wip: show pricing

src/Form/Service/ParticipantFieldHandlerRegistry.php

@@ -6,6 +6,7 @@ namespace App\Form\Service;
 
 use App\BusProNet\Model\Service;
 use App\Form\Model\BookingDtoInterface;
+use App\Form\Model\ParticipantDto;
 use App\Form\Service\Contract\ParticipantFieldHandlerInterface;
 
 /**
@@ -17,7 +18,7 @@ use App\Form\Service\Contract\ParticipantFieldHandlerInterface;
  */
 class ParticipantFieldHandlerRegistry
 {
-    /** @var ParticipantFieldHandlerInterface[] Registered handlers indexed by field name */
+    /** @var array<string, ParticipantFieldHandlerInterface> Registered handlers indexed by field name */
     private array $handlers = [];
 
     /** @var string[]|null Cached array of handler names sorted by dependency order */
@@ -274,11 +275,11 @@ class ParticipantFieldHandlerRegistry
      * been processed by checking against registered handlers.
      *
      * @param array<string, mixed> $participantData The submitted participant data
-     * @param object               $participant     The cleaned participant DTO
+     * @param ParticipantDto       $participant     The cleaned participant DTO
      *
      * @return array<string, mixed> Updated participant data with synchronized field values
      */
-    private function syncParticipantData(array $participantData, object $participant): array
+    private function syncParticipantData(array $participantData, ParticipantDto $participant): array
     {
         // Sync fields for all registered handlers
         foreach ($this->handlers as $fieldName => $handler) {