curl --request GET \
  --url https://api.getgranite.ai/api/analytics/duration-distribution

{
  "stats": {
    "total": 0,
    "avg_ms": 0,
    "min_ms": 0,
    "max_ms": 0,
    "p50_ms": 0,
    "p75_ms": 0,
    "p90_ms": 0,
    "p95_ms": 0,
    "p99_ms": 0
  },
  "histogram": [
    {
      "bucket_start_ms": 123,
      "bucket_end_ms": 123,
      "count": 123
    }
  ]
}