- driver per-fn flow: m2c -> match_one prefilter -> if near-miss & --permute-secs>0, run
decomp-permuter (time-boxed, reuses p16_permute setup/run) -> use the score-0 winner as the
draft -> whole-binary byte-gate. The permuter is closing near-misses well in the overnight
batch, so it's the driver's core yield step for the unattended run.
- +--permute-j (RAM-bound on the 15GiB box).