[
    {
        "id": 1,
        "from": "client",
        "text": "lambda off,  O2 SENSOR CIRC, BANK1-SENSOR2, P0140",
        "file_url": "",
        "timestamp": "2026-05-15T12:04:22+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "lambda_off_dtc_off",
        "file_url": "https:\/\/1clicktune.com\/download.php?t=T20260515_120422_4BD3AE&f=SOL_20260517_104848_lambda_dtc_ORG_VOLKSWAGEN_GOLF_4_-1J-_1_4L_16V_Marelli_IAW_4MV_29F400BB_Flash__1_.bin",
        "timestamp": "2026-05-17T10:48:48+02:00"
    }
]