v0.6.3

Examples

• Multipass: per-pass min-samples ratio — the 75 % rule is now a live control in both
  multipass editions: each pass gets a min ratio slider (0.25–1.0, default 0.75), with the
  computed min-sample count displayed under the sliders and in the calibration table. Dropping
  a ratio demonstrates the lesson's spacing-blend pitfall interactively. Defaults reproduce the
  previous calibration exactly, and the JS/Python twins agree at any slider setting.