜单查询与子资源替换完善

src/Api/TakeoutSaaS.MiniApi/Controllers/MenusController.cs

@@ -0,0 +1,38 @@
+using System;
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using TakeoutSaaS.Application.App.Products.Dto;
+using TakeoutSaaS.Application.App.Products.Queries;
+using TakeoutSaaS.Shared.Abstractions.Results;
+using TakeoutSaaS.Shared.Web.Api;
+
+namespace TakeoutSaaS.MiniApi.Controllers;
+
+/// <summary>
+/// 小程序端菜单查询。
+/// </summary>
+[ApiVersion("1.0")]
+[Authorize]
+[Route("api/mini/v{version:apiVersion}/stores/{storeId:long}/menu")]
+public sealed class MenusController(IMediator mediator) : BaseApiController
+{
+    /// <summary>
+    /// 获取门店菜单（含分类与商品详情）。
+    /// </summary>
+    [HttpGet]
+    [ProducesResponseType(typeof(ApiResponse<StoreMenuDto>), StatusCodes.Status200OK)]
+    public async Task<ApiResponse<StoreMenuDto>> GetMenu(long storeId, [FromQuery] DateTime? updatedAfter, CancellationToken cancellationToken)
+    {
+        // 1. 组装查询
+        var query = new GetStoreMenuQuery
+        {
+            StoreId = storeId,
+            UpdatedAfter = updatedAfter
+        };
+        // 2. 拉取菜单
+        var result = await mediator.Send(query, cancellationToken);
+        return ApiResponse<StoreMenuDto>.Ok(result);
+    }
+}