Fix roles serialized as JSON object instead of array in PHP 8.5 / Symfony 7.4+

Symfony 7.4 TypeInfo uses the @var annotation to infer list<string> vs array,
which affects whether json_encode produces [] or {}. Add the list<string> phpdoc
and call array_values() in setRoles() and in UserNormalizer to guarantee
sequential integer keys regardless of how the array was built.

Author: silverbackdan

src/Entity/User/AbstractUser.php

@@ -51,6 +51,7 @@ abstract class AbstractUser implements SymfonyUserInterface, PasswordAuthenticat
     #[Groups(['User:superAdmin', 'User:output', 'Form:cwa_resource:read'])]
     protected ?string $emailAddress;
 
+    /** @var list<string> */
     #[ORM\Column(type: 'json')]
     #[Groups(['User:superAdmin', 'User:output', 'Form:cwa_resource:read'])]
     protected array $roles;
@@ -183,7 +184,7 @@ public function getRoles(): array
 
     public function setRoles(array $roles): self
     {
-        $this->roles = $roles;
+        $this->roles = array_values($roles);
 
         return $this;
     }

src/Serializer/Normalizer/UserNormalizer.php

@@ -81,7 +81,7 @@ public function normalize($object, $format = null, array $context = []): float|a
         $context[self::ALREADY_CALLED] = true;
 
         $rolesAsEntities = $object->getRoles();
-        $object->setRoles($this->roleHierarchy->getReachableRoleNames($rolesAsEntities));
+        $object->setRoles(array_values($this->roleHierarchy->getReachableRoleNames($rolesAsEntities)));
 
         $subscribeTopics = $this->mercureAuthorization->getSubscribeTopics();
         $metadata = $this->resourceMetadataProvider->findResourceMetadata($object);