Throwaway diagnostic edit on aux_horizon_update_kernel.cu. Tests whether
the adaptive horizon's self-defeating loop (WR=50% → H~2 → noise horizon →
53.5% acc → WR=50%) is the actual bottleneck. If aux_dir_acc rises to
58%+ at fixed H=30, bootstrap failure confirmed and the proper fix is
constraint-based (min hold time during exploration). Audit-doc updated.
DO NOT merge to mainline — branch is throwaway after the experiment.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
c78c4766ca