feat: endpoint pour la création d'un manga directement via l'api

src/Domain/Manga/Application/Command/CreateManga.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Domain\Manga\Application\Command;
+
+readonly class CreateManga
+{
+    public function __construct(
+        public string $title,
+        public string $slug,
+        public string $description,
+        public string $author,
+        public int $publicationYear,
+        public array $genres,
+        public string $status,
+        public ?string $externalId,
+        public ?string $imageUrl,
+        public ?float $rating
+    ) {}
+}