API-only updates to job and opening custom fields

Job and Opening custom fields can now be set to be editable only through the developer API. For customers whose workflow uses external systems to update these specific custom fields, this ensures these field values can't be updated manually in Ashby.

Admins manage this setting directly on the custom field's settings page in Ashby by checking the Only allow this field to be set via API box. When a custom field has this box checked, its value is read-only in Ashby.

The API-only setting is also available when creating a job or opening custom field using the developer API. This setting is returned in responses for custom field endpoints.