- New codex provider type using OpenAI-compatible protocol
- OAuth2 authentication via Device Authorization Grant flow
- Provider handler in aisbf/providers/codex.py
- OAuth2 handler in aisbf/auth/codex.py
- Dashboard integration with authentication UI
- Token refresh with automatic retry
- API key exchange from ID token
- Updated version to 0.9.8 in setup.py and pyproject.toml
- Updated CHANGELOG.md, README.md, PYPI.md with Codex documentation
- Added codex provider configuration to config/providers.json