feat(bookings): per-row stations + totals footer on carriage acceptance sheet

The sheet printed Departure/Arrival Station as booking-level constants and
squeezed the footer figures into unrelated table columns (gross weight under
Cargo Name, full/empty under Wagon No.).

Stations now resolve per row from the slot's own board/alight yard, falling
back to the schedule's origin/destination and then the booking yards —
mirroring buildExportLoadListHtml's leg-slot handling.

The paper form's footer becomes its own tile block: In Total Wagon No., Tare
Weight, Load Capacity, Gross Weight, Equated Length, Full Wagon, Empty Wagon,
Total Amount. Rendered as .tile so buildTabularFallbackPdf still prints every
figure where Chromium is absent.

apps/edr-freight-api/src/modules/bookings/bookings.service.ts

@@ -112,6 +112,9 @@ interface CarriageAcceptanceWagonRow {
   departureAt: Date | null;
   marshalledAt: string | null;
   arrivalAt: string | null;
+  /** Per-row stations: the slot's own board/alight yard, else the schedule's endpoints. */
+  departureStation: string | null;
+  arrivalStation: string | null;
   containerNumbers: string | null;
   sealNumbers: string | null;
   /** Allocation status — LOADED/DEPARTED means EDR has the cargo. */
@@ -291,6 +294,8 @@ export class BookingsService {
               s.scheduled_departure_date       AS "departureAt",
               so.label                         AS "marshalledAt",
               sd.label                         AS "arrivalAt",
+              COALESCE(by_.label, so.label)    AS "departureStation",
+              COALESCE(ay.label, sd.label)     AS "arrivalStation",
               a.status                         AS "status",
               string_agg(DISTINCT ci.container_number, ', ') AS "containerNumbers",
               string_agg(DISTINCT ci.seal_number, ', ')      AS "sealNumbers"
@@ -303,11 +308,14 @@ export class BookingsService {
            ON s.train_set_id = tsw.train_set_id AND s.deleted_at IS NULL
          LEFT JOIN freight.yards so ON so.id = s.origin_station_id
          LEFT JOIN freight.yards sd ON sd.id = s.destination_station_id
+         LEFT JOIN freight.yards by_ ON by_.id = tsw.board_yard_id
+         LEFT JOIN freight.yards ay ON ay.id = tsw.alight_yard_id
          LEFT JOIN freight.wagon_allocation_container_items ci
            ON ci.wagon_booking_allocation_id = a.id AND ci.deleted_at IS NULL
         WHERE a.booking_id = $1 AND a.deleted_at IS NULL
         GROUP BY tsw.id, a.id, a.status, wt.code, wt.name, w.wagon_number, wt.tare_weight_tons,
-                 s.train_number, s.scheduled_departure_date, so.label, sd.label
+                 s.train_number, s.scheduled_departure_date, so.label, sd.label,
+                 by_.label, ay.label
         ORDER BY tsw.sequence_no`,
       [bookingId],
     );
@@ -388,6 +396,8 @@ export class BookingsService {
         departureAt: null,
         marshalledAt: null,
         arrivalAt: null,
+        departureStation: null,
+        arrivalStation: null,
         containerNumbers: row.containerNumbers,
         sealNumbers: row.sealNumbers ?? null,
         // A received line has no allocation; it is cargo EDR already holds.
@@ -539,9 +549,9 @@ export class BookingsService {
           <td class="num">${num(w.tareWeightTons, 2)}</td>
           <td class="num">${num(w.equatedLength)}</td>
           <td class="num">${num(w.loadCapacityTons)}</td>
-          <td>${esc(arrivalStation)}</td>
+          <td>${esc(w.arrivalStation ?? arrivalStation)}</td>
           <td>${esc(cargoName)}</td>
-          <td>${esc(departureStation)}</td>
+          <td>${esc(w.departureStation ?? departureStation)}</td>
           <td>${esc(w.containerNumbers)}</td>
           <td>${esc(w.sealNumbers)}</td>
           <td class="${isLoaded(w) ? 'loaded' : 'pending'}">${
@@ -558,16 +568,12 @@ export class BookingsService {
     const totalsRow = `<tr class="totals">
         <td>TOT</td>
         <td>${loadedWagons.length} ${pendingWagons ? 'received lines' : 'wagons loaded'}</td>
-        <td>${
-          pendingWagons
-            ? 'pending marshalling'
-            : `full ${fullWagons} / empty ${loadedWagons.length - fullWagons}`
-        }</td>
+        <td></td>
         <td class="num">${num(totals.tare, 2)}</td>
         <td class="num">${num(totals.length)}</td>
         <td class="num">${num(totals.capacity)}</td>
         <td></td>
-        <td>Gross ${num(totals.tare + totals.load)} T</td>
+        <td></td>
         <td></td>
         <td></td>
         <td></td>
@@ -575,6 +581,23 @@ export class BookingsService {
         <td class="num">${money(totalAmount)}</td>
       </tr>`;
 
+    // The signed footer of the paper sheet. Rendered as .tile so the
+    // Chromium-less fallback (buildTabularFallbackPdf parses .tile, not
+    // arbitrary divs) still prints every figure.
+    const footer = `
+  <div class="summary footer-summary">
+    <div class="tile"><span>In Total Wagon No.</span><strong>${loadedWagons.length}</strong></div>
+    <div class="tile"><span>Tare Weight (T)</span><strong>${num(totals.tare, 2)}</strong></div>
+    <div class="tile"><span>Load Capacity (T)</span><strong>${num(totals.capacity)}</strong></div>
+    <div class="tile"><span>Gross Weight (T)</span><strong>${num(totals.tare + totals.load)}</strong></div>
+    <div class="tile"><span>Equated Length</span><strong>${num(totals.length)}</strong></div>
+    <div class="tile"><span>Full Wagon</span><strong>${pendingWagons ? '-' : fullWagons}</strong></div>
+    <div class="tile"><span>Empty Wagon</span><strong>${
+      pendingWagons ? '-' : loadedWagons.length - fullWagons
+    }</strong></div>
+    <div class="tile"><span>Total Amount (${esc(currency)})</span><strong>${money(totalAmount)}</strong></div>
+  </div>`;
+
     return `<!doctype html>
 <html>
 <head>
@@ -591,6 +614,8 @@ export class BookingsService {
     .meta { text-align: right; font-size: 11px; color: #475569; min-width: 210px; }
     .meta strong { display: block; margin-top: 4px; color: #0f172a; font-size: 15px; }
     .summary { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; margin: 14px 0; }
+    .footer-summary { grid-template-columns: repeat(8, 1fr); margin: 10px 0 0; }
+    .footer-summary .tile { background: #f8fafc; }
     .tile { border: 1px solid #cbd5e1; padding: 8px; min-height: 50px; }
     .tile span { display: block; color: #64748b; font-size: 9px; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
     .tile strong { font-size: 11px; }
@@ -652,6 +677,7 @@ export class BookingsService {
       ${totalsRow}
     </tbody>
   </table>
+${footer}
 
   <div class="notice">
     ${