Replace native confirm() dialogs with styled confirm modals.

Add shared confirm-dialog component, Alpine ladillConfirm store, and
swap browser confirms for consistent bottom-sheet modals across user,
admin, and hosting flows.

Co-authored-by: Cursor <cursoragent@cursor.com>

resources/js/app.js

@@ -1,5 +1,10 @@
 import './bootstrap';
 
+import { registerLadillConfirmStore, registerLadillModalHelpers } from './ladill-modals';
+
+registerLadillModalHelpers();
+
+
 import Alpine from 'alpinejs';
 import collapse from '@alpinejs/collapse';
 
@@ -547,4 +552,6 @@ window.serverOrderForm = (products = {}, billingCycleLabels = {}, initial = {})
 });
 
 window.Alpine = Alpine;
+registerLadillConfirmStore(Alpine);
+
 Alpine.start();