Chore: Updates to Notifications

src/Checkout/Services/CheckoutService.php

@@ -5,6 +5,7 @@ namespace Modules\Core\Checkout\Services;
 use Lunar\Exceptions\FingerprintMismatchException;
 use Lunar\Exceptions\Carts\CartException;
 use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\App;
 use Illuminate\Support\Facades\Event;
 use Lunar\Base\Addressable;
 use Lunar\DataTypes\ShippingOption;
@@ -431,6 +432,22 @@ class CheckoutService
             'terms_accepted' => true,
             'terms_accepted_at' => now()->toIso8601String(),
             'terms_accepted_policy_version' => $policyVersion,
+            // Order.locale doesn't exist as a column — saved here so every
+            // order notification (OrderPaymentResolutionService/
+            // MarkOrderPlacedOnDeferredPayment fire OrderPlaced synchronously
+            // in THIS request, but a later one — e.g. a Stripe 3-D Secure
+            // webhook, or a staff status change from Filament — has no
+            // request-scoped locale of its own) can render in the locale the
+            // shopper actually checked out in, not whatever locale (or none)
+            // happens to be active when the notification is sent. See
+            // NotificationRegistry::register(), which reads this back.
+            'locale' => App::getLocale(),
+            // Lunar copies the discount onto Order.discount_breakdown but not
+            // the coupon CODE itself — that stays on the cart row, which may
+            // since have been cleared/reused for a new cart. Copied here so
+            // the confirmation email always shows what code THIS order was
+            // actually placed with.
+            'coupon_code' => $cart->coupon_code,
         ];
         $order->save();