Cast client_id to string in JSON response (#93)

Co-authored-by: Mostafa Rouzbahani <[email protected]>
Co-authored-by: Ashley Hindle <[email protected]>

Author: 3 people

src/Server/Registrar.php

@@ -118,7 +118,7 @@ public function oauthRoutes(string $oauthPrefix = 'oauth'): void
             );
 
             return response()->json([
-                'client_id' => $client->id,
+                'client_id' => (string) $client->id,
                 'grant_types' => $client->grantTypes,
                 'response_types' => ['code'],
                 'redirect_uris' => $client->redirectUris,