Fix:

Added assertCapacity() checks before saving (matches single receive)
Added applyCapacityDelta() after save to increment counters
Now validates warehouse → yard → zone capacity hierarchy
Single receive already had both checks; bulk receive was gap.

apps/edr-freight-api/src/migrations/2480000000000-AddMaintenanceDueNotifiedAt.ts

@@ -0,0 +1,22 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+/**
+ * Dedup stamp for the km/date-due maintenance alert — without it the daily
+ * cron would re-notify every day a schedule stays due.
+ */
+export class AddMaintenanceDueNotifiedAt2480000000000 implements MigrationInterface {
+  name = 'AddMaintenanceDueNotifiedAt2480000000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      ALTER TABLE freight.maintenance_schedules
+        ADD COLUMN IF NOT EXISTS due_notified_at timestamptz NULL
+    `);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      ALTER TABLE freight.maintenance_schedules DROP COLUMN IF EXISTS due_notified_at
+    `);
+  }
+}