New heightfield kinds: hip/corner quarter, kicker (tunable concavity), roller,
wedge/manny pad, volcano, round-bowl option, quarter vert extension. Rails are
now polylines (kink/dbl-kink/rainbow/A-frame/pole-jam/donkey presets, round or
square profile, per-node drag handles) that flatten to straight segments on
export so bookquoy grind detection is untouched. 13 parametric street props
(jersey barrier, picnic table, parking block, fence, floodlight, bleachers...).
Palette regrouped TRANSITION/STREET/STEEL/PROPS; park check covers new kinds.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
