メディア保存先を変更

function custom_upload_directory($uploads) {
    $custom_dir = WP_CONTENT_DIR . '/custom-uploads'; // 新しいディレクトリ（例: wp-content/custom-uploads）

    $uploads['path'] = $custom_dir;
    $uploads['url'] = content_url('custom-uploads');
    $uploads['subdir'] = '';
    
    return $uploads;
}
add_filter('upload_dir', 'custom_upload_directory');