When the access token expires and refreshToken() gets 429, getAccessToken()
returned the error but left credentials unchanged with no cooldown. Every
subsequent request re-attempted the refresh, creating a burst that overwhelmed
the token endpoint.
- refreshToken() now returns Retry-After duration from 429 response headers
(-1 when no header present, meaning permanently blocked)
- getAccessToken() caches the 429 and blocks further refresh attempts until
Retry-After expires (or permanently if no header)
- reloadCredentials() clears the block when new credentials are loaded from file
- Remove go pollUsage() on upstream errors (unrelated to usage state)
世界
608b7e7fa2