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/Http/Controllers/WellKnown/AssetLinksController.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Http\Controllers\WellKnown;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\JsonResponse;
+
+class AssetLinksController extends Controller
+{
+    public function __invoke(): JsonResponse
+    {
+        $fingerprints = config('android_app_links.sha256_cert_fingerprints', []);
+
+        abort_if($fingerprints === [], 404);
+
+        return response()->json([
+            [
+                'relation' => ['delegate_permission/common.handle_all_urls'],
+                'target' => [
+                    'namespace' => 'android_app',
+                    'package_name' => config('android_app_links.package_name'),
+                    'sha256_cert_fingerprints' => $fingerprints,
+                ],
+            ],
+        ], 200, [], JSON_UNESCAPED_SLASHES);
+    }
+}