v0.5.0

OpenAI's Decisions API, now in public beta for every developer, and a System One gateway of your
own as a first-class setup path. One change to check before upgrading: TYPESAFE_BASE_URL is now
validated, so a value carrying credentials, a query string, or a trailing /v1/systemone is
refused before any request instead of being sent.

Added

• A System One gateway of your own, documented as what it already was: the proxy case. The key
  goes in TYPESAFE_API_KEY, the SDK's generic variable, and the address in TYPESAFE_BASE_URL,
  with TYPESAFE_DEFAULT_MODEL when the gateway's model id differs; nothing new to configure in
  any harness. setup offers "Other System One gateway" when asking which host a pasted key is
  for, then asks for the URL and the model and stores the three variables together.
• OpenAI's Decisions API in its public beta, open to every developer since October 6, 2026.
  The mapping now follows OpenAI's published reference instead of recorded preview traffic; the
  request jev-code sent already matched it, so existing setups keep working unchanged. All five
  tools and the live test suite were run against gpt-6-luna before this release.
• A question the model declines comes back as a refusal on the Decisions API. Tools report it as
  status: "refused" with the cautious outcome (review, or uncertain in jev_check)
  instead of invalid_response, since retrying will not change it, and jev_ask lists declined
  ids under refused.
• CI runs the live tests against the Decisions API too when an OPENAI_API_KEY secret is set.

Changed

• TYPESAFE_BASE_URL is checked before any request: an absolute http(s) URL with no
  credentials, query, or fragment, stopping before /v1/systemone, which the client appends.
  A bad value is a configuration problem in doctor and setup, never echoed in case it embeds
  a secret, instead of a connection error at the first call.
• Score probabilities from the Decisions API are keyed by the level index the API returns,
  falling back to the label.
• doctor --live no longer calls a 403 from the Decisions API a preview restriction; it
  quotes OpenAI's message and points at the key's project access to gpt-6-luna.

Fixed

• npm run test:e2e found no tests to run, because the test config excluded the live suite for
  every run, so the CI live job could never have exercised a host. The suite is now excluded
  only when JEV_CODE_E2E is unset.