Inserts a WachtOpDocumenten user task after OpenZaakAanmaken with an interrupting P30D boundary timer: "documents received" completes it and the process continues to the diploma routing; on timeout the RegistratieVerlopen external-worker task runs and the process ends as verlopen (ADR-0017). Verified live against flowable-rest: complete -> routes to Beoordelen; timer fire -> RegistratieVerlopen job (carrying registrationId) + the wait task cancelled. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>