[
    {
        "id": 1,
        "from": "client",
        "text": "Stage1",
        "file_url": "",
        "timestamp": "2026-05-25T10:55:41+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "fichier pas original deja modifié",
        "file_url": "",
        "timestamp": "2026-05-25T11:46:38+02:00"
    }
]