GET /api/v1/transactions/suspicious/summary

{
  "success": true,
  "message": "Summary retrieved successfully",
  "data": {
    "total_suspicious": 45,
    "pending_review": 20,
    "under_review": 10,
    "cleared": 12,
    "confirmed_fraud": 3,
    "by_severity": {
      "low": 15,
      "medium": 18,
      "high": 10,
      "critical": 2
    },
    "total_amount_flagged": 15000000,
    "avg_risk_score": 65.5,
    "date_range": {
      "from": "2024-12-15",
      "to": "2025-01-15"
    }
  },
  "timestamp": "2025-01-15T10:30:00Z"
}