17543f04c3
Removing ConnexionScreen dropped its post-login navigate('/home'). Since the
identifier is now entered at the barrier (before the broker round-trip), on return
the app can load at '/' (WelcomeScreen) with a session already open. AuthGate now
redirects welcome→/home once connected AND identified (gate-disabled paths, i.e.
@e2e/@data harness, are exempt).
Update the @humain assisted-import e2e (the real staging flow, the coverage for
this page) to the new UX: the tester types an identifier then clicks « Entrer »
(one act), and lands directly on home — the 'choisir un nom d'utilisateur'
(ConnexionScreen) steps are removed. Step bindings verified; tsc + build green.
Doctrine: knowledge_multibrowser-harness.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>