v0.2.140

ChatGPT sign-in recovery

• Recover a missing ChatGPT credential from the provider's sign-in action without resetting existing provider or model settings.
• Allow explicit reauthentication even when a previous token still appears signed in locally.
• Offer a new device code after sign-in fails, and poll sequentially so slow requests do not overlap.
• Handle consumed or expired device-login state without crashing the request.
• Coordinate token refresh with new sign-ins and reuse an already refreshed token for concurrent automatic requests.
• Enforce background refresh job deduplication and coordinate credential creation across template application and sign-in recovery.
• Add frontend, API, expiry, concurrency, and recovery regression coverage.

This release does not change model prompts or system instructions. Reauthentication does not grant access to models unavailable to the ChatGPT account.