fix: supprimer les ProductReserves avant annulation contrat acompte non reçu

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/Command/MailCommand.php

@@ -73,6 +73,9 @@ class MailCommand extends Command
                     foreach ($contrat->getContratsPayments() as $payment) {
                         $this->entityManager->remove($payment);
                     }
+                    foreach ($contrat->getProductReserves() as $productReserve) {
+                        $this->entityManager->remove($productReserve);
+                    }
                     $io->warning("Annulation du contrat N°" . $contrat->getNumReservation() . " (Acompte non payé après 3 jours)");
                     $this->entityManager->remove($contrat);
                 } else {