How to add read only date field when select the Pending leader evidence” option in Status field

Summary:

Requirement is, We need to Add a new field in “Job Summary” section to populate the effective date as today's date when the “Pending leader evidence” option in “Status” field is selected which no one can change later on

Content (please ensure you mask any confidential information):

Expectations are date should come default today's date when we select the Pending Leader Evidence option from status field and no one can change that date later on

Version (include the version you are using, if applicable):

25C

Code Snippet (add any code snippets that support your topic, if applicable):