Install timed out at 1800s: discourse's 15-25min Rails cold boot overran both the deploy timeout and
the recipe healthcheck start_period:5m (swarm killed the booting app). Add compose.ccci-health.yml
(app healthcheck start_period 1200s) via install_steps.sh + recipe_meta COMPOSE_FILE + CHAOS_BASE_DEPLOY,
bump DEPLOY_TIMEOUT/TIMEOUT to 2400. Image re-pin (bitnamilegacy) already proven working. NO test weakened.