added watermark settings tab on the branding page and added more package details to the billing page, added a new guest notifications page

resources/js/admin/mobile/__tests__/guestMessages.test.ts

@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest';
+import { formatGuestMessageDate } from '../guestMessages';
+
+describe('guest messages helpers', () => {
+  it('returns placeholder for empty value', () => {
+    expect(formatGuestMessageDate(null, 'en-GB')).toBe('—');
+  });
+
+  it('passes through invalid dates', () => {
+    const value = 'not-a-date';
+    expect(formatGuestMessageDate(value, 'de-DE')).toBe(value);
+  });
+
+  it('formats valid ISO timestamps', () => {
+    const formatted = formatGuestMessageDate('2024-01-02T12:00:00Z', 'en-GB');
+    expect(formatted).not.toBe('—');
+    expect(formatted).not.toBe('2024-01-02T12:00:00Z');
+    expect(formatted).toContain('2024');
+  });
+});