fix: replace all native confirm() dialogs with styled modal macros

Migrated ~68 native browser confirm() calls across 74 files to use the
project's confirm_modal/confirm_modal_dynamic Jinja2 macros, providing
consistent styled confirmation dialogs instead of plain browser popups.

Modules updated: core, tenancy, cms, marketplace, messaging, billing,
customers, orders, cart. Uses danger/warning/info variants and
double-confirm pattern for destructive delete operations.

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

app/modules/customers/templates/customers/admin/customers.html

@@ -4,6 +4,7 @@
 {% from 'shared/macros/alerts.html' import loading_state, error_state %}
 {% from 'shared/macros/tables.html' import table_wrapper, table_header %}
 {% from 'shared/macros/pagination.html' import pagination %}
+{% from 'shared/macros/modals.html' import confirm_modal_dynamic %}
 
 {% block title %}Customers{% endblock %}
 
@@ -278,7 +279,7 @@
                         <td class="px-4 py-3">
                             <div class="flex items-center space-x-2 text-sm">
                                 <button
-                                    @click="toggleStatus(customer)"
+                                    @click="pendingToggleCustomer = customer; showToggleStatusConfirm = true"
                                     class="px-2 py-1 text-xs font-medium leading-5 rounded-lg"
                                     :class="customer.is_active
                                         ? 'text-red-600 hover:bg-red-100 dark:text-red-400 dark:hover:bg-red-700/50'
@@ -298,6 +299,9 @@
     <!-- Pagination -->
     {{ pagination() }}
 </div>
+
+<!-- Toggle Customer Status Confirm Modal -->
+{{ confirm_modal_dynamic('toggleStatusConfirm', 'Change Customer Status', "'Are you sure you want to ' + (pendingToggleCustomer?.is_active ? 'deactivate' : 'activate') + ' this customer?'", 'toggleStatus(pendingToggleCustomer)', 'showToggleStatusConfirm', 'Confirm', 'Cancel', 'warning') }}
 {% endblock %}
 
 {% block extra_scripts %}