Version bump for the 0.2.0 release (version is read from Cargo.toml via maturin).

Once merged I'll push the v0.2.0 tag, which triggers the wheel/sdist build and PyPI publish.

Changes since v0.1.0

• Core data-structure overhaul: interned simplices, facet adjacency, incremental hull #5 Core data-structure overhaul: interned simplices, facet adjacency index, incremental hull — 2-8× faster insertion, fixed the O(n²) hull-heavy bottleneck
• Robustness: validate cavities before mutating; repair with exact predicates or reject atomically #6 Robustness: cavities are validated before mutation and repaired with exact predicates (Shewchuk, via the robust crate) or rejected atomically — corrupted end states on degenerate input went from 99/400 stress runs to 0/400. Behavior change: insertions that previously corrupted state now raise AssertionError/ValueError and leave the triangulation untouched
• Complete the drop-in API for neighbor-aware losses; numpy fast paths in the PyO3 layer #7 Drop-in API completed for adaptive's neighbor-aware losses (curvature_loss_function() etc.): get_vertex, get_neighbors_from_vertices, get_simplices_attached_to_points, get_opposing_vertices, get_face_sharing_neighbors, None pass-through in get_vertices, set operators on SimplicesProxy; plus numpy fast paths
• Readability refactor: kill the error-conversion boilerplate and wrapped chains #8 Readability refactor (−108 lines, behavior-identical)
• docs: refresh README benchmarks and document the robustness contract #9 README benchmark refresh: 40-291× standalone vs the Python reference, 3.7× end-to-end in LearnerND