fix: replace confirm() with proper delete confirmation modal

public/assets/js/admin-notifications.js

@@ -39,11 +39,27 @@ function sendNotification() {
     });
 }
 
-function confirmDelete(id, title) {
-    if (!confirm('Delete notification "' + title + '"? This action cannot be undone.')) return;
+let deleteId = null;
+
+function showDeleteModal(id, title) {
+    deleteId = id;
+    document.getElementById('deleteModalTitle').textContent = '"' + title + '"';
+    document.getElementById('deleteModal').style.display = 'flex';
+}
+
+function closeDeleteModal() {
+    deleteId = null;
+    document.getElementById('deleteModal').style.display = 'none';
+}
+
+function executeDelete() {
+    if (!deleteId) return;
+    const btn = document.getElementById('deleteConfirmBtn');
+    btn.disabled = true;
+    btn.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Deleting...';
 
     const csrf = document.querySelector('meta[name="csrf-token"]')?.content || '';
-    fetch('/admin/notifications/' + id + '/delete', {
+    fetch('/admin/notifications/' + deleteId + '/delete', {
         method: 'POST',
         headers: {
             'Content-Type': 'application/x-www-form-urlencoded',
@@ -54,9 +70,13 @@ function confirmDelete(id, title) {
     .then(r => r.json())
     .then(data => {
         showToast(data.success ? 'success' : 'error', data.message);
+        closeDeleteModal();
         if (data.success) location.reload();
     })
-    .catch(() => showToast('error', 'Failed to delete notification'));
+    .catch(() => {
+        showToast('error', 'Failed to delete notification');
+        closeDeleteModal();
+    });
 }
 
 function confirmResend(id) {