feat(bookings): enhance operation request flow and add location selection for first/last mile

apps/edr-freight-api/src/modules/bookings/dto/request-changes.dto.ts

@@ -1,5 +1,7 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
 import {
+  IsBoolean,
+  IsDateString,
   IsIn,
   IsInt,
   IsNumber,
@@ -99,3 +101,51 @@ export class ReviewDocumentDto {
   @IsString()
   note?: string;
 }
+
+export class RequestOperationDto {
+  @ApiProperty({
+    description:
+      'The schedule day (train departure day) the customer selects for this ' +
+      'shipment. ISO date — the booking enters the batch pool for this route + day.',
+    example: '2026-07-15',
+  })
+  @IsDateString()
+  scheduledDate!: string;
+}
+
+export class OperationReviewDto {
+  @ApiProperty({
+    description:
+      'The operations decision: ACCEPT enters the batch pool; REQUEST_CHANGES ' +
+      'returns it to the customer with a note; ADJUST_PRICE sets a new total the ' +
+      'customer must re-confirm before it proceeds.',
+    enum: ['ACCEPT', 'REQUEST_CHANGES', 'ADJUST_PRICE'],
+  })
+  @IsIn(['ACCEPT', 'REQUEST_CHANGES', 'ADJUST_PRICE'])
+  decision!: 'ACCEPT' | 'REQUEST_CHANGES' | 'ADJUST_PRICE';
+
+  @ApiPropertyOptional({
+    description: 'Required for REQUEST_CHANGES (what the customer must fix).',
+  })
+  @IsOptional()
+  @IsString()
+  note?: string;
+
+  @ApiPropertyOptional({
+    description: 'New total price — required for ADJUST_PRICE.',
+  })
+  @IsOptional()
+  @IsNumber()
+  @Min(0)
+  amount?: number;
+}
+
+export class ConfirmOperationPriceDto {
+  @ApiProperty({
+    description:
+      'true to accept the operations price adjustment and proceed to the ' +
+      'batch pool; false to reject it (returns to operation changes requested).',
+  })
+  @IsBoolean()
+  accept!: boolean;
+}