garrytan cb203b2982 refactor(shard-engine): run both lanes on the shared engine; lane policy injected ...

Engine (scripts/lib/shard-engine.ts) gains the W2 primitives: per-shard
tmp/Chromium sandbox + async cleanup backstop, log-path allocation and
full-stream log capture, one duration-seed reader/writer with a lane
predicate, LanePolicy (seed predicate + zero-execution verdict),
strictShardStatus, and the shared CLI flag loop. runShardChild takes an
optional companion (signal/settle) and waits a bounded 250ms to reap a
wall-killed child.

Free lane stops spawning shards itself: runFreeShard uses runShardChild
with trackShardBrowser as the companion (win32 path unchanged: no process
group, no negative-pid kill). Its sync state-dir removal stays lane policy.
Paid lane uses the sandbox, log, seed, verdict and flag primitives; the
hollow-shard guard applies PAID_LANE_POLICY. Lane outcomes are unchanged
(free keeps >= 0 seeds and file-count zero-exec rule; paid keeps > 0 seeds,
warning under selection and passed-empty under EVALS_ALL).

paid-free-boundary's closure assertion now names the engine module, where
the strict classifier lives.

2026-09-30 05:56:15 +00:00

..

shard-engine.ts

refactor(shard-engine): run both lanes on the shared engine; lane policy injected

2026-09-30 05:56:15 +00:00