feat: replace *Service suffix with role-based class names

src/Form/Service/Condition/BookingEligibilityCondition.php

@@ -6,7 +6,7 @@ namespace App\Form\Service\Condition;
 
 use App\Form\Model\BookingDto;
 use App\Form\Service\Contract\FieldConditionInterface;
-use App\Service\ParticipantEligibilityService;
+use App\Service\ParticipantEligibilityChecker;
 
 /**
  * Condition that evaluates whether a participant is eligible for booking.
@@ -26,7 +26,7 @@ use App\Service\ParticipantEligibilityService;
 class BookingEligibilityCondition implements FieldConditionInterface
 {
     public function __construct(
-        private readonly ParticipantEligibilityService $participantEligibilityService,
+        private readonly ParticipantEligibilityChecker $participantEligibilityService,
     ) {
     }