refactor: 适配 asset_wallet 更名，更新订单、充值和购买验证服务

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

internal/service/purchase_validation/service.go

@@ -173,3 +173,56 @@ func (s *Service) GetPurchasePrice(ctx context.Context, pkg *model.Package, buye
 	return pkg.SuggestedRetailPrice
 }
 
+// ValidateAdminOfflineCardPurchase 后台 offline 订单专用卡验证
+// 绕过代理 Allocation 上架检查，仅验证套餐全局状态
+func (s *Service) ValidateAdminOfflineCardPurchase(ctx context.Context, cardID uint, packageIDs []uint) (*PurchaseValidationResult, error) {
+	card, err := s.iotCardStore.GetByID(ctx, cardID)
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, errors.New(errors.CodeIotCardNotFound, "IoT卡不存在")
+		}
+		return nil, err
+	}
+
+	if card.SeriesID == nil || *card.SeriesID == 0 {
+		return nil, errors.New(errors.CodeInvalidParam, "该卡未关联套餐系列，无法购买套餐")
+	}
+
+	packages, totalPrice, err := s.validatePackages(ctx, packageIDs, *card.SeriesID, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	return &PurchaseValidationResult{
+		Card:       card,
+		Packages:   packages,
+		TotalPrice: totalPrice,
+	}, nil
+}
+
+// ValidateAdminOfflineDevicePurchase 后台 offline 订单专用设备验证
+// 绕过代理 Allocation 上架检查，仅验证套餐全局状态
+func (s *Service) ValidateAdminOfflineDevicePurchase(ctx context.Context, deviceID uint, packageIDs []uint) (*PurchaseValidationResult, error) {
+	device, err := s.deviceStore.GetByID(ctx, deviceID)
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, errors.New(errors.CodeNotFound, "设备不存在")
+		}
+		return nil, err
+	}
+
+	if device.SeriesID == nil || *device.SeriesID == 0 {
+		return nil, errors.New(errors.CodeInvalidParam, "该设备未关联套餐系列，无法购买套餐")
+	}
+
+	packages, totalPrice, err := s.validatePackages(ctx, packageIDs, *device.SeriesID, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	return &PurchaseValidationResult{
+		Device:     device,
+		Packages:   packages,
+		TotalPrice: totalPrice,
+	}, nil
+}