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/Support/helpers.php

@@ -0,0 +1,38 @@
+<?php
+
+use App\Models\User;
+
+if (! function_exists('ladill_account')) {
+    /**
+     * The account the current request acts within — the owner User. Defaults to
+     * the authenticated user; a team member who switched accounts gets the owner.
+     * Set by the SetActingAccount middleware.
+     */
+    function ladill_account(): ?User
+    {
+        $request = request();
+
+        return $request->attributes->get('actingAccount') ?? $request->user();
+    }
+}
+
+if (! function_exists('ladill_domains_url')) {
+    function ladill_domains_url(string $path = ''): string
+    {
+        return 'https://'.config('app.domains_domain').($path !== '' ? '/'.ltrim($path, '/') : '');
+    }
+}
+
+if (! function_exists('ladill_account_url')) {
+    function ladill_account_url(string $path = ''): string
+    {
+        return 'https://'.config('app.account_domain').($path !== '' ? '/'.ltrim($path, '/') : '');
+    }
+}
+
+if (! function_exists('ladill_servers_url')) {
+    function ladill_servers_url(string $path = ''): string
+    {
+        return 'https://'.config('app.servers_domain').($path !== '' ? '/'.ltrim($path, '/') : '');
+    }
+}