Granular passkey methods on useAuth0().passkey throw "is not a function" #1302

Checklist

• The issue can be reproduced in the auth0-react sample app (or N/A).
• I have looked into the Readme, Examples, and FAQ and have not found a suitable solution or answer.
• I have looked into the API documentation and have not found a suitable solution or answer.
• I have searched the issues and have not found a suitable solution or answer.
• I have searched the Auth0 Community forums and have not found a suitable solution or answer.
• I agree to the terms within the Auth0 Code of Conduct.

Description

useAuth0().passkey is typed as PasskeyApiClient from @auth0/auth0-spa-js. Since spa-js 2.24.0, that type includes getSignupChallenge, getLoginChallenge and getTokenWithPasskey (auth0/auth0-spa-js#1678). Auth0Provider only puts signup, login and continueSignup on the passkey object it exposes. Calls to the granular methods compile but fail at runtime.

Reproduction

const { passkey } = useAuth0();
const { authSession, publicKey } = await passkey.getLoginChallenge();
// TypeError: passkey.getLoginChallenge is not a function

getTokenWithPasskey fails the same way, so you can't use the custom WebAuthn ceremony flow from spa-js through useAuth0.

Expected: the granular methods work through useAuth0().passkey, and getTokenWithPasskey updates isAuthenticated and user like passkey.login() does.

Additional context

The methods are missing from the object that Auth0Provider builds, so the failure doesn't depend on the browser.

auth0-react version

2.28.2 (main), with @auth0/auth0-spa-js 2.29.0

React version

19.3.1

Which browsers have you tested in?

Other (Jest with jsdom; the failure does not depend on the browser)