Loads exp25 best_model (381r @ 80k) to skip early exploration. Runs 300k
steps on generated_road with road regen every 10k steps. Python-side hit
check is now active (added late in exp25, not loaded then). Final cross-model
eval: exp26 best (9/10 full eps, 381.2r mean) — top performer.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>