feat(warehouses): allow deleting a warehouse

Soft-delete route guarded by warehouses:delete, refused with 409 while
yards remain — zones and inventory hang off a yard, so cascading would
orphan stock. Backoffice list gets a delete action in both views,
omitted when the user lacks the permission.

apps/edr-freight-api/src/modules/warehouses/warehouse-fee.service.ts

@@ -12,6 +12,8 @@ import { FREIGHT_PERMS } from '../../seed/freight-permissions.registry';
 
 interface ItemAttributes {
   arrivedAt: Date | null;
+  /** Backlog-registered box: real arrival on the record, but never billed. */
+  backlogRegistration: boolean;
   gateClearedAt: Date | null;
   releaseDate: Date | null;
   freightType: string | null;
@@ -260,6 +262,7 @@ export class WarehouseFeeService {
   private async loadItem(inventoryId: string): Promise<ItemAttributes> {
     const [row] = await this.dataSource.query(
       `SELECT inv.arrived_at        AS "arrivedAt",
+              inv.backlog_registration AS "backlogRegistration",
               inv.gate_cleared_at   AS "gateClearedAt",
               inv.release_date      AS "releaseDate",
               inv.quantity          AS "inventoryQuantity",
@@ -777,6 +780,13 @@ export class WarehouseFeeService {
   /** Preview demurrage + storage fees for an inventory item using the most specific active rules. */
   async previewForInventory(inventoryId: string, billingCurrency = 'USD'): Promise<FeePreview[]> {
     const item = await this.loadItem(inventoryId);
+
+    // A backlog registration carries a backdated arrival so the record is
+    // honest about how long the box has sat, but it was never booked through
+    // EDR and is not billed for that history. No rule applies, so no preview —
+    // which also keeps it off the invoice, since invoicing reads this same list.
+    if (item.backlogRegistration) return [];
+
     const rules = await this.feeRuleRepository.findAll({ where: { isActive: true } });
     const now = new Date();
 
@@ -894,6 +904,8 @@ export class WarehouseFeeService {
       trucks.map(async (t) => {
         const item: ItemAttributes = {
           arrivedAt: null,
+          // Truck detention is a per-truck charge, never a warehouse backlog row.
+          backlogRegistration: false,
           gateClearedAt: null,
           releaseDate: null,
           freightType: leg.freightType ?? null,