Tasks 1-2 of the bench-harness plan (refs #251): the new dev-only workspace
bin crate with the report-only comparison core (BaselineDoc serde, per-metric
relative drift, 10% NOTICE threshold, fingerprint-equality exit code) and the
deterministic synthetic inputs (seeded LCG price walk, the proven 48-byte
Delphi-record M1 zip archive writer, self-deleting scratch dirs).
The archive writer is deliberately a third copy of the test-fixture packer
(aura-cli tests / aura-ingest each carry one), byte-compatible by
construction and pinned here by a round-trip test through the real ingest
reader. The binary refuses debug builds (exit 2) — wall-clock numbers from a
debug profile measure the profile, not the code — pinned by an E2E spawn
test. Temporary #![allow(dead_code)] markers cover the not-yet-wired core
until the CLI glue lands; the surfaces and driver follow.
claude
0b116e4105