用户中心 credits/settings 渲染器整包拆分：编排器 + 子块

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

@@ -0,0 +1,43 @@
+<?php
+/**
+ * User center credits: sign-in captcha + recent calendar.
+ *
+ * Expects extracted $context vars.
+ *
+ * @package AKSRT
+ */
+
+defined('ABSPATH') || exit;
+
+$credits_enabled = !empty($credits_enabled);
+if (!$credits_enabled) {
+	return;
+}
+
+if (function_exists('aksrt_is_captcha_enabled_for') && aksrt_is_captcha_enabled_for('signin')) :
+	?>
+	<div class="aksrt-signin-captcha" data-signin-captcha style="margin-bottom:16px;">
+		<?php aksrt_render_captcha('signin'); ?>
+	</div>
+	<?php
+endif;
+
+$signin_dates = [];
+if (class_exists('AKSRT_Signin')) {
+	$signin_log = AKSRT_Signin::get_instance()->get_recent_signins($user_id, 30);
+	$signin_dates = array_filter(array_map(static function ($entry) {
+		return $entry['signin_date'] ?? '';
+	}, $signin_log));
+}
+
+if (empty($signin_dates)) {
+	return;
+}
+?>
+<div class="uc-signin-calendar" style="margin-bottom:16px;">
+	<h4 class="uc-signin-calendar__title">
+		<i class="fas fa-calendar-alt" aria-hidden="true"></i>
+		<?php esc_html_e('最近 30 天签到', 'aksrt'); ?>
+	</h4>
+	<div data-aksrt-signin-calendar='<?php echo esc_attr(wp_json_encode(array_values($signin_dates))); ?>'></div>
+</div>