Expose custom field scope (“Filter field values to”) in API

What is the challenge?

The GET /api/v1/custom_field_definitions endpoint does not return the “Filter field values to” scope setting (Account / Product Line / Workspace), even though this property is configurable in the UI.

There is currently no API endpoint that exposes this value.

What is the impact?

We programmatically manage and audit custom fields across our account. Without access to the scope setting via API, we cannot fully automate governance or validate configurations without manually checking the UI.

Describe your idea

Add a filter_to_scope (or equivalent) property to the custom_field_definitions API