fix(clerk-js): prevent infinite spinner on factor-two without active 2fa session

[nikosdouvlis]

Summary

Backport of #7774 to release/core-2.

Users navigating directly to /sign-in#/factor-two without an active sign-in requiring 2FA would see an infinite loading spinner. Added a useEffect to SignInFactorTwo that checks sign-in status on mount and redirects appropriately:

• If the user is already signed in (e.g. multi-session app like the dashboard, page reload after successful verification), redirects forward to afterSignInUrl
• If the user is not signed in and the status is invalid for 2FA, redirects back to sign-in start

This handles Fredrik's case where a hard reload after successful verification in the dashboard would leave users stuck on the factor-two spinner.

Test plan

• Navigate directly to /sign-in#/factor-two without an active 2FA session while signed out - should redirect to sign-in start
• Navigate directly to /sign-in#/factor-two while already signed in (multi-session app) - should redirect to afterSignInUrl
• Normal 2FA sign-in flow still works as expected

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Project	Deployment	Actions	Updated (UTC)
clerk-js-sandbox	Ready	Preview, Comment	Feb 6, 2026 11:10am

[changeset-bot]

🦋 Changeset detected

Latest commit: 58f4a39

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@clerk/clerk-js	Patch
@clerk/chrome-extension	Patch
@clerk/clerk-expo	Patch

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commit: 58f4a39