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/brands/brand-description.html.twig

@@ -0,0 +1,29 @@
+{#
+ # Brand Description (Bootstrap 5 Override)
+ #
+ # Renders a brand's description with optional thumbnail.
+ #
+ # Expected context:
+ #   thumbnail - URL of brand thumbnail image (or empty)
+ #
+ # WooCommerce PHP equivalent: brands/brand-description.php
+ #
+ # @package WcBootstrap
+ # @since 0.1.0
+ #}
+
+{% set image_size = wc_get_image_size('shop_catalog') %}
+
+<div class="term-description brand-description d-flex gap-4 mb-4">
+    {% if thumbnail %}
+        <img src="{{ thumbnail|esc_url }}"
+             alt="{{ single_term_title('', false)|esc_attr }}"
+             class="rounded flex-shrink-0"
+             width="{{ image_size.width|esc_attr }}"
+             style="max-width: {{ image_size.width }}px; height: auto;" />
+    {% endif %}
+
+    <div class="text">
+        {{ term_description()|wptexturize|wpautop|do_shortcode }}
+    </div>
+</div>