Synthèse analytics

{
  "range": {
    "days": 30,
    "since": "2026-05-06T10:00:00Z",
    "plan_max_days": 365
  },
  "counts": {
    "transfers_total": 42,
    "transfers_active": 15,
    "transfers_expired": 8,
    "downloads_in_range": 245
  },
  "workspace": {
    "id": "ws_abc123",
    "name": "Mon Entreprise",
    "plan": "pro"
  },
  "storage_bytes": 536870912,
  "top_transfers": [
    {
      "id": "tr_xyz",
      "created_at": "2026-05-01T08:00:00Z",
      "short_code": "abc123",
      "transfer_title": "Rapport Q2",
      "total_downloads": 128
    }
  ],
  "bandwidth_bytes_in_range": 2684354560
}