Add WorkflowDocumentService and use in StoredObject voters

A WorkflowDocumentService was created that can be injected\
in context-specific StoredObject voters that need to check whether\
the document in question is attached to a workflow.

src/Bundle/ChillDocStoreBundle/Service/WorkflowDocumentService.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Chill\DocStoreBundle\Service;
+
+use Chill\MainBundle\Entity\Workflow\EntityWorkflow;
+use Chill\MainBundle\Repository\Workflow\EntityWorkflowRepository;
+use Symfony\Component\Security\Core\Security;
+
+class WorkflowDocumentService
+{
+
+    public function __construct(private readonly Security $security, private readonly EntityWorkflowRepository $repository)
+    {
+    }
+
+    public function getRelatedWorkflow($entity): ?EntityWorkflow
+    {
+        return $this->repository->findByRelatedEntity(get_class($entity), $entity->getId());
+    }
+
+    public function canApplyTransition(EntityWorkflow $entityWorkflow): bool
+    {
+        if ($entityWorkflow->isFinal()) {
+            return false;
+        }
+
+        $currentUser = $this->security->getUser();
+        if ($entityWorkflow->getCurrentStep()->getAllDestUser()->contains($currentUser)) {
+            return true;
+        }
+
+        return false;
+    }
+
+}