fix(warehouses): Store no longer strands an import item in STORED

READY_FOR_PICKUP allows STORED (park an import item back into storage), but
STORED allowed only RESERVED / READY_FOR_LOADING - so readyForPickup() hit
assertTransition(STORED, READY_FOR_PICKUP) and threw. The item could never
return to pickup, and getNextInventoryAction returned null for an import STORED
item, leaving the row with no action at all.

- allow STORED -> READY_FOR_PICKUP
- an inspected import STORED item now advances to ready-for-pickup

readyForPickup() still rejects non-IMPORT inventory, so the new edge cannot be
reached from the export flow.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/edr-freight-api/src/modules/warehouses/entities/warehouse-inventory.entity.ts

@@ -36,7 +36,9 @@ export const WAREHOUSE_INVENTORY_TRANSITIONS: Record<WarehouseInventoryStatus, W
   RECEIVED: ['STORED', 'READY_FOR_PICKUP'],
   // Reserve is retired from the operator flow — a stored export item advances
   // straight to loading prep. RESERVED kept for any in-flight/legacy items.
-  STORED: ['RESERVED', 'READY_FOR_LOADING'],
+  // READY_FOR_PICKUP is the way back out for an IMPORT item that was parked in
+  // storage from READY_FOR_PICKUP; without it, Store is a one-way door.
+  STORED: ['RESERVED', 'READY_FOR_LOADING', 'READY_FOR_PICKUP'],
   RESERVED: ['READY_FOR_LOADING'],
   READY_FOR_LOADING: ['LOADED'],
   LOADED: ['DISPATCHED'],