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/cms/static/admin/js/content-pages.js

@@ -21,6 +21,12 @@ function contentPagesManager() {
         loading: false,
         error: null,
 
+        // Modal state
+        showCreateHomepageConfirm: false,
+        pendingHomepagePlatform: null,
+        showDeletePageConfirm: false,
+        pageToDelete: null,
+
         // Tabs and filters
         activeTab: 'all',  // all, platform_marketing, store_defaults, store_overrides
         searchQuery: '',
@@ -188,13 +194,19 @@ function contentPagesManager() {
                 // Show a toast and offer to create
                 if (slug === 'home') {
                     // Offer to create homepage
-                    if (confirm(`No homepage found for ${platformCode}. Would you like to create one?`)) {
-                        window.location.href = `/admin/content-pages/create?platform_code=${platformCode}&slug=home&is_platform_page=true`;
-                    }
+                    this.pendingHomepagePlatform = platformCode;
+                    this.showCreateHomepageConfirm = true;
                 }
             }
         },
 
+        // Create homepage for a platform (called from confirm modal)
+        createHomepage() {
+            if (this.pendingHomepagePlatform) {
+                window.location.href = `/admin/content-pages/create?platform_code=${this.pendingHomepagePlatform}&slug=home&is_platform_page=true`;
+            }
+        },
+
         // Get page tier label (three-tier system)
         getPageTierLabel(page) {
             if (page.store_id) {
@@ -220,12 +232,14 @@ function contentPagesManager() {
             }
         },
 
+        // Prompt delete page confirmation
+        promptDeletePage(page) {
+            this.pageToDelete = page;
+            this.showDeletePageConfirm = true;
+        },
+
         // Delete a page
         async deletePage(page) {
-            if (!confirm(`Are you sure you want to delete "${page.title}"?`)) {
-                return;
-            }
-
             try {
                 contentPagesLog.info(`Deleting page: ${page.id}`);