ApplicationBuilder::withMiddleware() defaults redirectGuestsTo() to
fn () => route('login') before bootstrap/app.php's own callback ever
runs — always the portal's Fortify page, regardless of which side of
the site turned the guest away. In non-exclusive (shared, this VM's
own mode) that sends a guest bounced off /admin to a sign-in form whose
table holds no operators: no 404 any more, but a sign-in that can never
succeed. Exclusive mode happened to self-correct only because
RestrictAdminHost 404s the wrong host before this ever ran.
Fixed for both modes at once rather than depending on which one a given
deployment runs: ask AdminArea, the one place routes/web.php's own
registration and RestrictAdminHost already agree is the source of truth
for "is this the console".
5e22e16291