SirStone
39c90fd930
The picker scored candidates on pathMaxHeat alone and then drew uniformly among the survivors, so a mirror-side tile was as likely as a straight-ahead one. Added a continuous turn cost as a DRAW WEIGHT applied only after the hard heat filter: w = max(1, round(1 + TR_TFIL_TURN_BIAS * (1 - max(0,|turn| - REF)/180))) - TR_TFIL_TURN_BIAS (default 0) is the odds ratio straight-ahead vs 180 deg; TR_TFIL_TURN_REF_DEG (default 45) is where the penalty starts. Both default-off-effect: the default-path golden in test_tfil_commit_env.nim is unchanged and still passes. - Turn cost is NEVER folded into the heat score. The filter stays hard. - The draw stays random (j51 measured an argmin worse); every weight is floored at 1, so the pool can never be emptied and bias 0 is exactly the shipped uniform draw. - |turn| now travels on the ScoredTile, and the commit log gained turn / minturn / promote so a caller can measure the regret of the draw. Guards: 51 -> 66 checks (an absurd 99:1 bias never rescues an over-threshold tile; mean |turn|, draw regret, >90 and mirror-side shares all fall; path heat does not rise). env_report + .env.example updated.