Function save_clustering_plot 

pub fn save_clustering_plot<P: AsRef<Path>>(
    data: ArrayView2<'_, f64>,
    labels: &Array1<i32>,
    centroids: Option<&Array2<f64>>,
    output_path: P,
    config: Option<&VisualizationConfig>,
    output_config: Option<&PlotOutput>,
) -> Result<()>

High-level function to create and save a clustering plot