fix(app): Fixing a Psalm issue with transform method

Author: lonnieezell

system/API/BaseTransformer.php

@@ -95,7 +95,7 @@ abstract public function toArray(mixed $resource): array;
      * Transforms the given resource into an array using
      * the $this->toArray().
      */
-    public function transform(mixed $resource = null): array
+    public function transform(array|object|null $resource = null): array
     {
         // Store the resource so include methods can access it
         $this->resource = $resource;

system/API/TransformerInterface.php

@@ -34,11 +34,11 @@ public function toArray(mixed $resource): array;
     /**
      * Transforms the given resource into an array.
      *
-     * @param array<string, mixed>|object $resource
+     * @param array<string, mixed>|object|null $resource
      *
      * @return array<string, mixed>
      */
-    public function transform(array|object $resource): array;
+    public function transform(array|object|null $resource): array;
 
     /**
      * Transforms a collection of resources using $this->transform() on each item.