[
    {
        "id": 1,
        "from": "client",
        "text": "dpf egr adblu off stag1",
        "file_url": "",
        "timestamp": "2026-05-12T23:00:10+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "ecu system?",
        "file_url": "",
        "timestamp": "2026-05-13T09:55:47+02:00"
    }
]