new: send alert email when Paybox payment arrives on cancelled order

When a Paybox callback confirms payment on an order with status 4
(Annulé), the payment is still recorded but the order status is no
longer forced to « Préparation ». Instead, an alert email is sent to
``commande@jardinenvie.com`` warning that a refund is likely needed.

New ``AlertePaiementAnnule`` mailable with DB template providing order
ref, amount, customer info and payment reference. New method
``OrderMails::sendCancelledOrderPaymentAlert()`` handles the dispatch.

app/Repositories/Shop/OrderMails.php

@@ -3,9 +3,11 @@
 namespace App\Repositories\Shop;
 
 use App\Mail\Acheminement;
+use App\Mail\AlertePaiementAnnule;
 use App\Mail\ConfirmationCommande;
 use App\Mail\Preparation;
 use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\Log;
 
 class OrderMails
 {
@@ -37,4 +39,25 @@ class OrderMails
 
         return Mail::to($order->customer->email)->send($mail);
     }
+
+    public static function sendCancelledOrderPaymentAlert($orderId, $reference)
+    {
+        $order = Orders::get($orderId, ['customer']);
+
+        try {
+            Mail::to('commande@jardinenvie.com')
+                ->send(new AlertePaiementAnnule($order, $reference));
+            Log::info('Cancelled order payment alert sent', [
+                'order_id' => $orderId,
+                'order_ref' => $order->ref,
+                'reference' => $reference,
+            ]);
+        } catch (\Throwable $e) {
+            Log::error('Failed to send cancelled order payment alert', [
+                'order_id' => $orderId,
+                'order_ref' => $order->ref,
+                'exception' => $e->getMessage(),
+            ]);
+        }
+    }
 }