Records the micro + macro baseline (Apple M4, macOS 26.5, refc, Nim
2.2.4) with both scenarios' verbatim output, CSV, per-node decode/hash
breakdown, and the Phase 1 acceptance verdict. Validates the analysis:
receiver decodes the same proto bytes 4x, aggregate 6 decodes / 5 hashes
per relayed message; micro determinism 4.03% (<5%).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>