refactor(store): remove fallback config behavior and expose isConfigured

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

@@ -2,7 +2,6 @@ using MediatR;
 using TakeoutSaaS.Application.App.Stores;
 using TakeoutSaaS.Application.App.Stores.Dto;
 using TakeoutSaaS.Application.App.Stores.Queries;
-using TakeoutSaaS.Domain.Stores.Entities;
 using TakeoutSaaS.Domain.Stores.Repositories;
 using TakeoutSaaS.Shared.Abstractions.Constants;
 using TakeoutSaaS.Shared.Abstractions.Exceptions;
@@ -31,25 +30,7 @@ public sealed class GetStoreFeeQueryHandler(
 
         // 2. (空行后) 查询费用配置
         var fee = await storeRepository.GetStoreFeeAsync(request.StoreId, tenantId, cancellationToken);
-        if (fee is null)
-        {
-            var fallback = new StoreFee
-            {
-                StoreId = request.StoreId,
-                MinimumOrderAmount = 0m,
-                BaseDeliveryFee = 0m,
-                PackagingFeeMode = Domain.Stores.Enums.PackagingFeeMode.Fixed,
-                OrderPackagingFeeMode = Domain.Stores.Enums.OrderPackagingFeeMode.Fixed,
-                FixedPackagingFee = 0m,
-                CutleryFeeEnabled = false,
-                CutleryFeeAmount = 0m,
-                RushFeeEnabled = false,
-                RushFeeAmount = 0m
-            };
-            return StoreMapping.ToDto(fallback);
-        }
-
         // 3. (空行后) 返回结果
-        return StoreMapping.ToDto(fee);
+        return fee is null ? null : StoreMapping.ToDto(fee);
     }
 }

src/Application/TakeoutSaaS.Application/App/Stores/StoreListMapping.cs

@@ -101,29 +101,12 @@ public static class StoreListMapping
             result.Add(ServiceType.DineIn);
         }
 
-        // 2. 兜底默认展示配送服务
-        if (result.Count == 0)
-        {
-            result.Add(ServiceType.Delivery);
-        }
-
         return result;
     }
 
     private static string ResolveAddress(Store store)
     {
-        // 1. 地址优先返回业务地址字段
-        if (!string.IsNullOrWhiteSpace(store.Address))
-        {
-            return store.Address;
-        }
-
-        // 2. 兜底拼接省市区
-        var parts = new[] { store.Province, store.City, store.District }
-            .Where(static part => !string.IsNullOrWhiteSpace(part))
-            .ToArray();
-
-        return parts.Length == 0 ? string.Empty : string.Join(string.Empty, parts);
+        return string.IsNullOrWhiteSpace(store.Address) ? string.Empty : store.Address;
     }
 }