The full suite intermittently failed (pass counts 725-735, fail 0-1) under
parallel node --test execution. The reachability integration test asserted
a single-shot 100ms quick-failure bound and big-graph-optimized a 1s load
bound — both are regression smoke checks that can blow on a GC pause or
CPU contention spike while other files' campaigns run concurrently.
Both now re-measure once before failing, keeping the tight regression
signal while eliminating load-induced flakes. Full suite is now stable at
735 pass / 0 fail / 62 skipped across repeated runs.
John Dvorak
f0a310fd7c