feat(电气bom): 导入数据时，如果类型为空，则设置为L

nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/DQBomImportService.java

@@ -379,6 +379,9 @@ public class DQBomImportService {
             dQbomExcelVO.setProjectType(BomConstant.PROJECT_TYPE_TEMPORARY);
         }
         dQbomExcelVO.setCurrentVersion("");
+        if (StrUtil.isBlank(dQbomExcelVO.getProjectType())) {
+            dQbomExcelVO.setProjectType("L");
+        }
 
         excelContextTL.get().add(dQbomExcelVO);
     }