BatchStatusResponse

{
    "success": true,
    "data": {
        "batchId": "665a1f4e2c3b7800129dce01",
        "status": "processing",
        "totalItems": 100,
        "processedItems": 50,
        "progress": 50
    },
    "meta": {
        "requestId": "string"
    }
}