feat: implement consolidation approval process for shared-wagon bookings

- Add migration for consolidation approvals table and status enum
- Create ConsolidationApprovalService to handle approval logic
- Implement repository for managing consolidation approvals
- Add entity for consolidation approval with necessary fields
- Develop frontend components for displaying and managing consolidation approvals
- Create tests for consolidation approval service to ensure correct behavior

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

@@ -50,6 +50,7 @@ import { BookingReferenceDataService } from './booking-reference-data.service';
 import { scopedDirections } from '../user-trade-access/trade-scope.util';
 import { UserTradeAccessService } from '../user-trade-access/user-trade-access.service';
 import { BookingsService } from './bookings.service';
+import { ConsolidationApprovalService } from './consolidation-approval.service';
 import { BookingReferenceDataDto } from './dto/booking-reference-data.dto';
 import { CreateBookingDto } from './dto/create-booking.dto';
 import { BookingListSummaryDto } from './dto/booking-list-summary.dto';
@@ -58,8 +59,10 @@ import { GeneratePriceResponseDto } from './dto/generate-price-response.dto';
 import { SubmitBookingResponseDto } from './dto/submit-booking-response.dto';
 import {
   AcceptIntakeDto,
+  ApproveConsolidationDto,
   CancelBookingDto,
   PairedDecisionDto,
+  RejectConsolidationDto,
   RejectBookingDto,
   RequestChangesDto,
   ReviewDocumentDto,
@@ -166,6 +169,7 @@ export class BookingsController {
     private readonly lastMileService: LastMileService,
     private readonly userTradeAccessService: UserTradeAccessService,
     private readonly wagonCancellationService: BookingWagonCancellationService,
+    private readonly consolidationApprovalService: ConsolidationApprovalService,
   ) {}
 
   @Post()
@@ -1542,6 +1546,67 @@ export class BookingsController {
     return this.transitionService.enrichBookingResponse(booking);
   }
 
+  // ── Shared-wagon (consolidation) approval gate ────────────────────────────
+  // A consolidated pair is held here, not in the operations queue: two
+  // customers' cargo on one wagon is a commercial call, so a person signs off
+  // on the pairing before Operations sees either half.
+
+  @Get("consolidation-approvals/queue")
+  @BookingStaff(FREIGHT_PERMS.bookings.approveConsolidation)
+  @ApiOperation({
+    summary:
+      "Shared-wagon pairings awaiting approval, oldest first. Each row covers BOTH bookings on the wagon.",
+  })
+  consolidationApprovalQueue() {
+    return this.consolidationApprovalService.queue();
+  }
+
+  @Get(":id/consolidation-approvals")
+  @BookingStaff(FREIGHT_PERMS.bookings.view)
+  @ApiOperation({
+    summary:
+      "Approval history for this booking's shared wagon — who decided what, when, and why.",
+  })
+  consolidationApprovalHistory(@Param("id", ParseUUIDPipe) id: string) {
+    return this.consolidationApprovalService.historyForBooking(id);
+  }
+
+  @Post("consolidation-approvals/:approvalId/approve")
+  @BookingStaff(FREIGHT_PERMS.bookings.approveConsolidation)
+  @ApiOperation({
+    summary:
+      "Approve a shared wagon: both bookings leave the gate and continue to Operations together.",
+  })
+  approveConsolidation(
+    @Param("approvalId", ParseUUIDPipe) approvalId: string,
+    @Body() dto: ApproveConsolidationDto,
+    @CurrentUser() user: AuthUserPayload,
+  ) {
+    return this.consolidationApprovalService.approve(
+      approvalId,
+      resolveAuthUserId(user) ?? "",
+      dto.note,
+    );
+  }
+
+  @Post("consolidation-approvals/:approvalId/reject")
+  @BookingStaff(FREIGHT_PERMS.bookings.approveConsolidation)
+  @ApiOperation({
+    summary:
+      "Reject a shared wagon: both bookings go back to GL for changes with the reason.",
+  })
+  rejectConsolidation(
+    @Param("approvalId", ParseUUIDPipe) approvalId: string,
+    @Body() dto: RejectConsolidationDto,
+    @CurrentUser() user: AuthUserPayload,
+  ) {
+    return this.consolidationApprovalService.reject(
+      approvalId,
+      resolveAuthUserId(user) ?? "",
+      dto.reason,
+    );
+  }
+
   @Post(":id/paired-decision")
   @BookingStaff(FREIGHT_PERMS.bookings.cancel)
   @ApiOperation({