8c32a0540f
Adds a host-agnostic elway play + fleet driver that stand up an `infra-ops` system user (dedicated ed25519 key, NOPASSWD sudo with log_output audit, docker group) so the infra-ops agent completes DevOps work end-to-end instead of handing sudo steps back to the operator. Scoped to PFI-owned Linux boxes; tiered (compute/app/ sensitive-infra) with SureFire/corviduo/esh/Synology explicitly excluded. Validated live on irv-ml1.