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/Mail/AlertePaiementAnnule.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Mail;
+
+use App\Models\Core\Mail\MailTemplate;
+use Illuminate\Bus\Queueable;
+use Illuminate\Mail\Mailables\Address;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+use Spatie\MailTemplates\TemplateMailable;
+
+class AlertePaiementAnnule extends TemplateMailable
+{
+    use Queueable, SerializesModels;
+
+    public $subject;
+
+    public $numero_commande;
+
+    public $date_commande;
+
+    public $montant;
+
+    public $client_nom;
+
+    public $client_email;
+
+    public $reference_paiement;
+
+    protected static $templateModelClass = MailTemplate::class;
+
+    public function __construct($order, $reference)
+    {
+        $this->numero_commande = $order->ref;
+        $this->date_commande = $order->created_at->format('d/m/Y H:i');
+        $this->montant = number_format($order->total_shipped, 2, ',', ' ').' €';
+        $this->client_nom = $order->customer
+            ? $order->customer->last_name.' '.$order->customer->first_name
+            : 'Client supprimé';
+        $this->client_email = $order->customer->email ?? 'inconnu';
+        $this->reference_paiement = $reference;
+    }
+
+    public function envelope()
+    {
+        return new Envelope(
+            from: new Address('boutique@jardinenvie.com', 'Jardin\'en\'Vie'),
+            subject: $this->subject,
+        );
+    }
+}