AclService.OpenZaakAsync builds a ZaakRequest from the configured defaults
(bronorganisatie, verantwoordelijkeOrganisatie, vertrouwelijkheidaanduiding,
zaaktype) plus today's date from the clock, and delegates to the gateway.
OpenZaakGateway POSTs the zaak to /zaken/api/v1/zaken with a ZGW Bearer JWT
and the CRS headers, returning the created zaak URL. Tests pass (green).
Add a root register-referentie.slnx (bff + acl) and point `make ci` at it so
the gate covers every .NET service.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>