Add Ladill POS v1 — register, Pay checkout, and commerce links.

Staff-facing counter register at pos.ladill.com with catalog cart, cash and
MoMo/card checkout via Ladill Pay, CRM timeline/import, invoice prefill, and
Merchant catalog import.

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

app/Support/MobileTopbar.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Support;
+
+class MobileTopbar
+{
+    public static function resolve(): array
+    {
+        $appName = config('mobile-topbar.app_name', 'Ladill');
+
+        $title = $appName === 'Ladill'
+            ? 'Ladill'
+            : "Ladill {$appName}";
+
+        return [
+            'mobileTopbarTitle' => $title,
+        ];
+    }
+}