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/myaccount/form-add-payment-method.html.twig

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+{#
+ # Add Payment Method Form (Bootstrap 5 Override)
+ #
+ # Form to add a new payment method to the account.
+ #
+ # WooCommerce PHP equivalent: myaccount/form-add-payment-method.php
+ #
+ # @package WcBootstrap
+ # @since 0.1.0
+ #}
+
+{% set available_gateways = fn('WC').payment_gateways.get_available_payment_gateways() %}
+
+{% if available_gateways is not empty %}
+    <form id="add_payment_method" method="post">
+        <div id="payment" class="woocommerce-Payment">
+            <ul class="list-group mb-4">
+                {% for gateway in available_gateways %}
+                    <li class="list-group-item payment_method_{{ gateway.id|esc_attr }}">
+                        <div class="form-check">
+                            <input type="radio"
+                                   class="form-check-input input-radio"
+                                   id="payment_method_{{ gateway.id|esc_attr }}"
+                                   name="payment_method"
+                                   value="{{ gateway.id|esc_attr }}"
+                                   {% if gateway.chosen %}checked{% endif %} />
+                            <label class="form-check-label d-flex align-items-center gap-2"
+                                   for="payment_method_{{ gateway.id|esc_attr }}">
+                                <span>{{ gateway.get_title()|wp_kses_post }}</span>
+                                {{ gateway.get_icon()|raw }}
+                            </label>
+                        </div>
+
+                        {% if gateway.has_fields() or gateway.get_description() %}
+                            <div class="payment_box payment_method_{{ gateway.id|esc_attr }} mt-2 ps-4{% if not gateway.chosen|default(false) %} d-none{% endif %}">
+                                {% if gateway.get_description() %}
+                                    <p class="small text-body-secondary mb-2">{{ gateway.get_description()|wp_kses_post }}</p>
+                                {% endif %}
+                                {{ gateway.payment_fields() }}
+                            </div>
+                        {% endif %}
+                    </li>
+                {% endfor %}
+            </ul>
+
+            {{ do_action('woocommerce_add_payment_method_form_bottom') }}
+
+            <div class="mt-3">
+                {{ wp_nonce_field('woocommerce-add-payment-method', 'woocommerce-add-payment-method-nonce') }}
+                <button type="submit"
+                        class="btn btn-primary"
+                        id="place_order"
+                        value="{{ __('Add payment method') }}">
+                    <i class="bi bi-plus-lg me-1" aria-hidden="true"></i>
+                    {{ __('Add payment method') }}
+                </button>
+                <input type="hidden" name="woocommerce_add_payment_method" id="woocommerce_add_payment_method" value="1" />
+            </div>
+        </div>
+    </form>
+{% else %}
+    <div class="alert alert-info" role="alert">
+        <i class="bi bi-info-circle me-2" aria-hidden="true"></i>
+        {{ __('New payment methods can only be added during checkout. Please contact us if you require assistance.') }}
+    </div>
+{% endif %}