Add test for non-string error.message fallback in handleCredentialsLogin. Rename misleading refreshSession test to match actual behavior. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add test for non-string error.message fallback in handleCredentialsLogin. Rename misleading refreshSession test to match actual behavior. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>