Add Bootstrap 5 single product page layout

Add two-column responsive grid (image gallery + product summary) for
single product pages, following the same bridge pattern used for
product archives.

Key changes:
- Create content-single-product.php bridge and Twig layout template
- Add single product renderer at template_redirect priority 11
- Disable WooCommerce block compatibility layer that strips classic
  hooks when parent theme has theme.json
- Move PHP templates to woocommerce/ subfolder for cleaner structure
- Fix Twig templates to self-compute context data not passed by
  wc_get_template() (tabs, short-description, meta, rating)
- Fix Underscore.js triple-brace syntax conflict in variation template
  by wrapping in {% verbatim %}

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

woocommerce/archive-product.php

@@ -0,0 +1,104 @@
+<?php
+/**
+ * Product Archive / Shop Page (Bootstrap 5 Layout)
+ *
+ * Renders the WooCommerce product archive content with a Bootstrap 5 layout
+ * featuring a responsive sidebar (offcanvas on mobile) and product card grid.
+ *
+ * This file is NOT included directly by WordPress. Instead, it is captured via
+ * output buffering by wc_bootstrap_render_product_archive() and injected into
+ * the parent theme's page shell (pages/page.html.twig). Therefore it does NOT
+ * call get_header()/get_footer() or render the wrapper hooks.
+ *
+ * @package WcBootstrap
+ * @since 0.1.0
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+// Fire structured data hook (normally on woocommerce_before_main_content at priority 30).
+do_action( 'woocommerce_shop_loop_header' );
+
+$has_sidebar = is_active_sidebar( 'shop-sidebar' );
+
+if ( woocommerce_product_loop() ) {
+
+	/**
+	 * Hook: woocommerce_before_shop_loop.
+	 *
+	 * @hooked woocommerce_output_all_notices - 10
+	 * @hooked woocommerce_result_count - 20
+	 * @hooked woocommerce_catalog_ordering - 30
+	 */
+	do_action( 'woocommerce_before_shop_loop' );
+
+	?>
+	<div class="row g-4">
+		<?php if ( $has_sidebar ) : ?>
+			<aside class="col-lg-3 mb-4 mb-lg-0">
+				<button class="btn btn-outline-secondary w-100 d-lg-none mb-3"
+				        type="button"
+				        data-bs-toggle="offcanvas"
+				        data-bs-target="#shopSidebar"
+				        aria-controls="shopSidebar">
+					<i class="bi bi-funnel me-1" aria-hidden="true"></i>
+					<?php esc_html_e( 'Filters', 'wc-bootstrap' ); ?>
+				</button>
+
+				<div class="offcanvas-lg offcanvas-start"
+				     id="shopSidebar"
+				     tabindex="-1"
+				     aria-labelledby="shopSidebarLabel">
+					<div class="offcanvas-header d-lg-none">
+						<h5 class="offcanvas-title" id="shopSidebarLabel">
+							<?php esc_html_e( 'Filters', 'wc-bootstrap' ); ?>
+						</h5>
+						<button type="button" class="btn-close" data-bs-dismiss="offcanvas" aria-label="<?php esc_attr_e( 'Close', 'wc-bootstrap' ); ?>"></button>
+					</div>
+					<div class="offcanvas-body p-0">
+						<?php dynamic_sidebar( 'shop-sidebar' ); ?>
+					</div>
+				</div>
+			</aside>
+			<div class="col-lg-9">
+		<?php else : ?>
+			<div class="col-12">
+		<?php endif; ?>
+
+			<?php
+			woocommerce_product_loop_start();
+
+			if ( wc_get_loop_prop( 'total' ) ) {
+				while ( have_posts() ) {
+					the_post();
+
+					/**
+					 * Hook: woocommerce_shop_loop.
+					 */
+					do_action( 'woocommerce_shop_loop' );
+
+					wc_get_template_part( 'content', 'product' );
+				}
+			}
+
+			woocommerce_product_loop_end();
+
+			/**
+			 * Hook: woocommerce_after_shop_loop.
+			 *
+			 * @hooked woocommerce_pagination - 10
+			 */
+			do_action( 'woocommerce_after_shop_loop' );
+			?>
+		</div>
+	</div>
+	<?php
+
+} else {
+	/**
+	 * Hook: woocommerce_no_products_found.
+	 *
+	 * @hooked wc_no_products_found - 10
+	 */
+	do_action( 'woocommerce_no_products_found' );
+}