refactor: add DTO class to validate schema

src/Dto/Connector/OvhProviderDto.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Dto\Connector;
+
+use Symfony\Component\Validator\Constraints as Assert;
+
+final class OvhProviderDto extends DefaultProviderDto
+{
+    #[Assert\NotBlank]
+    public string $appKey;
+
+    #[Assert\NotBlank]
+    public string $appSecret;
+
+    #[Assert\NotBlank]
+    public string $apiEndpoint;
+
+    #[Assert\NotBlank]
+    public string $consumerKey;
+
+    #[Assert\Choice(['create-default', 'create-premium'])]
+    public string $pricingMode;
+
+    #[Assert\NotBlank]
+    public string $ovhSubsidiary;
+}