Changes in version 0.1.0 (2026-07-19)                  

  - Initial development version.
  - Added raster input, validation, preparation, terrain metrics,
    process groups, transects, isobath corridors, summaries, modeling
    helpers, plotting helpers, synthetic example data, tests, README,
    and vignettes.
  - Added reduced real bathymetry examples from the southwest Puerto
    Rico shelf margin near La Parguera, Puerto Rico, plus sampling
    rectangles.
  - Improved hillshade-supported terrain maps, site-location
    documentation, and scientific examples for README, vignettes, and
    visual proof.
  - Added surface-oriented transect defaults, richer cross-section and
    PCA plots, citation metadata, and custom metric/process-group
    extension helpers.