- Enterprise SAML/OIDC callbacks used raw 'sso_xxx' string as passwordHash
which would crash bcrypt.compare(). Now uses userRepo.hashPassword(randomUUID())
- Added updateLastLogin() for existing enterprise SSO users
- Upgraded bcrypt cost factor from 10 to 12 per PRD spec
- All 53 auth tests passing
- GET /auth/mfa/totp/secret — retrieve decrypted TOTP secret for auth app
- POST /auth/mfa/push/create, GET /pending, POST /:id/respond, GET /:id/status
- POST /auth/qr/create, POST /auth/qr/confirm, GET /auth/qr/:id/status
- Kotlin SDK: getTotpSecret, getPendingApprovals, respondToApproval, confirmQrLogin
- Swift SDK: getTotpSecret, getPendingApprovals, respondToApproval, confirmQrLogin
- All 53 auth tests passing