curl --request POST \
  --url https://api.fincept.in/quantlib/risk/backtest \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "actual_returns": [
    -0.008,
    0.012,
    -0.018,
    0.005,
    -0.032,
    0.009,
    -0.015
  ],
  "var_estimates": [
    0.025,
    0.025,
    0.025,
    0.025,
    0.025,
    0.025,
    0.025
  ],
  "confidence": 0.95
}
'

{
  "success": true,
  "data": {
    "exceptions": 12,
    "total_observations": 252,
    "exception_rate": 0.0476,
    "expected_exceptions": 12.6,
    "kupiec_lr_stat": 0.342,
    "kupiec_p_value": 0.558,
    "christoffersen_stat": 1.234,
    "christoffersen_p_value": 0.266,
    "traffic_light": "green"
  }
}