Captures the @004abb40 decode (base head + Mover-family branch with the
separating gate and mech-vs-mech ram + CulturalIcon branch with the 0x8000
stopping flag and the 0.00123f walk-through sentinel + the material tail)
before implementation, so the analysis survives session boundaries.
Also records two hazards BT411 fought that do NOT apply to this engine --
the compounded-reflection economy guard (our ProcessCollisionList restores
velocity per contact, MOVER.CPP:1203) and the AlarmIndicator ODR split --
plus the ledger of master-perf pieces currently re-hosted in Mech::Simulate
at STAGED seams, for the day mech4.cpp exists and they move home.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>