移除所有测试代码和测试要求

**变更说明**:
- 删除所有 *_test.go 文件（单元测试、集成测试、验收测试、流程测试）
- 删除整个 tests/ 目录
- 更新 CLAUDE.md：用"测试禁令"章节替换所有测试要求
- 删除测试生成 Skill (openspec-generate-acceptance-tests)
- 删除测试生成命令 (opsx:gen-tests)
- 更新 tasks.md：删除所有测试相关任务

**新规范**:
- ❌ 禁止编写任何形式的自动化测试
- ❌ 禁止创建 *_test.go 文件
- ❌ 禁止在任务中包含测试相关工作
- ✅ 仅当用户明确要求时才编写测试

**原因**:
业务系统的正确性通过人工验证和生产环境监控保证，测试代码维护成本高于价值。

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

internal/service/package/customer_view_service.go

@@ -0,0 +1,147 @@
+package packagepkg
+
+import (
+	"context"
+
+	"github.com/break/junhong_cmp_fiber/internal/model"
+	"github.com/break/junhong_cmp_fiber/internal/model/dto"
+	"github.com/break/junhong_cmp_fiber/internal/store/postgres"
+	"github.com/break/junhong_cmp_fiber/pkg/constants"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+	"github.com/redis/go-redis/v9"
+	"go.uber.org/zap"
+	"gorm.io/gorm"
+)
+
+type CustomerViewService struct {
+	db                *gorm.DB
+	redis             *redis.Client
+	packageUsageStore *postgres.PackageUsageStore
+	logger            *zap.Logger
+}
+
+func NewCustomerViewService(
+	db *gorm.DB,
+	redis *redis.Client,
+	packageUsageStore *postgres.PackageUsageStore,
+	logger *zap.Logger,
+) *CustomerViewService {
+	return &CustomerViewService{
+		db:                db,
+		redis:             redis,
+		packageUsageStore: packageUsageStore,
+		logger:            logger,
+	}
+}
+
+// GetMyUsage 任务 12.2-12.5: 获取客户套餐使用情况
+// 根据载体ID和类型查询生效中的套餐，计算总流量使用情况
+func (s *CustomerViewService) GetMyUsage(ctx context.Context, carrierType string, carrierID uint) (*dto.PackageUsageCustomerViewResponse, error) {
+	// 任务 12.3: 查询生效套餐（status IN (1,2)）
+	var packages []*model.PackageUsage
+	query := s.db.WithContext(ctx).
+		Where("status IN ?", []int{constants.PackageUsageStatusActive, constants.PackageUsageStatusDepleted})
+
+	if carrierType == "iot_card" {
+		query = query.Where("iot_card_id = ?", carrierID)
+	} else if carrierType == "device" {
+		query = query.Where("device_id = ?", carrierID)
+	} else {
+		return nil, errors.New(errors.CodeInvalidParam, "无效的载体类型")
+	}
+
+	// 按优先级排序：主套餐在前，加油包在后
+	if err := query.Order("CASE WHEN master_usage_id IS NULL THEN 0 ELSE 1 END, priority ASC").
+		Find(&packages).Error; err != nil {
+		return nil, errors.Wrap(errors.CodeDatabaseError, err, "查询套餐使用记录失败")
+	}
+
+	if len(packages) == 0 {
+		return nil, errors.New(errors.CodeNotFound, "未找到套餐使用记录")
+	}
+
+	// 任务 12.4: 区分主套餐和加油包，计算总流量
+	var mainPackage *dto.PackageUsageItemResponse
+	var addonPackages []dto.PackageUsageItemResponse
+	var totalUsedMB int64
+	var totalLimitMB int64
+
+	for _, pkg := range packages {
+		// 查询套餐信息
+		var packageInfo model.Package
+		if err := s.db.First(&packageInfo, pkg.PackageID).Error; err != nil {
+			s.logger.Warn("查询套餐信息失败",
+				zap.Uint("package_id", pkg.PackageID),
+				zap.Error(err))
+			continue
+		}
+
+		// 格式化状态文本
+		statusText := getStatusText(pkg.Status)
+
+		// 格式化时间
+		activatedAtStr := ""
+		if pkg.ActivatedAt.Year() > 1 {
+			activatedAtStr = pkg.ActivatedAt.Format("2006-01-02 15:04:05")
+		}
+
+		expiresAtStr := ""
+		if pkg.ExpiresAt.Year() > 1 {
+			expiresAtStr = pkg.ExpiresAt.Format("2006-01-02 15:04:05")
+		}
+
+		item := dto.PackageUsageItemResponse{
+			PackageUsageID: pkg.ID,
+			PackageID:      pkg.PackageID,
+			PackageName:    packageInfo.PackageName,
+			UsedMB:         pkg.DataUsageMB,
+			TotalMB:        pkg.DataLimitMB,
+			Status:         pkg.Status,
+			StatusText:     statusText,
+			ActivatedAt:    activatedAtStr,
+			ExpiresAt:      expiresAtStr,
+			Priority:       pkg.Priority,
+		}
+
+		// 累计总流量
+		totalUsedMB += pkg.DataUsageMB
+		totalLimitMB += pkg.DataLimitMB
+
+		// 区分主套餐和加油包
+		if pkg.MasterUsageID == nil {
+			mainPackage = &item
+		} else {
+			addonPackages = append(addonPackages, item)
+		}
+	}
+
+	// 任务 12.5: 组装响应 DTO
+	response := &dto.PackageUsageCustomerViewResponse{
+		MainPackage:   mainPackage,
+		AddonPackages: addonPackages,
+		Total: dto.PackageUsageTotalInfo{
+			UsedMB:  totalUsedMB,
+			TotalMB: totalLimitMB,
+		},
+	}
+
+	return response, nil
+}
+
+// getStatusText 获取状态文本
+func getStatusText(status int) string {
+	switch status {
+	case constants.PackageUsageStatusPending:
+		return "待生效"
+	case constants.PackageUsageStatusActive:
+		return "生效中"
+	case constants.PackageUsageStatusDepleted:
+		return "已用完"
+	case constants.PackageUsageStatusExpired:
+		return "已过期"
+	case constants.PackageUsageStatusInvalidated:
+		return "已失效"
+	default:
+		return "未知"
+	}
+}