[
    {
        "id": 1,
        "from": "client",
        "text": "i need flexfuel",
        "file_url": "",
        "timestamp": "2026-05-04T10:39:18+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "?????????????",
        "file_url": "",
        "timestamp": "2026-05-04T10:42:39+02:00"
    }
]