fix: allow updating room assignments in edit mode

src/BusProNet/DataProcessor/BookingDataProcessor.php

@@ -162,6 +162,8 @@ class BookingDataProcessor
                 $roomSelection->label = $room->label;
                 $roomSelection->price = $room->price;
                 $roomSelection->quantity = $bookingRoom->totalCount; // Actual quantity from booking XML (anzahl)
+                $roomSelection->capacity = $room->minPax ?? 1;
+                $roomSelection->maxQuantity = $bookingRoom->totalCount + ($room->available ?? 0);
                 $dto->roomSelections[] = $roomSelection;
             }
         }

src/BusProNet/DataProcessor/BookingPayloadBuilder.php

@@ -172,7 +172,7 @@ class BookingPayloadBuilder
                 '@idverpflegung' => $room->boardId,
                 '@anreise' => $room->dateFrom ? $room->dateFrom->format('d.m.Y') : null,
                 '@abreise' => $room->dateTo ? $room->dateTo->format('d.m.Y') : null,
-                '@anzahl' => $room->totalCount,
+                '@anzahl' => count($uniqueMapping),
                 '@zuordnung' => implode(',', array_map(fn ($index) => $index + 1, $uniqueMapping)),
             ];
         }
@@ -456,21 +456,12 @@ class BookingPayloadBuilder
         $availableRooms = $bookingDto->travel->getAvailableRooms();
         $payload['ferienzielunterbringungen']['ferienzielunterbringung'] = [];
 
-        // Build room selection quantity lookup
-        $roomQuantities = [];
-        foreach ($bookingDto->roomSelections as $selection) {
-            if ($selection->quantity > 0) {
-                $roomQuantities[$selection->id] = $selection->quantity;
-            }
-        }
-
         foreach ($roomMap as $roomId => $participantIds) {
             $room = $availableRooms[$roomId] ?? null;
             if (null === $room) {
                 continue;
             }
 
-            $quantity = $roomQuantities[$roomId] ?? 1;
             $uniqueParticipantIds = array_unique($participantIds);
 
             $payload['ferienzielunterbringungen']['ferienzielunterbringung'][] = [
@@ -479,7 +470,7 @@ class BookingPayloadBuilder
                 '@idverpflegung' => $room->boardId,
                 '@anreise' => $bookingDto->travel->dateFrom->format('d.m.Y'),
                 '@abreise' => $bookingDto->travel->dateTo->format('d.m.Y'),
-                '@anzahl' => $quantity,
+                '@anzahl' => count($uniqueParticipantIds),
                 '@zuordnung' => implode(',', $uniqueParticipantIds),
             ];
         }