v1.42.0

New one relay platforms command — discover which platforms support webhook relay and how many event types each exposes, without having to guess-and-check with relay event-types <platform>.

$ one relay platforms
  Platform         Event types
  ───────────────  ───────────
  airtable         3
  attio            27
  stripe           224
  ...

$ one --agent relay platforms
{"platforms":[{"platform":"airtable","eventTypeCount":3}, ...]}

Also fixes a bug where sync always hit prod because OneApi was constructed without apiBase. #124