Grok OAuth 'test connection' reused the production GrokTokenProvider
request path, whose eligibility gate rejects any account that is not
currently schedulable (manual switch off, rate limited, overloaded,
temporarily cooled down). Every such test failed before reaching xAI
with the generic 'oauth refresh account state changed', while
Codex/OpenAI account tests read credentials regardless of scheduling
state (#4598).
Add GetAccessTokenForManualTest and use it from the account test
service:
- skips the request-path scheduling eligibility gate so admins can
probe excluded accounts; credential integrity checks (configured
proxy present, refresh token present) still apply
- refreshes expired tokens through the shared OAuthRefreshAPI without
the request-path marker, so the lock protocol and DB re-read keep
working while scheduling state no longer blocks the refresh;
credential rotation for non-active accounts stays blocked inside
RefreshIfNeeded
- falls back to the still-valid current token when a refresh attempt
fails or another worker holds the refresh lock, and otherwise
surfaces the concrete refresh error instead of the generic message
Fixes#4598
superman2003
4a97491be6