AuthInitializer only checked for multica_token in localStorage. In
cookie auth mode (introduced by the HttpOnly cookie migration), there
is no localStorage token — so AuthInitializer immediately set the user
to null and triggered a logout redirect on every page load/reload.
Add a cookieAuth code path that calls api.getMe() using the HttpOnly
cookie sent automatically by the browser, matching the auth store's
initialize() logic.
Fixes MUL-705, fixes#864
8fb3bd322e