- split `init` into manual-key and interactive helpers
- document that access_valid checks persisted expiry, not the token
- rename single-letter local in redacted()
- cover 500 alongside 404 in supports_device_login metadata probe
- add config edge-case tests: stale apiKey drop, garbage/string
accessExpiresAt, empty-env-var popping, refresh-rotation fallback,
missing-token access_valid
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Reject zero/negative auth-method choices instead of letting Python
negative indexing wrap to the tail of the options list, and wrap httpx
transport failures in the OAuth POST helpers as OAuthFlowError so
connection errors surface through existing caller handling rather than
escaping as an uncaught traceback.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Aakash Kattelu