- App::cgiMode('fork') — Apache MPM-prefork-style CGI runner (fresh child per
  request, true global scope, no 'Cannot redeclare').
- Per-route CGI backend — the backend: route option + App::cgiBackendAlias().
- Patched-opcache Docker build (ZEALPHP_PATCH_OPCACHE) keeping opcache fully on
  in coroutine-legacy for require_once apps (php-src#22214 function-dups fix).
- WordPress media uploads + wp-admin/Gutenberg in the cgi-pool/cgi-proc modes.