feat: surcharges and discounts per participant and in summary

src/Service/ParticipantCardDataService.php

@@ -120,6 +120,31 @@ class ParticipantCardDataService
      */
     private function getFormattedPrice(BookingDto $bookingDto, int $index): string
     {
+        // Check if canceled (only possible in edit mode when booking property is set)
+        $isCanceled = ($bookingDto->booking?->participantsStatus[$index] ?? null) === 'S';
+
+        if (true === $isCanceled) {
+            // Calculate surcharge total for canceled participant
+            if (null === $bookingDto->booking) {
+                return '-';
+            }
+
+            $surcharges = $bookingDto->booking->getSurchargesForParticipant($index);
+            $surchargeTotal = 0.0;
+
+            foreach ($surcharges as $surcharge) {
+                $surchargeTotal += $surcharge->individualPrice[$index] ?? 0.0;
+            }
+
+            // Show nothing if no surcharges, otherwise show "x,xx € Stornokosten"
+            if (0.0 === $surchargeTotal) {
+                return '-';
+            }
+
+            return number_format($surchargeTotal, 2, ',', '.').' € Stornokosten';
+        }
+
+        // For active participants: existing price calculation logic
         $prices = $this->priceCalculator->calculateAllParticipantIndividualPrices($bookingDto);
 
         $price = $prices[$index] ?? 0.0;