Fourteen application-shaped workloads (JSON, regex, parsing and class
dispatch, sorting, rendering, collection pipelines, async fan-out,
Map/Set graphs, allocation, numeric kernels, exceptions, CSV, and the
two multi-module build benchmark apps on large inputs).
bench:runtime builds each workload with one or two checkouts, refuses to
time any executable whose stdout, stderr, or exit status differs from
Node, interleaves baseline and candidate launches, and reports medians
with bootstrap 95% confidence intervals, binary size, and peak RSS.
