feat: auto-booking services

addresses #869cfcptv

src/Controller/Booking/Traits/ParticipantCardFlowTrait.php

@@ -122,13 +122,19 @@ trait ParticipantCardFlowTrait
         int $index,
         string $refreshRouteName,
     ): Response {
+        $refreshFormOptions = ['validation_groups' => false];
+
         // Create form with validation disabled
-        $form = $this->createParticipantForm($bookingDto, $index, [
-            'validation_groups' => false,
-        ]);
+        $form = $this->createParticipantForm($bookingDto, $index, $refreshFormOptions);
 
         $form->handleRequest($request);
 
+        // Refresh endpoint is POST-only and always processes submitted participant data.
+        $this->bookingService->preselectDefaultServices($bookingDto);
+
+        // Recreate form so the rendered state reflects any new auto-preselections.
+        $form = $this->createParticipantForm($bookingDto, $index, $refreshFormOptions);
+
         // Collect notifications from field handlers
         $notifications = $this->collectAndClearNotifications($bookingDto);