{
  "event": "ticket.created" | "ticket.status_changed" | "ticket.assigned",
  "payload": {
    "ticket": { "id": 12, "numero": "T-2026-00012", "titre": "...", "statut": "nouveau",
                "priorite": "haute", "client_societe": "...", "assignes": [...] },
    "actor": { "id": 1, "nom": "..." }
  },
  "timestamp": "2026-05-07T10:30:00.000Z"
}