feat: API endpoint to load travel data by code

src/BusProNet/Model/CrmSelectionGroup.php

@@ -2,6 +2,8 @@
 
 namespace App\BusProNet\Model;
 
+use Symfony\Component\Serializer\Attribute\Groups;
+
 class CrmSelectionGroup
 {
     /**
@@ -16,8 +18,13 @@ class CrmSelectionGroup
         86 => 'Programm',
     ];
 
+    #[Groups(['api:single'])]
     public ?int $id = null;
+
+    #[Groups(['api:single'])]
     public ?string $label = null;
+
+    #[Groups(['api:single'])]
     public ?array $selections = null;
 
     public function getMutableSelections(): array
@@ -27,6 +34,7 @@ class CrmSelectionGroup
         });
     }
 
+    #[Groups(['api:single'])]
     public function isVisible(): bool
     {
         return 0 < count($this->getMutableSelections());