Extract Ladill QR Plus as standalone app at qr.ladill.com.

Utility QR types only (URL, WiFi, link list, business, app download) with
SSO, Billing API integration, public /q resolver, and qr-plus:import for
platform migration. vCard and commerce types stay on the platform.

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

app/Providers/AppServiceProvider.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Providers;
+
+use App\Models\QrCode;
+use App\Policies\QrCodePolicy;
+use Illuminate\Support\Facades\Gate;
+use Illuminate\Support\ServiceProvider;
+
+class AppServiceProvider extends ServiceProvider
+{
+    public function register(): void
+    {
+        //
+    }
+
+    public function boot(): void
+    {
+        Gate::policy(QrCode::class, QrCodePolicy::class);
+    }
+}