Push paid menu orders to the Ladill POS kitchen

When a menu (food) storefront order is paid, best-effort POST it to the
merchant's Ladill POS kitchen ingest (config/kitchen.php → KITCHEN_API_URL/KEY)
so it lands on their Kitchen Display alongside dine-in tabs. Failures are logged,
never surfaced — order completion is unaffected; POS ignores orders for accounts
that don't run a POS kitchen.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

config/kitchen.php

@@ -0,0 +1,8 @@
+<?php
+
+return [
+    // Ladill POS kitchen ingest — paid food-storefront orders are pushed here so
+    // they appear on the merchant's POS Kitchen Display. Empty = disabled.
+    'url' => rtrim((string) env('KITCHEN_API_URL', ''), '/'),
+    'key' => env('KITCHEN_API_KEY'),
+];