-- Migration: 021_add_central_disaster_stream -- Seeds the CENTRAL_DISASTER JetStream stream row for central.disaster.> subjects. -- 7-day retention, 1 GiB max_bytes -- mirrors CENTRAL_FIRE / CENTRAL_QUAKE / CENTRAL_SPACE. -- Idempotent: uses ON CONFLICT DO NOTHING. INSERT INTO config.streams (name, max_age_s, max_bytes) VALUES ('CENTRAL_DISASTER', 604800, 1073741824) ON CONFLICT (name) DO NOTHING;