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

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

@@ -0,0 +1,36 @@
+<?php
+/**
+ * User center credits: balance card + sign-in controls.
+ *
+ * Expects extracted $context vars.
+ *
+ * @package AKSRT
+ */
+
+defined('ABSPATH') || exit;
+
+$balance = (float) ($credit_balance ?? 0.0);
+$credits_enabled = !empty($credits_enabled);
+?>
+<div class="uc-balance-card">
+	<div class="uc-balance-card__bg"></div>
+	<div class="uc-balance-card__content">
+		<div class="uc-balance-card__header">
+			<span class="uc-balance-card__label"><?php esc_html_e('账户余额', 'aksrt'); ?></span>
+			<span class="uc-balance-card__currency"><?php echo esc_html($currency_name); ?></span>
+		</div>
+		<div class="uc-balance-card__amount">
+			<span class="uc-balance-card__value"><?php echo esc_html(aksrt_format_credits($balance)); ?></span>
+		</div>
+		<?php if ($credits_enabled) : ?>
+		<div class="uc-balance-card__actions" data-aksrt-signin>
+			<span class="uc-balance-card__sign-status" data-signin-status></span>
+			<button type="button" class="uc-balance-card__sign-btn" data-signin-btn disabled>
+				<i class="fas fa-calendar-check" aria-hidden="true"></i>
+				<span><?php esc_html_e('签到', 'aksrt'); ?></span>
+			</button>
+		</div>
+		<p class="uc-balance-card__tip" data-signin-tip></p>
+		<?php endif; ?>
+	</div>
+</div>