Enatega Admin Dashboard: When adding a new staff and Rider , phone number is added by taking just one digit number

Describe the bug
When attempting to add a new staff member, the phone number input only captures and saves the first digit entered. Also displaying a error message that number is already associated with another account.
Fix it on its update page also
Steps to Reproduce:

Navigate to the "Add New Staff" page.
Fill out all required fields.
Now if user fills the phone number by adding only just one number it accepts it as a full number.
Click on "Save" or "Submit."
Expected behavior
The full phone number (e.g., "1234567890") should be saved and displayed correctly.

Screenshots

Staff.PN.video-converter.com.mp4
Desktop (please complete the following information):

OS: [e.g. Windows]
Browser [e.g. chrome, ]
Version [e.g. Latest]

Start by reproducing the issue on the Add New Staff page and inspect the phone-number input and save behavior. Trace the corresponding update page as well, then verify that complete phone numbers are saved and displayed correctly, while a single digit is not accepted as a full number or incorrectly reported as already associated.

Written by the indexing model from the issue text.