chore: complete M1.1 runtime QA and release packaging

shop/xshop-theme/template-parts/components/search-form.php

@@ -0,0 +1,20 @@
+<?php
+/**
+ * Search form — accessible, RTL-safe.
+ *
+ * @package XShop
+ */
+
+declare(strict_types=1);
+
+defined('ABSPATH') || exit;
+
+$uid = 'xshop-search-' . wp_unique_id();
+$placeholder = $args['placeholder'] ?? esc_html__('Search…', 'xshop');
+$action = $args['action'] ?? home_url('/');
+?>
+<form role="search" method="get" action="<?php echo esc_url($action); ?>" class="xshop-search-form">
+  <label class="xshop-sr-only" for="<?php echo esc_attr($uid); ?>"><?php esc_html_e('Search', 'xshop'); ?></label>
+  <input type="search" id="<?php echo esc_attr($uid); ?>" name="s" value="<?php echo esc_attr(get_search_query()); ?>" placeholder="<?php echo esc_attr($placeholder); ?>" required />
+  <button type="submit" class="xshop-btn xshop-btn--primary"><?php esc_html_e('Search', 'xshop'); ?></button>
+</form>