feat: automatic unselection of discounted transportation

src/Form/Service/ParticipantFieldOptionsProvider.php

@@ -844,6 +844,16 @@ class ParticipantFieldOptionsProvider extends AbstractFieldOptionsProvider
 
         // If we have both discounted and regular options, apply smart filtering
         if (null !== $discountedPkw && null !== $regularPkw) {
+            // Get participant to check inbound transportation
+            $participant = $bookingDto->getParticipant($participantIndex);
+            $inboundIsBus = null !== $participant?->transportationInbound
+                && DirectionMapper::SUBTYPE_BUS_API === $participant->transportationInbound->subType;
+
+            // If inbound is BUS, always show regular PKW (not discounted)
+            if ($inboundIsBus) {
+                return [...$otherServices, $regularPkw];
+            }
+
             // Check if discounted option is unavailable for this participant (per-booking availability)
             $discountedIsUnavailable = $this->serviceAvailabilityCalculator->isServiceUnavailable(
                 $discountedPkw->id,