README: two human gates (clarifier + plan-decision), the approve/request-changes/
abandon verbs, free-text-defaults-to-request-changes, MAX_PLAN_GATE_VISITS, and
the planner max_turns reliability fix.
OPERATOR-RUNBOOK: how the gate appears in Slack, the three decision paths
(buttons/modal/free-text), the single-open-gate invariant, ceiling→PARKED, and
the 24h expiry→PARKED→recovery (re-assign / force-resume).
DEPLOY-R720: the pending_questions.kind ledger migration (SCHEMA_VERSION→4,
idempotent additive ALTER on startup) + rollback (restore the ledger backup
before restart if the migration fails).
P1c deploy artifacts: DEPLOY-R720.md (snapshot-first, rsync, venv deps, ~/secrev.env tokens incl. AGENT_TEAM_SLACK_OWNER_IDS, init-db, systemd, the 4-criteria live demo, rollback) and the long-running coordinator service unit.
