fix u=issue

apps/edr-freight-web/backoffice/src/components/trainScheduling/PinWagonsForm.tsx

@@ -36,7 +36,9 @@ export function PinWagonsForm({
   autoFillOnMount?: boolean;
 }) {
   const originYardId = schedule.originStation?.id;
-  const slots = schedule.trainSet?.wagons ?? [];
+  // Consist-only rows are the built train's coupled-but-empty wagons — display
+  // entries with no TrainSetWagon slot behind them, so nothing can be pinned.
+  const slots = (schedule.trainSet?.wagons ?? []).filter((w) => !w.consistOnly);
   const [assignments, setAssignments] = useState<Record<string, string>>({});
 
   const wagonOptionsByType = useMemo(() => {

apps/edr-freight-web/backoffice/src/components/trainScheduling/compositionEditor/InteractiveTrainConsist.tsx

@@ -359,7 +359,9 @@ function WagonCar({
 
           {isEmpty ? (
             <Text size="xs" c="dimmed">
-              Empty slot — available for allocation.
+              {wagon.consistOnly
+                ? "Empty wagon — coupled on the train, no load planned."
+                : "Empty slot — available for allocation."}
             </Text>
           ) : (
             <Stack gap={6}>

apps/edr-freight-web/backoffice/src/components/trainScheduling/compositionEditor/WagonCard.tsx

@@ -167,9 +167,9 @@ export const WagonCard = ({
               <TrainFront size={18} />
             </ThemeIcon>
             <Text size="sm" c="dimmed">
-              Empty slot
+              {wagon.consistOnly ? "Empty wagon — coupled on the train" : "Empty slot"}
             </Text>
-            {!isDispatched ? (
+            {!isDispatched && !wagon.consistOnly ? (
               <Button
                 variant="subtle"
                 color="gray"