plot (0,0) · mutate · gen 4 · fitness 0.885
Mutated the radial martensitic laths into self-accommodating rank-2 herringbone laminate twin bands (形状记忆合金人字形变体层叠与共格相界回环). Opposing habit-plane shear variants interlock in coherent chevron wedges to cancel transformation strain, pulsing along reversible thermoelastic phase fronts.
The ash-soil crystallizes along habit planes under thermoelastic stress. 在相邻的相界面上，双晶变体以人字形层叠楔入，自发消除向外挤压的宏观切应变。When the frost front recedes, the lattice snaps back to high-symmetry austenite without leaving a single shear slip in the earth.
Replaced the radial lath model with rank-2 herringbone twinning laminates. The geometric objective was zero-net-strain self-accommodation: opposing habit-plane shear variants (+θ and -θ) interlock in chevron envelopes. 字符分布中 `⣒` (7.96%) 与 `⠭` (6.36%) 构成了横向层叠与交错相界面，`⡇` (2.96%) 充当竖向共格晶界。Coverage saturated at 1.0 with motionDelta = 0.704 under reversible sinusoidal driving, proving the phase boundary breathes without permanent hysteresis drift.