v1.8.0

This release adds balance indices for measuring tree shape across Rust, Python, and R, and refactors the Rust core to unify vector/matrix dispatch.

New features

• Added balance indices (Sackin index, leaf depth variance, B2 index) across Rust, Python, and R
  APIs for quantifying tree balance/imbalance.

Refactors

• Unified vector/matrix dispatch in the Rust core via a Tree enum, simplifying the API surface.
• Renamed distances module to distance in Rust for naming consistency.

Fixes & CI

• Fixed Windows builds by adding PyO3 generate-import-lib feature.
• Skipped Suggests in CD R builds to speed up the R release pipeline.

Documentation

• Simplified docstring for get_node_depths in Rust.

Dependencies

• Bumped rand to 0.9.3.
• Bumped prefix-dev/setup-pixi (0.9.3 → 0.9.5) and softprops/action-gh-release (2 → 3).
• Routine pre-commit hook updates.

What's Changed

• chore: update pre-commit hooks by @pre-commit-ci[bot] in #184
• build(deps): bump prefix-dev/setup-pixi from 0.9.3 to 0.9.4 in the actions group by @dependabot[bot] in #185
• refactor: rename distances --> distance in rs by @Neclow in #186
• feat(rs): add balance indices (sackin, leaf depth variance, b2) by @Neclow in #187
• feat(py): add balance indices by @Neclow in #188
• docs(rs): simplify docstring in get_node_depths by @Neclow in #190
• refactor: unify vector/matrix dispatch with Tree enum by @Neclow in #191
• feat(r): add balance indices by @Neclow in #192
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #193
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #194
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #195
• build(deps): bump the actions group with 3 updates by @dependabot[bot] in #196
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #197
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #198
• build(deps): bump prefix-dev/setup-pixi from 0.9.4 to 0.9.5 in the actions group by @dependabot[bot] in #199
• build(deps): bump rand from 0.9.2 to 0.9.3 by @dependabot[bot] in #201
• build(deps): bump softprops/action-gh-release from 2 to 3 in the actions group by @dependabot[bot] in #200
• fix(ci): add PyO3 generate-import-lib for Windows builds by @Neclow in #202
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #203
• ci(r): skip Suggests in CD R builds by @Neclow in #204

Full Changelog: v1.7.0...v1.8.0