[
    {
        "id": 1,
        "from": "client",
        "text": "slmbesoin dtc DF010",
        "file_url": "",
        "timestamp": "2026-05-07T16:36:19+02:00"
    },
    {
        "id": 2,
        "from": "admin",
        "text": "salam envoies dtc en PXXXX PAS DFXXX",
        "file_url": "",
        "timestamp": "2026-05-07T16:41:00+02:00"
    }
]