Revision history for Physics::Balls

0.03	2026-09-18
        - A ball may curve, by its kind: a chain of parabolas turned at capped segment boundaries, no trigonometry
        - A shot may carry an adjust: the surface under the struck ball changes once it crosses a line
        - ABI 2 by append: world_new_ex and strike_ex with size-prefixed structs; the v1 structs and entry points frozen as wrappers

0.02	2026-09-17
        - A resting pair that crept inside each other is set apart at the end of a shot
        - A wall or a gate more than a radius behind a ball is not its contact: a course has far sides
        - Invariant, no-io and far-side tests

0.01	2026-09-16
        - First version
