Update CategoryResource to show only item templates.

app/Http/Resources/API/v2/CategoryResource.php

@@ -5,6 +5,8 @@ namespace App\Http\Resources\API\v2;
 use Illuminate\Http\Request;
 use Illuminate\Http\Resources\Json\JsonResource;
 
+use App\Models\Item;
+
 class CategoryResource extends JsonResource
 {
     /**
@@ -14,12 +16,16 @@ class CategoryResource extends JsonResource
      */
     public function toArray(Request $request): array
     {
+        $items = Item::where('category_id', $this->id)
+               ->where('count', 0)
+               ->get();
+
         return [
             'id' => $this->id,
             'uuid' => $this->uuid,
             'name' => $this->name,
             'url' => $this->url,
-            'items' => ItemResource::collection($this->whenLoaded('items'))
+            'items' => ItemResource::collection($items)
         ];
     }
 }