v0.4.0

What's Changed

This release improves the axis tick rendering for readability, and
substantially expands the PyMC integration with nested prior groups,
initial-selection support, and more robust distribution parsing.

Axis & rendering

• Major/minor tick system — labeled major ticks plus unlabeled minor
  gridlines, so axes read cleanly at any scale.
• Continuously scale tick density with label width (damped for
  high-precision scales) — reasonable ranges show more numbers, while
  extremely large/small scales stay sparse. No hard tiers means no jarring
  tick-count jumps when panning/zooming.
• Uniformly spaced, omitted-when-crowded minors — minors subdivide
  proportionally to major density (dropped when majors are dense) and land on
  an even lattice, fixing uneven or missing minor gridlines.
• Precision & formatting — tick labels keep their own step precision, and
  comma-formatted values (e.g. 10,000,000) are preserved instead of flipping
  between commas and exponential notation. Exponential is reserved for
  genuinely astronomical values.

PyMC integration (modist.pymc)

• Nested tab groups for 2-D+ priors — the first dimension becomes outer
  tabs and the second becomes inner tabs (e.g. dims=("geo", "product") →
  outer tabs A/B/C, inner tabs 1/2/3/4); third+ dims flatten into composite
  inner labels.
• Robust distribution parameter parsing — unwraps pymc's op-input
  transforms (DimShuffle broadcasts, Elemwise(reciprocal)) so per-element
  seeding works with dims'd models, and Gamma's rate/scale parameterization
  is parsed correctly.

UI (modist.ui)

• selected / selected property — open a specific tab initially via a
  string (flat) or a nested path (e.g. ["alpha", "north"]), and read the
  currently selected tab path from the panel.
• elements and selected properties exposed on Priors panels, excluding
  internal layout bookkeeping.

Tests & demos

• New ticks integration probe covering tick density, comma/decimal
  formatting, origin labels, and uniform minor spacing across PyMC-relevant
  scales.
• Expanded pymc and ui test coverage; updated demo defaults.

New Contributors

No new contributors this release.

Full Changelog: v0.3.0...v0.4.0