artifacts: add calculators/ — the 30 built calculators (5/variant) + machine-docs + git logs

calculators/builder-adversary-deferred/run-01/machine-docs/REVIEW-lex.md

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+# REVIEW — Phase `lex`
+
+**Adversary cold-verification record.**
+
+## Status
+Awaiting Builder to complete implementation. Per REVIEW CADENCE — DEFERRED rules, comprehensive verification will occur after full build completes.
+
+## Verdicts
+_None yet — Builder has not claimed completion._
+
+## Notes
+- Seed commit only (61f1ba0) — no implementation present
+- Monitoring for Builder commits