WIP: corrections sérialisation API et script normalisation SQL

Backend:
- Fix Groups sur TypeMachine*Requirement: exposer typePiece/typeComposant/typeProduct
- Fix Groups sur Document, Piece, Product, Composant pour sérialisation
- Add addConstructeur/removeConstructeur sur Piece et Product

Scripts:
- Fix normalize-dump.py: gérer les schémas quotés ("public"."table")

Frontend (sous-module):
- Corrections formulaires et sérialisation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/EventSubscriber/UniqueConstraintSubscriber.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\EventSubscriber;
+
+use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpKernel\Event\ExceptionEvent;
+use Symfony\Component\HttpKernel\KernelEvents;
+
+final class UniqueConstraintSubscriber implements EventSubscriberInterface
+{
+    public static function getSubscribedEvents(): array
+    {
+        return [
+            KernelEvents::EXCEPTION => 'onKernelException',
+        ];
+    }
+
+    public function onKernelException(ExceptionEvent $event): void
+    {
+        $exception = $this->findUniqueConstraintViolation($event->getThrowable());
+
+        if (!$exception) {
+            return;
+        }
+
+        $event->setResponse(new JsonResponse(
+            [
+                'success' => false,
+                'error' => 'nom duplique',
+            ],
+            JsonResponse::HTTP_CONFLICT
+        ));
+    }
+
+    private function findUniqueConstraintViolation(\Throwable $throwable): ?UniqueConstraintViolationException
+    {
+        for ($current = $throwable; $current !== null; $current = $current->getPrevious()) {
+            if ($current instanceof UniqueConstraintViolationException) {
+                return $current;
+            }
+        }
+
+        return null;
+    }
+}