Changes
PR #2229 by ksylvan: Show provider error details in Codex 401 responses
- Preserved Codex provider details in authentication errors, appending them after the localized login error message.
- Retained the underlying authentication errors so they can be inspected through unwrapping.
- Added regression test coverage for Codex 401 provider messages.
- Removed the unused
calculateFileHashmethod from the extension registry, along with itscrypto/sha256,encoding/hex, andioimports. - Removed the unused
VerifyandListExtensionsmethods from the extension registry.