feat(identity): close free-task progress, level card, hot threshold

Finish remaining 1:1 parity gaps: free-task done/progress DTO with
daily marks, user-center level/integral card UI, configurable forum
hot recommend threshold, and task progress bars.

inc/helpers/user-center-renderers/profile-credits.php

@@ -44,6 +44,9 @@ if (!empty($show_vip)) {
 if ($show_credits) {
 	require $dir . '/credits-signin.php';
 }
+if (class_exists('AKSRT_User_Level')) {
+	require $dir . '/credits-level.php';
+}
 
 // Tabbed ledgers (Zibll record tabs).
 if ($show_wallet || $show_credits) :