Add stored object creation endpoint

Introduced a new API endpoint to create stored objects with access control for roles 'ROLE_ADMIN' and 'ROLE_USER'. Updated corresponding routes, removed unused dependencies, and added unit tests to ensure functionality.

src/Bundle/ChillDocStoreBundle/Tests/Controller/StoredObjectApiControllerTest.php

@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\DocStoreBundle\Tests\Controller;
+
+use Chill\DocStoreBundle\Controller\StoredObjectApiController;
+use Chill\DocStoreBundle\Entity\StoredObject;
+use Doctrine\ORM\EntityManagerInterface;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\Security\Core\Security;
+use Symfony\Component\Serializer\SerializerInterface;
+
+/**
+ * @internal
+ *
+ * @coversNothing
+ */
+class StoredObjectApiControllerTest extends TestCase
+{
+    public function testCreate(): void
+    {
+        $security = $this->createMock(Security::class);
+        $security->expects($this->atLeastOnce())->method('isGranted')
+            ->with($this->logicalOr($this->identicalTo('ROLE_ADMIN'), $this->identicalTo('ROLE_USER')))
+            ->willReturn(true)
+        ;
+
+        $entityManager = $this->createMock(EntityManagerInterface::class);
+        $entityManager->expects($this->once())->method('persist')->with($this->isInstanceOf(StoredObject::class));
+        $entityManager->expects($this->once())->method('flush');
+
+        $serializer = $this->createMock(SerializerInterface::class);
+        $serializer->expects($this->once())->method('serialize')
+            ->with($this->isInstanceOf(StoredObject::class), 'json', $this->anything())
+            ->willReturn($r = <<<'JSON'
+            {"type":  "stored-object", "id":  1}
+            JSON);
+
+        $controller = new StoredObjectApiController($security, $serializer, $entityManager);
+
+        $actual = $controller->createStoredObject();
+
+        self::assertInstanceOf(JsonResponse::class, $actual);
+        self::assertEquals($r, $actual->getContent());
+    }
+}