wip: dynamic services fields

src/Form/Service/ParticipantFieldOptionsProvider.php

@@ -96,6 +96,7 @@ class ParticipantFieldOptionsProvider extends AbstractFieldOptionsProvider
                 $bookingDto,
                 $participantIndex
             ),
+            'choice_value' => 'id',
             'choice_label' => 'label',
         ];
 
@@ -142,6 +143,7 @@ class ParticipantFieldOptionsProvider extends AbstractFieldOptionsProvider
                 $bookingDto,
                 $participantIndex
             ),
+            'choice_value' => 'id',
             'choice_label' => 'label',
         ];
 
@@ -156,9 +158,35 @@ class ParticipantFieldOptionsProvider extends AbstractFieldOptionsProvider
                 $bookingDto,
                 $participantIndex
             ),
+            'choice_value' => 'id',
             'choice_label' => 'label',
         ];
 
+        // Skipass field provider - provides age-appropriate skipass options from travel data filtered by date range
+        $this->fieldOptionProviders['skiPass'] = fn (BookingDtoInterface $bookingDto, int $participantIndex) => [
+            'label' => 'Skipass',
+            'multiple' => false,
+            'expanded' => true,
+            'required' => true,
+            'choices' => $this->filterServicesByAgeConstraints(
+                $bookingDto->travel->getAdditionalServicesBySubTypes(Constants::TOKEN_SKI_PASS, true, true),
+                $bookingDto,
+                $participantIndex
+            ),
+            'choice_value' => 'id',
+            'choice_label' => 'label',
+        ];
+
+        // Room remarks field provider - provides textarea for room-specific remarks (only for 'mbz' rooms)
+        $this->fieldOptionProviders['remarksRoom'] = fn (BookingDtoInterface $bookingDto, int $participantIndex) => [
+            'label' => 'Wünsche oder Anmerkungen zum Zimmer',
+            'required' => false,
+            'clean_xss' => true,
+            'attr' => [
+                'rows' => 2,
+            ],
+        ];
+
         // Future field providers would be added here, for example:
         //
         // $this->fieldOptionProviders['mealPreference'] = fn($bookingDto, $participantIndex) => [
@@ -190,7 +218,7 @@ class ParticipantFieldOptionsProvider extends AbstractFieldOptionsProvider
 
         $participant = $bookingDto->getParticipant($participantIndex);
 
-        // If no birth date provided, return empty array (handled by field visibility conditions)
+        // If no birthdate provided, return empty array (handled by field visibility conditions)
         if (null === $participant || null === $participant->dateOfBirth) {
             return [];
         }