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/tenancy/static/admin/js/platform-modules.js

@@ -15,6 +15,8 @@ function adminPlatformModules(platformCode) {
         error: null,
         successMessage: null,
         saving: false,
+        showEnableAllModal: false,
+        showDisableOptionalModal: false,
 
         // Data
         platform: null,
@@ -176,10 +178,6 @@ function adminPlatformModules(platformCode) {
         },
 
         async enableAll() {
-            if (!confirm(I18n.t('tenancy.confirmations.enable_all_modules'))) {
-                return;
-            }
-
             this.saving = true;
             this.error = null;
             this.successMessage = null;
@@ -207,10 +205,6 @@ function adminPlatformModules(platformCode) {
         },
 
         async disableOptional() {
-            if (!confirm(I18n.t('tenancy.confirmations.disable_optional_modules'))) {
-                return;
-            }
-
             this.saving = true;
             this.error = null;
             this.successMessage = null;