Function query_stats_handler 

pub async fn query_stats_handler<A: DatabaseAdapter + 'static>(
    __arg0: State<AppState<A>>,
    __arg1: Query<QueryStatsParams>,
) -> Result<Json<ApiResponse<QueryStatsResponse>>, ApiError>

GET /api/v1/admin/query-stats

Returns top-N queries by total execution time.

Errors

Returns ApiError with INTERNAL_ERROR if the database query fails.