Fix: Correct shipment resolving

src/Shipping/Contracts/SupportsCashCollection.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Modules\Core\Shipping\Contracts;
+
+/**
+ * A shipping rate driver implements this to say a person is physically
+ * present at handoff to collect cash — true for a courier like
+ * Modules\Core\Shipping\Carriers\Acs\AcsRateDriver, false for an
+ * unattended parcel locker network like Modules\Core\Shipping\Carriers\
+ * BoxNow\BoxNowRateDriver, where no one is there to take payment. Checked
+ * by Modules\Core\Checkout\Services\CheckoutService::getPaymentMethods()
+ * for cash-on-delivery specifically (Modules\Core\Payment\Drivers\
+ * CashOnDeliveryPaymentDriver) — separate from Modules\Core\Shipping\
+ * Contracts\DeclaresFulfillmentType, which only distinguishes carrier vs.
+ * store_pickup and can't tell ACS and Box Now apart (both 'carrier').
+ *
+ * Not implemented at all means "no" — a driver with no opinion here
+ * (any of table-rate-shipping's own generic drivers, if one were ever
+ * re-added) is treated as not supporting cash collection, the safer
+ * default for a driver this module knows nothing about.
+ */
+interface SupportsCashCollection
+{
+    public function collectsCash(): bool;
+}