Karan Dixit

Results 2 issues of Karan Dixit

Fixes #501 ### Description This pull request adds support for JSON.STRAPPEND command ![image](https://github.com/user-attachments/assets/f57f7c24-00aa-4349-8388-0d1eb99718bc)

This PR closes #1025 Here are things that are done - [x] Migrated the evalXXX function with the latest definition - [x] Update or add unit tests for the new...