- Replace ApplyCodexCanonicalIdentity with CodexCanonicalAuthIdentity /
ApplyCodexCanonicalAuthIdentity: the credential face (auth.openai.com
token exchange / refresh / PAT whoami) now sends the originator +
canonical User-Agent pair and no version header, matching codex-rs
default_headers(); the version gate (#3901) only exists on the
/backend-api/codex inference face. whoami keeps its original header
shape (originator + UA) with the canonical UA source.
- Token exchange and refresh send the full pair instead of a bare UA,
eliminating the half-identity (UA without originator) combination no
real client ever emits.
- Codex models manifest: the Version header now follows the client's
own client_version when it is valid and >= the upstream floor (same
source as the query param, restoring the pre-refactor consistency),
falling back to the canonical version otherwise; the query param
keeps its verbatim passthrough contract.
- Drop the now-unreferenced openAICodexProbeVersion constant and its
vacuous consistency assertions; probes resolve their version through
resolveCodexOutboundIdentity at runtime.
Token exchange, PAT whoami, models, probes, and pre-writes now follow
the same UA/version chain as Codex inference instead of hardcoded
codex-cli/0.91.0 or compile-time constants.
yaxin