Scope corrected to per-dev-box (CC sessions on this box), not a fleet service; each
box duplicates the stack and backs up its own local secrets, hostname-namespaced.
CLI:
- backfill is local-only (scan this box's ~/development/*/{env.sh,.env} + ~/.config
credentials; exclude bootstrap.env/examples/AIPA-Data archives).
- large files (>6000 B) route to a bw ATTACHMENT instead of the note field
(Vaultwarden caps notes at ~10000 encrypted chars); get/verify read it back.
- backfill catches per-item failures and continues (bw errors raise BwError,
main converts to a clean exit); idempotent upsert makes re-runs safe.
Backfilled all 25 nh3-dev secret files into the infra-ops org's Default collection
(folder = hostname), every one round-trip verified (2 large via attachment, 23 via
note). README added for duplicating the stack to new dev boxes. Contract scope +
data-model sections updated (bw, org/collection, per-box).
