Removes the full Nextcloud stack (PostgreSQL/CNPG, Valkey, Caddy sidecar)
and replaces it with oCIS at drive.tr1ceracop.de. oCIS is self-contained
(no external DB/cache needed) with S3ng storage backend on Hetzner Object
Storage (bucket: ocis-tr1ceracop). Chart sourced from git via vendir since
it is not published to a Helm repo.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
