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- New dl role — nginx serves files publicly over HTTPS with directory listing; atmoz/sftp on port 2223 for key-only uploads; both containers share /opt/dl/files volume - check-vault.sh gains a third tier: optional secrets are validated when present — vaultwarden_sso_client_secret must be non-empty, dl_sftp_authorized_keys must begin with a recognised SSH public key prefix - dl.ladkau.de added to DNS table, check-services.sh, and status dashboard - Configuration runbook section 7: deploy key generation, Gitea Actions scp workflow example, and SFTP client connection settings - Provisioning runbook documents the three-tier vault validation behaviour