Add code snippet to backup Critical Table Data

[wendy-ha18]

Overview

This ServiceNow script automates backing up critical record data (such as task or incident records) to an external storage solution. It helps developers maintaining redundancy for sensitive information by copying specific record details to a backup API whenever a record is created or modified.

Folder structure

• Business Rules/Backup Critical Table Data/backupCriticalTableData.js
• Business Rules/Backup Critical Table Data/README.md

P/S: Similar with the PR #1580, I hope this script is suitable with Business Rules folder, otherwise please help to point me to appropriate folder for it.

Thanks a lot!!