Implement clearance-first booking flow and completion process for customs contracts

apps/edr-freight-web/backoffice/src/hooks/contracts/useContracts.ts

@@ -214,6 +214,27 @@ export function useContractMutations(contractId: string) {
     onError: () => toast.error("Failed to create booking"),
   });
 
+  const completeBooking = useMutation({
+    mutationFn: ({
+      bookingId,
+      payload,
+    }: {
+      bookingId: string;
+      payload: Freight.CreateBookingUnderContractDto;
+    }) =>
+      contractsService.completeBookingUnderContract(
+        contractId,
+        bookingId,
+        payload,
+      ),
+    onSuccess: () => {
+      toast.success("Booking completed");
+      void invalidateContractDetail(qc, contractId);
+    },
+    onError: (e: Error) =>
+      toast.error(e.message || "Failed to complete booking"),
+  });
+
   const isPending =
     staffAccept.isPending ||
     requestChanges.isPending ||
@@ -233,6 +254,7 @@ export function useContractMutations(contractId: string) {
     generateContract,
     signContract,
     createBooking,
+    completeBooking,
     isPending,
   };
 }