Preparations for bulk editing of tags

Made "target" parameter of handleAction in parts table a string
Sanitize input for exisitng action which expect an int
Add tag (dummy) to SelectAPI
Add tag option to twig template

src/Controller/SelectAPIController.php

@@ -33,6 +33,7 @@ use App\Entity\Parts\StorageLocation;
 use App\Entity\ProjectSystem\Project;
 use App\Form\Type\Helper\StructuralEntityChoiceHelper;
 use App\Services\Trees\NodesListBuilder;
+use App\ApiPlatform\Filter\TagFilter;
 use Doctrine\ORM\EntityManagerInterface;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Response;
@@ -49,6 +50,20 @@ class SelectAPIController extends AbstractController
     {
     }
 
+    #[Route(path: '/tag', name: 'select_tag')]
+    public function tag(): Response
+    {
+		$tags = [
+                    'text' => 'test',
+                    'value' => 'test',
+                ];
+		$this->addEmptyNode($tags);
+		// pseudocode:
+		// for each part in selection
+		//   use TagFilter to find tags
+		// dedupe
+		return $this->json($tags);
+	
     #[Route(path: '/category', name: 'select_category')]
     public function category(): Response
     {