redirect()->to(AdminArea::home()) resolved against whatever host the
leave() POST itself arrived on — the portal's, once the console has a
hostname of its own — landing the operator on the portal's dashboard
instead of back at the console. route('admin.overview') is domain-bound
to the console and generates the correct cross-host URL, matching what
this line did before this branch. The test named after this behaviour
now actually asserts it.
nexxo