fix: 修复个人客户设备绑定查询使用已废弃的 device_no 列名

数据库列已重命名为 virtual_no，但 Store 层 3 处原始 SQL 仍使用旧列名 device_no，
导致小程序登录时查询客户资产绑定关系报 column device_no does not exist。

internal/store/postgres/personal_customer_device_store.go

@@ -44,7 +44,7 @@ func (s *PersonalCustomerDeviceStore) GetByCustomerID(ctx context.Context, custo
 func (s *PersonalCustomerDeviceStore) GetByDeviceNo(ctx context.Context, deviceNo string) ([]*model.PersonalCustomerDevice, error) {
 	var records []*model.PersonalCustomerDevice
 	if err := s.db.WithContext(ctx).
-		Where("device_no = ?", deviceNo).
+		Where("virtual_no = ?", deviceNo).
 		Order("last_used_at DESC").
 		Find(&records).Error; err != nil {
 		return nil, err
@@ -56,7 +56,7 @@ func (s *PersonalCustomerDeviceStore) GetByDeviceNo(ctx context.Context, deviceN
 func (s *PersonalCustomerDeviceStore) GetByCustomerAndDevice(ctx context.Context, customerID uint, deviceNo string) (*model.PersonalCustomerDevice, error) {
 	var record model.PersonalCustomerDevice
 	if err := s.db.WithContext(ctx).
-		Where("customer_id = ? AND device_no = ?", customerID, deviceNo).
+		Where("customer_id = ? AND virtual_no = ?", customerID, deviceNo).
 		First(&record).Error; err != nil {
 		return nil, err
 	}
@@ -89,7 +89,7 @@ func (s *PersonalCustomerDeviceStore) ExistsByCustomerAndDevice(ctx context.Cont
 	var count int64
 	if err := s.db.WithContext(ctx).
 		Model(&model.PersonalCustomerDevice{}).
-		Where("customer_id = ? AND device_no = ? AND status = ?", customerID, deviceNo, 1).
+		Where("customer_id = ? AND virtual_no = ? AND status = ?", customerID, deviceNo, 1).
 		Count(&count).Error; err != nil {
 		return false, err
 	}