Follow-up to #4345 / #4145 per maintainer guidance from @bflatastic.
- In `crates/effects/src/geometry.rs` & `crates/effects/src/reshape.rs`:
- Implements `optimize_geometry_effects`: reorders pure-translation Transform effects
with copies after a terminal round-join Offset Path effect when the effective style is safe
(NonZero fill and no stroke).
- Offsetting a union equals the union of offsets for round (Minkowski) offsets; moving
pure-translation copies after the terminal offset evaluates Offset Path once on the base
geometry rather than over dozens of multiplied copies, turning O(copies * segments) planar
sweep explosion into a single fast offset plus lightweight affine copies.
- Safely commutes across multiple consecutive pure-translation Transform effects.
- Preserves exact visual geometry by leaving miter, bevel, EvenOdd, stroked, or non-terminal
effect stacks in their original order.
- Added comprehensive unit and regression tests in `crates/effects/src/tests.rs`.
- Added contributor entry in `contributors/people.toml`.
el-j