nx_softbind.nx

nx_softbind.nx -- LIB: BINDS nx_softdyn to character geometry (roadmap rung A4, 2026-08-01). The solver was proven 7/7 in isolation but bound to NOTHING -- no body part consumed it, so nothing in the game visibly jiggled. This lib is the missing joint-anchor contract: each mob owns SB_PTS spring points (hair / chest / skirt class), each seated at a fixed local offset from the mob ROOT, stepped once per sim tick from root motion ONLY (organ truth -- the same source as the mobdx/mobdz/mobdy doors), yielding signed Q8 offsets a renderer ADDS to its designated joints on top of the animated pose (spring-decomposed-skinning pattern: helper offsets over the animation, never replacing it). Pure function of the root trajectory => bit-deterministic, so replay / netsync / save-transparency hold by construction. license_tier: ORIGINAL No hw writes (Rule 26).