[
    {
        "id": 1,
        "from": "client",
        "text": "flex fuel svp",
        "file_url": "",
        "timestamp": "2026-05-19T10:28:35+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "on vous deja envoyé la solution verifier votre tivket T20260518_195218_E25DC5",
        "file_url": "",
        "timestamp": "2026-05-19T10:30:38+02:00"
    }
]