When Claude CLI credentials (anthropic:claude-cli) expire, automatically
refresh using the stored refresh token instead of failing with
"No credentials found" error.
Changes:
- Read refreshToken from Claude CLI and store as OAuth credential type
- Implement bidirectional sync: after refresh, write new tokens back to
Claude Code storage (file on Linux/Windows, Keychain on macOS)
- Prefer OAuth over Token credentials (enables auto-refresh capability)
- Maintain backward compatibility for credentials without refreshToken
This enables long-running agents to operate autonomously without manual
re-authentication when OAuth tokens expire.
Co-Authored-By: Claude <noreply@anthropic.com>