Deactivate a role by ID

Deactivates the role specified by its ID. The role remains queryable with status DEACTIVATED. Only roles whose entity_type is BUSINESS may be deactivated via this endpoint; account-group roles are rejected with 403 Forbidden. Deactivation is a terminal state; once deactivated, a role cannot be reactivated. Deactivation is idempotent: calling this endpoint on an already-deactivated role returns 202 Accepted without side effects. A ROLE.DEACTIVATED webhook event is emitted on the first successful deactivation.