feat(bookings): add ad-hoc additional-charge module

New freight.additional_charge table, independent of BookingClearanceCharge
(unbounded per booking, free-text reason). Draft -> send issues an invoice
and notifies the customer in-app/SMS/email; settles via the standard
.invoice.paid event. Adds the Additional charges row-menu entry
next to Cancel booking, permission-gated.

Not included: the Additional Payments tab UI, add-charge modal, portal pay
flow.

apps/edr-freight-web/backoffice/src/components/bookings/BookingActionsMenu.tsx

@@ -1,10 +1,11 @@
 import { useNavigate } from "react-router-dom";
-import { ExternalLink, MoreHorizontal } from "lucide-react";
+import { ExternalLink, MoreHorizontal, Receipt } from "lucide-react";
 import { Button, Menu, ActionIcon, Group, Text } from "@mantine/core";
 
 import { BookingConfirmDialog } from "./BookingConfirmDialog";
 import { useBookingActionDialog } from "./useBookingActionDialog";
 import { useAuth } from "@/auth/useAuth";
+import { FREIGHT_PERMS, hasPermission as hasFreightPermission } from "@/lib/permissions";
 import {
   isAllocateAction,
   isClearanceNavAction,
@@ -50,6 +51,14 @@ export function BookingActionsMenu({
   const goToClearanceTab = () =>
     navigate(`/dashboard/booking-requests/${row.id}?tab=clearance`);
 
+  const goToAdditionalCharges = () =>
+    navigate(`/dashboard/booking-requests/${row.id}?tab=additional-charges`);
+
+  const canSeeAdditionalCharges = hasFreightPermission(
+    user,
+    FREIGHT_PERMS.additionalCharges.view,
+  );
+
   const handleAction = (action: (typeof actions)[number]) => {
     onSuppressRowClick?.();
     if (isContractNavAction(action.id)) {
@@ -144,6 +153,17 @@ export function BookingActionsMenu({
             );
           })}
           {actions.length > 0 && <Menu.Divider />}
+          {canSeeAdditionalCharges && (
+            <Menu.Item
+              leftSection={<Receipt size={15} />}
+              onClick={() => {
+                onSuppressRowClick?.();
+                goToAdditionalCharges();
+              }}
+            >
+              Additional charges
+            </Menu.Item>
+          )}
           <Menu.Item
             leftSection={<ExternalLink size={15} />}
             onClick={() => {

apps/edr-freight-web/backoffice/src/lib/permissions.ts

@@ -340,6 +340,12 @@ export const FREIGHT_PERMS = {
     cancel: "edr_freight_app:warehouse_fee_invoices:cancel",
     pay: "edr_freight_app:warehouse_fee_invoices:pay",
   },
+  additionalCharges: {
+    view: "edr_freight_app:additional_charges:view",
+    create: "edr_freight_app:additional_charges:create",
+    send: "edr_freight_app:additional_charges:send",
+    cancel: "edr_freight_app:additional_charges:cancel",
+  },
   /**
    * Audit trail. View-only — the API exposes no write routes for audit rows,
    * so there is no manage/delete counterpart to grant.