feat(users): govern profiles and access

Normalize fixed profile fields, profile actions, and the five-column capability matrix for comments, uploads, and downloads.

templates/pages/page-download.php

@@ -60,8 +60,7 @@ if ($is_logged_in) {
 }
 
 $currency_name = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_currency_name() : __('积分', 'aksrt');
-$paid_settings = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_paid_content_settings() : [];
-$dl_requires_login = !empty($paid_settings['download_login']);
+$dl_requires_login = function_exists('aksrt_user_can') && !aksrt_user_can('resource_download', get_current_user_id());
 ?>
 
 <main id="main-content" class="site-main container" tabindex="-1">