OptionalconnectionAuth0 database connection name.
OptionalemailUser's email address.
OptionalfamilyUser's family (last) name.
OptionalgivenUser's given (first) name.
OptionalnameUser's full name, shown in the browser passkey dialog.
OptionalnicknameUser's nickname.
OptionalorganizationAuth0 organization ID.
OptionalphoneUser's phone number in E.164 format.
OptionalpictureURL of the user's profile picture.
OptionaluserAdditional user metadata.
OptionalusernameUsername for the new account.
Options for requesting a passkey signup challenge. Triggers Auth0 POST /passkey/register.