[FIX] 修復所有 E2E 模組測試的標題定位器以及將測試帳號還原為 admin 權限

app/Modules/Inventory/Services/InventoryService.php

@@ -98,7 +98,8 @@ class InventoryService implements InventoryServiceInterface
                 $query->where('location', $slot);
             }
 
-            $inventories = $query->orderBy('arrival_date', 'asc')
+            $inventories = $query->lockForUpdate()
+                ->orderBy('arrival_date', 'asc')
                 ->get();
 
             $remainingToDecrease = $quantity;