Feature: Adding Checkout Services and Events

src/Checkout/Events/OrderPlaced.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Modules\Core\Checkout\Events;
+
+use Lunar\Models\Order;
+
+/**
+ * Dispatched by CheckoutService::placeOrder() the moment an Order exists —
+ * the handoff point between Checkout and Order (see docs/checkout.md's
+ * "Three-stage lifecycle"). Checkout has no opinion about what happens
+ * after this fires; Order's own listeners (not built yet — Order is a
+ * named-but-unscoped concern, same status Recovery had before it existed)
+ * would be what reacts to it — e.g. a confirmation email, initializing
+ * order status tracking.
+ */
+class OrderPlaced
+{
+    public function __construct(
+        public readonly Order $order,
+    ) {}
+}