Publish the isolated browser-safe proof-agent benchmark surface.
- adds @hotdocx/emdash/benchmark with strict canonical case, run, and
report interchange; - provides a fixed six-track, ten-case corpus with nine freshly accepted
owner baselines and one honest ambiguity abstention; - retains the existing Core, authoring, and workspace entries and the
package's no-bin, no-install-hook, and no-runtime-dependency policy; and - invokes no provider, model, network, filesystem adapter, or proof server.
Reference attempts are reproducible baselines, not proof authority,
committed source, model-performance measurements, or a leaderboard.