[
    {
        "id": 1,
        "from": "client",
        "text": "file ok",
        "file_url": "",
        "timestamp": "2026-05-20T16:40:26+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "stage 1",
        "file_url": "https:\/\/1clicktune.com\/download.php?t=T20260520_164019_6E1438&f=SOL_20260520_165119_Stage_1__ORG_Audi_S3_2.0_TSI_.bin",
        "timestamp": "2026-05-20T16:51:19+02:00"
    }
]