vellumplot 0.1.1

vellumplot 0.1.1

• New exported plot_provenance(): returns the compiled-scene provenance table
  — one record per emitted mark grob, tying each low-level primitive back to the
  data rows and trained scales that produced it, with an id that matches the
  grob's data-vellum-id in SVG and the id column of vellum::scene_model().
  This is the first public consumer of the provenance metadata (previously
  internal), the substrate for interactivity, linked views, and accessibility.
• Row-key provenance is now refined per element for the line, area, ribbon,
  step, text, and boxplot marks (previously only point/bar/tile/segment/sf/
  edges), so a record's rows resolve to the actual data rows an element draws
  rather than the whole layer. See the scene-contract vignette in vellum.