fix train builder and consolidation

apps/edr-freight-api/src/modules/train-schedules/entities/schedule-wagon-adjustment-log.entity.ts

@@ -0,0 +1,38 @@
+import { BaseEntity } from '@edr/api-common';
+import { Column, Entity, Index } from 'typeorm';
+
+export const WAGON_ADJUSTMENT_ACTIONS = ['ADD', 'REMOVE'] as const;
+export type WagonAdjustmentAction = (typeof WAGON_ADJUSTMENT_ACTIONS)[number];
+
+/**
+ * History row for a consist adjustment made from a schedule: staff coupled a
+ * wagon onto (ADD) or detached one from (REMOVE) the schedule's built train —
+ * e.g. trimming free wagons whose tare pushed gross weight over the
+ * locomotives' pull limit. Plain columns (no FK relations) so the history
+ * survives the wagon or train being deleted later.
+ */
+@Entity({ schema: 'freight', name: 'schedule_wagon_adjustment_logs' })
+@Index(['trainScheduleId'])
+@Index(['trainId'])
+export class ScheduleWagonAdjustmentLog extends BaseEntity {
+  @Column({ name: 'train_schedule_id', type: 'uuid' })
+  trainScheduleId!: string;
+
+  @Column({ name: 'train_id', type: 'uuid' })
+  trainId!: string;
+
+  @Column({ name: 'action', type: 'varchar', length: 10 })
+  action!: WagonAdjustmentAction;
+
+  @Column({ name: 'wagon_id', type: 'uuid' })
+  wagonId!: string;
+
+  @Column({ name: 'wagon_number', type: 'varchar', length: 50 })
+  wagonNumber!: string;
+
+  @Column({ name: 'adjusted_by_user_id', type: 'uuid', nullable: true })
+  adjustedByUserId!: string | null;
+
+  @Column({ name: 'occurred_at', type: 'timestamptz', default: () => 'now()' })
+  occurredAt!: Date;
+}