Implement Phase 6 & 7: My Account and Order Details templates (Bootstrap 5, HPOS)

Phase 6 - My Account (15 templates):
- Account layout with sidebar navigation (list-group) and content area
- Orders table with status badges, pagination, and responsive design
- View order with order notes as list-group items
- Address cards with edit/add buttons
- Login/Register side-by-side card layout
- Account edit, password change, downloads, payment methods forms
- Lost/reset password forms and confirmation

Phase 7 - Order Details (5 templates):
- Order details table with items, totals, and customer note
- Line item rows with refund quantity display
- Customer billing/shipping address cards
- Order tracking form
- Order again button

All order templates use WC_Order object methods only (HPOS compatible).
Bootstrap 5 components: cards, tables, list-groups, badges, forms, alerts.

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

templates/order/order-again.html.twig

@@ -0,0 +1,20 @@
+{#
+ # Order Again Button (Bootstrap 5 Override)
+ #
+ # Renders a button to reorder a previous order.
+ #
+ # Expected context:
+ #   order_again_url - URL to reorder
+ #
+ # WooCommerce PHP equivalent: order/order-again.php
+ #
+ # @package WcBootstrap
+ # @since 0.1.0
+ #}
+
+<p class="order-again mt-3">
+    <a href="{{ order_again_url|esc_url }}" class="btn btn-outline-primary">
+        <i class="bi bi-arrow-repeat me-1" aria-hidden="true"></i>
+        {{ __('Order again') }}
+    </a>
+</p>