enrollTotp method
Initiates TOTP (authenticator app) enrollment.
Returns an EnrollmentChallenge containing the totpSecret and
totpUri for the authenticator app, along with id and authSession
needed to complete verification via verifyOtp.
Requires an access token with the create:me:authentication_methods
scope and audience https://{domain}/me/.
Usage example
final challenge = await myAccount.enrollTotp();
// Use challenge.totpUri to display a QR code
Implementation
Future<EnrollmentChallenge> enrollTotp() =>
Auth0FlutterWebPlatform.instance.enrollTotp(_accessToken);