Gives ~5min grace period for heavy lifespan init (Redis, DB, executors, model loading).
Addresses 'up but not ready' state on data-service and dashboard (0/1 Ready).
Live manifests in apps/base/customer1/... updated (source of truth). Helm templates can be synced later.
See gke-hermes-infrastructure skill (trading-startup-probe-fix-2026-05-26.md).