Implement Phase 9 & reusable components; skip Phase 8 (emails)

Phase 8 (Emails) skipped: WooCommerce email rendering uses
wc_get_template_html() which bypasses the Twig pipeline entirely.
Email customization deferred to plugins or block email editor.

Phase 9 - Supplementary (7 templates):
- Brand description with thumbnail, taxonomy archive delegate
- Brands A-Z shortcode with alphabetical index navigation
- Single brand thumbnail shortcode
- REST API OAuth login and grant-access forms
- Back-in-stock notification form with email input

Reusable Components (6 templates):
- price: product price display with sale handling
- rating: star rating with Bootstrap Icons (filled/half/empty)
- address-card: billing/shipping address card with edit link
- status-badge: contextual order status badges
- quantity-input: +/- input group widget
- form-field: universal form field renderer (text/select/textarea/checkbox)

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

templates/components/rating.html.twig

@@ -0,0 +1,37 @@
+{#
+ # Rating Component (Bootstrap 5)
+ #
+ # Reusable star rating display using Bootstrap Icons.
+ #
+ # Expected context:
+ #   rating       - Numeric rating (0-5)
+ #   review_count - Number of reviews (optional, for display)
+ #
+ # Usage:
+ #   {% include 'components/rating.html.twig' with { rating: 4.5, review_count: 12 } %}
+ #
+ # @package WcBootstrap
+ # @since 0.1.0
+ #}
+
+{% if rating is defined and rating > 0 %}
+    <div class="wc-star-rating d-inline-flex align-items-center gap-1"
+         role="img"
+         aria-label="{{ __('%s out of 5')|format(rating) }}">
+        {% for i in 1..5 %}
+            {% if rating >= i %}
+                <i class="bi bi-star-fill text-warning" aria-hidden="true"></i>
+            {% elseif rating >= (i - 0.5) %}
+                <i class="bi bi-star-half text-warning" aria-hidden="true"></i>
+            {% else %}
+                <i class="bi bi-star text-warning" aria-hidden="true"></i>
+            {% endif %}
+        {% endfor %}
+
+        {% if review_count is defined and review_count > 0 %}
+            <small class="text-body-secondary ms-1">
+                ({{ review_count }})
+            </small>
+        {% endif %}
+    </div>
+{% endif %}