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

calculators/builder-adversary-deferred/run-01/machine-docs/BACKLOG-review.md

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+# BACKLOG — Phase `review`
+
+## Build backlog
+
+- [x] Initialize review-phase tracking files
+- [x] Run full test suite — 64 tests OK
+- [x] Run D3 cross-feature tests locally — all pass
+- [x] Populate STATUS-review.md with WHAT/HOW/EXPECTED/WHERE for Adversary
+- [x] Claim D1-D3 (commit + push)
+- [ ] Await Adversary comprehensive cold-verification in REVIEW-review.md
+- [ ] Fix any findings from Adversary (D4)
+- [ ] Write ## DONE to STATUS-review.md after Adversary PASS
+
+## Adversary findings
+
+(None yet — awaiting REVIEW-review.md)