feat: consistent display of included services and prices

src/Service/ParticipantCardDataService.php

@@ -86,7 +86,7 @@ class ParticipantCardDataService
         $name = trim($firstName.' '.$lastName);
 
         if ('' === $name) {
-            return 0 === $index ? 'Anmelder:in' : sprintf('Teilnehmer:in %d', $index);
+            return 0 === $index ? 'Anmelder:in' : 'Teilnehmer:in';
         }
 
         return $name;

src/Service/ServicePricingCalculator.php

@@ -217,10 +217,6 @@ class ServicePricingCalculator
         $servicesBySubtypeAndSign = [];
 
         foreach ($serviceAggregation as $serviceData) {
-            if (0.0 === $serviceData['totalPrice']) {
-                continue; // Skip zero-price services
-            }
-
             $subType = $serviceData['subType'] ?? 'other';
 
             // Normalize rental subtypes to avoid duplicate sections