Star-cruise polish: limbs off the body, contrasting instruments, no floor shots

LIMBS NO LONGER INTERSECT THE BODY — pushRootToSurface seats arm/leg/tentacle roots onto the torso surface (coreR*1.05), and keepOutOfCore clamps the IK target(copy)/elbow/wrist outside a coreR*1.02 keep-out shell

CONTRASTING INSTRUMENT COLOURS — instColBase rotates the alien's per-alien skin hue 180deg (complementary) + high sat/lightness, on both instrument body + accents, so instruments pop as separate objects (hue distance ~0.5).

NO FROM-BELOW SHOTS — raised the low auto-cam pitches to look DOWN at the band, plus a hard FROM-BELOW GUARD that lifts any shot whose resolved eye height would fall below band eye-level.

• Fixed the stale test/flight-run.js assertion (removed-3D-ship descent -> the camera's own continuous descent, z 26->4.4, no teleport).

▶ Play it: Barometric Stampede — the genre that is mostly drums, so the kit has nowhere to hide https://stellate.app/?genre=jungle&seed=3015&path=1718.20504,1737.20537,1699.20537&xdur=13.122

03f67b1 https://github.com/aboard-io/stellate/commit/03f67b17551b7cee1057f835768dd81cb1e1c85e