Loading https://claude.ai as the start URL caused didFinish to fire on
the landing page while stale/tracking cookies were already in
WKWebsiteDataStore. The 'any claude.ai cookie' check then fired
immediately, closing the login sheet before the user could sign in.
Loading /login ensures the URL-guard catches the initial page load and
only checks cookies after the real post-login redirect.
superdooper86
SuperDooper
James Bone