fix: always filter ski passes by participant's age

src/Form/Service/ParticipantFieldOptionsProvider.php

@@ -982,12 +982,10 @@ class ParticipantFieldOptionsProvider extends AbstractFieldOptionsProvider
     /**
      * Filters ski pass choices for display.
      *
-     * Unlike other services, ski passes are shown even when age-restricted
-     * (marked as readonly instead of hidden) to avoid user confusion about
-     * included ski passes not being visible.
-     *
-     * Baby filtering is preserved: babies only see services explicitly
-     * including their age range.
+     * Ski passes follow the same age evaluation rules as the rest of the booking flow.
+     * Participants only see passes that match their age or birth year. In edit mode,
+     * the currently booked ski pass is preserved even if it would otherwise be filtered
+     * out, so existing bookings remain renderable and editable.
      *
      * @param Service[]  $services         Array of ski pass Service objects to filter
      * @param BookingDto $bookingDto       The booking DTO containing participant data
@@ -1004,17 +1002,18 @@ class ParticipantFieldOptionsProvider extends AbstractFieldOptionsProvider
             return [];
         }
 
-        // Check if participant is a baby
-        $age = $participant->getAge($bookingDto->travel->dateFrom);
-        $isBaby = null !== $age && $age <= Constants::BABY_MAX_AGE;
+        $filteredServices = $this->filterServicesByAgeConstraints($services, $bookingDto, $participantIndex);
 
-        // For babies: keep existing filtering logic (only show services with explicit baby age ranges)
-        if ($isBaby) {
-            return $this->filterServicesByAgeConstraints($services, $bookingDto, $participantIndex);
+        if (BookingDto::MODE_EDIT !== $bookingDto->getMode() || null === $participant->skiPass?->id) {
+            return $filteredServices;
         }
 
-        // For non-babies: return all services (age-restricted ones will be marked readonly in choice_attr)
-        return $services;
+        $currentSkiPassId = $participant->skiPass->id;
+        if (false === isset($filteredServices[$currentSkiPassId])) {
+            $filteredServices[$currentSkiPassId] = $services[$currentSkiPassId] ?? $participant->skiPass;
+        }
+
+        return $filteredServices;
     }
 
     /**