S-10c needs a distinct cancellation status/resultaat. Adds a non-terminal Geannuleerd statustype (between Ontvangen and the Afgehandeld eindstatus) and a second Vervallen resultaattype, both idempotent by omschrijving. Both resultaattypen draw their selectielijstklasse from the zaaktype's single procestype so they validate on publish. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>