DNS names are case-insensitive and Symfony's getHost() always returns lowercase,
so ADMIN_HOSTS=Admin.Example.com rejected every request and locked operators
out. Normalised in the config AND at the comparison, so the value is safe
whichever route it took in (env, cached config, runtime set).
operator()/admin() moved from RbacTest/HostManagementTest to tests/Pest.php:
they were only loaded when those files happened to be in the run, so a targeted
single-file run died on 'undefined function operator()'.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>