[
    {
        "id": 1,
        "from": "client",
        "text": "coldstart plus sondes off cat",
        "file_url": "",
        "timestamp": "2026-05-25T11:23:47+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "fichier crypté ouincorrecte ( pas de solution)",
        "file_url": "",
        "timestamp": "2026-05-25T11:31:32+02:00"
    }
]