The MFA launcher called m.preflight() but the module only exposed pi.preflight,
so its catch-all reported a generic preflight failure before any key prompt.
Add preflight() and execute the launcher's own snippet in the tests.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Assistant: claude-code
Assistant-Model: sonnet
Assistant-Process: 328925@bnt-lap001
Assistant-Session: 14b795fd-c632-4c01-8d28-e7e490c7b0ed