feat: surcharges and discounts per participant and in summary

templates/booking/_summary.html.twig

@@ -105,6 +105,25 @@
         </div>
     {% endif %}
 
+    {# Surcharges Section (Edit mode only) #}
+    {% if pricingData.surcharges is defined and pricingData.surcharges is not empty %}
+        <div class="mb-6 pb-4 border-b border-gray-200">
+            <h4 class="font-semibold text-lg mb-3 text-gray-800">Zuschläge</h4>
+            <div class="space-y-1">
+                {% for surchargePricing in pricingData.surcharges %}
+                    <div class="flex justify-between items-center text-sm">
+                        <span class="text-gray-600">
+                            {{ surchargePricing.participantCount }}x {{ surchargePricing.label }}
+                        </span>
+                        <span class="font-medium text-gray-900">
+                            €{{ surchargePricing.totalPrice|number_format(2, ',', '.') }}
+                        </span>
+                    </div>
+                {% endfor %}
+            </div>
+        </div>
+    {% endif %}
+
     {# Total Section #}
     {% if pricingData.grandTotal is defined and pricingData.grandTotal > 0 %}
         <div class="pt-4 border-t-2 border-gray-300">