feat(warehouses): prefill receive-to-warehouse from existing booking data

The receive form now arrives filled with everything the booking already knows,
instead of the operator re-typing it:

- container numbers come from the per-unit records (booking_container_units)
  entered at booking time, falling back to the line-level aggregate
- customs seal number prefilled from the units' seal numbers
- net weight prefilled from the booking's declared cargo weight (tonnes)
- driver signatory defaults to the arriving driver's name

Existing prefills (owner, TIN, phone, booking ref, cargo, packaging, unit
count, first-mile / customer truck + driver) unchanged; all fields stay
editable where they were editable before.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/edr-freight-web/backoffice/src/components/warehouses/ReceiveInventoryModal.tsx

@@ -296,6 +296,10 @@ const truckEntranceFromBookings = (bookings: EligibleBooking[]): {
   const truckType = commonNonEmptyValue(
     bookings.map((booking) => booking.firstMileTruckType || booking.customerTruckType),
   );
+  const customsSealNumber = commonNonEmptyValue(bookings.map((booking) => booking.sealNumbers));
+  // Booking's declared cargo weight (tonnes) — the receive-time net until re-weighed.
+  const bookingWeight = bookings.length === 1 ? Number(bookings[0]?.weight ?? '') : NaN;
+  const netWeightKg: number | '' = Number.isFinite(bookingWeight) && bookingWeight > 0 ? bookingWeight : '';
   const edrDigitalBookingId =
     bookings.length === 1
       ? bookings[0]?.reference ?? bookings[0]?.id ?? ''
@@ -321,9 +325,11 @@ const truckEntranceFromBookings = (bookings: EligibleBooking[]): {
       customerPhone,
       edrDigitalBookingId,
       assignedEquipmentNumber,
+      customsSealNumber,
       itemDescription,
       packagingType,
       unitCount,
+      netWeightKg,
       grossWeightKg: '',
       truckPlateNumber,
       trailerPlateNumber,
@@ -331,6 +337,7 @@ const truckEntranceFromBookings = (bookings: EligibleBooking[]): {
       driverPhone,
       driverLicenseNumber,
       truckType,
+      driverSignatoryName: driverName,
     },
     lockedFields: {
       ownerName: Boolean(ownerName),