secret put/get/list/backfill over Vaultwarden via the bw CLI. Items land in the
infra-ops org's Default collection (visible to the operator's primary account via
org share), organised by folder + <host>/<stack>/<file> naming; text in the note,
binary base64'd into a hidden field; sha256 + source metadata fields; idempotent
upsert keyed by name. Auth bootstraps from ~/.config/secrets-broker/bootstrap.env
(0600, apikey login + master-password unlock, per-invocation session).
Verified live end-to-end (create/upsert/get-note/get-field/list). Contract updated:
bw replaces rbw (rbw register 400'd undebuggably despite valid creds).
Known limitation: bw-subprocess-per-op is ~3s/call → ~15-25s/command; too slow for
a fleet-scale backfill. Next: a bw serve broker (fast + central-cred fleet model).
