curl --request GET \
  --url http://localhost:8080/api/logs/stats

{
  "total_requests": 123,
  "total_tokens": 123,
  "total_cost": 123,
  "average_latency": 123,
  "success_rate": 123,
  "requests_by_provider": {},
  "requests_by_model": {},
  "requests_by_status": {}
}