wip: refactor to cards with individual participant forms

src/Form/Service/ParticipantParkingFieldHandler.php

@@ -37,11 +37,12 @@ class ParticipantParkingFieldHandler extends AbstractParticipantFieldHandler
      * participant DTO is updated correctly when transportation switches to bus-only.
      *
      * @param array<string, mixed> $submittedData    The submitted participant form data
+     * @param string               $mode             The booking mode (BookingDto::MODE_CREATE or MODE_EDIT)
      * @param int                  $participantIndex The index of the participant being processed
      *
      * @return bool Always returns true for parking selection fields
      */
-    public function shouldProcess(array $submittedData, int $participantIndex): bool
+    public function shouldProcess(array $submittedData, string $mode, int $participantIndex): bool
     {
         return true; // Always process for state changes
     }