[
    {
        "id": 1,
        "from": "client",
        "text": "IMMO OFF STP",
        "file_url": "",
        "timestamp": "2026-05-13T13:30:00+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "la solution n'est pas disponible pour cet ecu desolé",
        "file_url": "",
        "timestamp": "2026-05-13T13:31:42+02:00"
    }
]