szepeviktor/phpstan-wordpress, wp-coding-standards/wpcs, and dealerdirect/phpcodesniffer-composer-installer are already declared in composer.json require-dev. The extra 'composer require' steps after 'composer install' caused a second packagist.org network hit that timed out in CI, failing the PHPStan Static Analysis job. Fixes the Code Quality CI failure on PR #51 (issue #45).