- Replace all thin raycast climb probes with capsule-width SphereCasts:
fixes drop on thin boards (mid-face contact never lost, top-out only
fires at the real top edge) and edge flicker on curved surfaces
(continuous contact normal instead of per-frame face flips)
- Remove WallProbeTangentSamples fan fallback (obsolete with SphereCasts)
- Collapse WallInFront/WallPresentAtOffset/WallHitAt into WallPresentAt,
inline ApplyMeshOffset wrapper
- Trim redundant comments, keep non-obvious rationale and tooltips
- No serialized fields removed or renamed (prefab values intact)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>