export flow and fix intercity issue

apps/edr-freight-web/portal/src/services/api.ts

@@ -469,10 +469,18 @@ export const api = {
     ),
 
     getExportTrains: endpoint<
-      { bookingId: string; date: string },
+      {
+        bookingId: string;
+        date: string;
+        cargo?: {
+          containerSizes?: string[];
+          cargoTypeCode?: string;
+          wagons?: number;
+        };
+      },
       Freight.ExportTrainOption[]
-    >("train-scheduling", "exportTrains", ({ bookingId, date }) =>
-      bookingsService.getExportTrains(bookingId, date),
+    >("train-scheduling", "exportTrains", ({ bookingId, date, cargo }) =>
+      bookingsService.getExportTrains(bookingId, date, cargo),
     ),
 
     getMyBookingWindows: endpoint<void, MyBookingWindow[]>(

apps/edr-freight-web/portal/src/services/bookings.service.ts

@@ -510,13 +510,25 @@ export const bookingsService = {
   },
 
   // Export train picker: the day's export trains with per-wagon-type free space.
+  // The cargo params cover bare contract instances (nothing persisted yet) —
+  // sizes/code/wagons come from what the customer is entering on the form.
   getExportTrains: async (
     bookingId: string,
     date: string,
+    cargo?: { containerSizes?: string[]; cargoTypeCode?: string; wagons?: number },
   ): Promise<Freight.ExportTrainOption[]> => {
     const { data } = await client.get(
       `/api/bookings/${bookingId}/export-trains`,
-      { params: { date } },
+      {
+        params: {
+          date,
+          ...(cargo?.containerSizes?.length
+            ? { containerSizes: cargo.containerSizes.join(",") }
+            : {}),
+          ...(cargo?.cargoTypeCode ? { cargoTypeCode: cargo.cargoTypeCode } : {}),
+          ...(cargo?.wagons ? { wagons: cargo.wagons } : {}),
+        },
+      },
     );
     return data.data as Freight.ExportTrainOption[];
   },