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-details-item.html.twig

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+{#
+ # Order Details Item (Bootstrap 5 Override)
+ #
+ # Renders a single line item row within the order details table.
+ # HPOS compatible: uses WC_Order methods only.
+ #
+ # Expected context:
+ #   order              - WC_Order object
+ #   item_id            - Item ID
+ #   item               - WC_Order_Item_Product object
+ #   show_purchase_note - Whether to show purchase note
+ #   purchase_note      - Purchase note text
+ #   product            - WC_Product object or null
+ #
+ # WooCommerce PHP equivalent: order/order-details-item.php
+ #
+ # @package WcBootstrap
+ # @since 0.1.0
+ #}
+
+{% if not apply_filters('woocommerce_order_item_visible', true, item) %}
+    {% do return() %}
+{% endif %}
+
+{% set is_visible = product and product.is_visible() %}
+{% set product_permalink = apply_filters('woocommerce_order_item_permalink', is_visible ? product.get_permalink(item) : '', item, order) %}
+
+<tr class="{{ apply_filters('woocommerce_order_item_class', 'woocommerce-table__line-item order_item', item, order) }}">
+    <td class="product-name">
+        {% if product_permalink %}
+            <a href="{{ product_permalink|esc_url }}">{{ item.get_name()|esc_html }}</a>
+        {% else %}
+            {{ item.get_name()|esc_html }}
+        {% endif %}
+
+        {% set qty = item.get_quantity() %}
+        {% set refunded_qty = order.get_qty_refunded_for_item(item_id) %}
+
+        <strong class="product-quantity">
+            {% if refunded_qty %}
+                &times;&nbsp;<del>{{ qty }}</del> <ins>{{ qty - (refunded_qty * -1) }}</ins>
+            {% else %}
+                &times;&nbsp;{{ qty }}
+            {% endif %}
+        </strong>
+
+        {{ do_action('woocommerce_order_item_meta_start', item_id, item, order, false) }}
+        {{ wc_display_item_meta(item) }}
+        {{ do_action('woocommerce_order_item_meta_end', item_id, item, order, false) }}
+    </td>
+
+    <td class="product-total text-end">
+        {{ order.get_formatted_line_subtotal(item)|raw }}
+    </td>
+</tr>
+
+{% if show_purchase_note and purchase_note %}
+    <tr class="product-purchase-note">
+        <td colspan="2">
+            {{ purchase_note|wp_kses_post|wpautop }}
+        </td>
+    </tr>
+{% endif %}