feat(audit): chain rolling cadence with auto-prune apply

docs/architecture/GATEWAY_SESSIONS_AND_QUEUE.md

@@ -38,6 +38,7 @@ If you only want the protocol surface, see `docs/api/PROTOCOL.md`.
 - `pnpm audit:phase0-baseline:live:drift` checks backend-scoped artifact freshness/drift gates and writes `phase0_baseline_live_backend_drift_<UTC-date>.md/.json`; `pnpm audit:phase0-baseline:live:refresh:drift` chains refresh + drift checks for scheduled cadence runs.
 - `pnpm audit:phase0-baseline:live:refresh:drift:rolling` performs the same chain using one UTC timestamp tag (`YYYY-MM-DD-HHMMSS`) across channel/gateway/backend/drift outputs so each cadence run preserves a distinct comparison point.
 - `pnpm audit:phase0-baseline:live:prune` (dry-run) and `pnpm audit:phase0-baseline:live:prune:apply` (delete) manage retention of rolling-tag artifacts to control artifact growth while preserving newest snapshots per family.
+- `pnpm audit:phase0-baseline:live:refresh:drift:rolling:prune` combines rolling refresh+drift with retention apply for one-command cron scheduling; adjust retention depth with `KEEP_PER_FAMILY`.
 - `audit:phase0-baseline:live*` package scripts now omit fixed tags so scheduled runs automatically roll to current UTC-date artifact tags.
 - Companion CLI supports one-shot shell bootstrap metadata for live sessions (`--app-version`/`--status-text`, `--latitude`/`--longitude`, `--push-token`) so desktop/mobile wrappers can initialize node status/location/push in a single launch flow.
 - Canvas artifacts are persisted per session under the gateway data directory for UI recovery across restarts.