Add the keyless Open-Meteo client (historical archive + geocoding) routed
through safeFetch, the per-day location-resolution + fetch/upsert service
(travel override wins over home, then degrades silently), and the shared
environmental-exposure field table the registry and correlation engine both
read. The base URL is operator-overridable for a self-hosted instance; the
fetch stays server-side so a private/LAN host is not blocked.