chore: complete M1.1 runtime QA and release packaging

shop/xshop-theme/template-parts/components/section-heading.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * Section Heading — reusable for home sections.
+ *
+ * @package XShop
+ */
+
+declare(strict_types=1);
+
+defined('ABSPATH') || exit;
+
+$title = $args['title'] ?? '';
+if ($title === '') { return; }
+$linkLabel = $args['link_label'] ?? '';
+$linkUrl   = $args['link_url'] ?? '';
+$tag       = $args['tag'] ?? 'h2';
+$allowed   = ['h2','h3','div'];
+if (!in_array($tag, $allowed, true)) { $tag = 'h2'; }
+?>
+<div class="xshop-section__header">
+  <<?php echo esc_attr($tag); ?> class="xshop-section__title"><?php echo esc_html($title); ?></<?php echo esc_attr($tag); ?>>
+  <?php if ($linkLabel !== '' && $linkUrl !== ''): ?>
+    <a class="xshop-section__link" href="<?php echo esc_url($linkUrl); ?>"><?php echo esc_html($linkLabel); ?></a>
+  <?php endif; ?>
+</div>