Fixes the review findings on the work-budget change:
- unify the measured npm time range to 137-205 s in the note's problem
statement, which had carried the older 153-190 s range
- correct the peer-edge share to about three quarters (1874 of 2524),
which the sentence had called two thirds
- state the ratchet threshold as the packages-times-edges product, about
12% in packages and edges together
- derive NPM_HANG_GUARD_MS from MAX_RESOLUTION_WORK_UNITS so a raised
budget cannot shrink the guard's headroom, and state the guard's
guarantee as covering a runner four times slower than the measured host
- name the cost side of the hang guard in the note's consequences
The Dependency layout lane failed whenever the npm child process exceeded
a hardcoded 300 s deadline. That deadline measured the runner rather than
the graph: the same layout resolves in 137-205 s on an idle developer host
and exceeded 300 s on CI while the placement assertion reported no error,
so the failure carried no information about what had grown.
The gate now bounds the verified graph by resolution work units,
dshPackagesPerVersion * checkedDshEdges against MAX_RESOLUTION_WORK_UNITS,
and keeps the wall clock only as a hang guard derived from that budget.
Growth fails with the graph's own measured counts on any runner.
The resolution cost itself is unchanged. Measurement attributed 99.3% of
it to npm's peer-conflict placement, and cache reuse, graph splitting and
the placement flags were measured and rejected.