feat(warehouses): handover-driven approve delivery, weigh-skip, 5-min sign reminders

Approve delivery now tracks the handover lifecycle exactly: the button appears
(detail page + portal dashboard) the moment a handover is generated and
disappears when the customer signs. The bookings list attaches the
handoverAwaitingSignature flag via one batched query per page; status
heuristics (COMPLETED / TRUCK_ASSIGNED+arrived) are gone.

- generate the arrival handover for ANY self-haul truck: portal-assigned OR
  walk-in registered at the gate (isSelfHaulBooking: assigned_at set, or no
  EDR last-mile leg). Same rule now guards the exit paper.
- remind every 5 minutes (in-app + SMS + email) until the handover is signed
  (@Cron in HandoverService; one reminder per booking per tick)
- Truck Leaving no longer opens blank: the import queue mapper now carries
  inv.notes, so the saved arrival renders read-only with only gate-out time
  and gross weight editable
- container bookings get "Weigh truck? Yes/No": No skips tare/gross and the
  container weight match (weighingSkipped on ReleaseOrderDto, decision made at
  arrival sticks for the exit via the Weighing: SKIPPED note). Bulk always
  weighs, unchanged.

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

apps/edr-freight-api/src/modules/warehouses/dto/release-order.dto.ts

@@ -1,5 +1,5 @@
 import { ApiPropertyOptional } from '@nestjs/swagger';
-import { IsDateString, IsNumber, IsOptional, IsString, Min } from 'class-validator';
+import { IsBoolean, IsDateString, IsNumber, IsOptional, IsString, Min } from 'class-validator';
 
 /** Records a DO / release order being sent to the customer for import pickup. */
 export class ReleaseOrderDto {
@@ -90,4 +90,13 @@ export class ReleaseOrderDto {
   @IsOptional()
   @IsDateString()
   gateOutTime?: string;
+
+  @ApiPropertyOptional({
+    description:
+      'Container bookings only: the operator chose not to weigh this truck. ' +
+      'Tare/gross become optional and the container weight match is skipped. Bulk always weighs.',
+  })
+  @IsOptional()
+  @IsBoolean()
+  weighingSkipped?: boolean;
 }