- Add IAM Identity Center (IDC) authentication with CLI flags (--kiro-idc-login, --kiro-idc-start-url, --kiro-idc-region) and login flow
- Add ProfileArn auto-fetching in Execute/ExecuteStream for imported IDC accounts
- Simplify endpoint preference with map-based alias lookup and getAuthValue helper
- Redesign fingerprint as global singleton with external config and per-account deterministic generation
- Add StartURL and FingerprintConfig fields to Kiro config
- Add AgentContinuationID/AgentTaskType support in Kiro translators
- Add comprehensive tests for executor, fingerprint, SSO OIDC, and AWS helpers
- Add CLI login documentation to README
Refactor 401 error handling in both executeWithRetry and
executeStreamWithRetry to always attempt token refresh regardless of
remaining retry attempts. Previously, token refresh was only attempted
when retries remained, which could leave valid refreshed tokens unused.
Also add auth directory resolution in RefreshManager.Initialize to
properly resolve the base directory path before creating the token
repository.