Carriage seated animation

Source: SPE_Sit with your hands on your knees.json
Display name: Сидеть с руками на коленях
Author metadata: SPEmotes
Source pack: installed Votive_1.21.1/emotes, 2026-09-16.

The source keyframes and author metadata are preserved unchanged. This resource is
outside the public emotes directory; it is a private carriage pose, not a new menu entry.
CarriageSeatAnimation starts at returnTick (already seated), replaces the standing
root translation with the carriage seat anchor, and keeps its bent legs during
standing Emotecraft gestures. Manual seated clips retain their original leg spacing,
rotations, pivots, scales and bends while the global seat anchor stays fixed.
The driver's resting arms hold the reins instead.
