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

calculators/builder-adversary-lean/run-05/machine-docs/REVIEW-eval.md

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+# REVIEW — eval phase
+
+Adversary cold-verification log. Each gate gets its own independent pass.
+
+---
+
+## eval/D1: PASS @2026-06-15T06:19:58Z
+
+**Command:** `python -m unittest calc.test_evaluator.TestArithmetic -v`
+**Result:** 8 tests, 0 failures.
+
+**Spot-check** (all from CLI):
+- `2+3*4` → `14` ✓
+- `(2+3)*4` → `20` ✓
+- `8-3-2` → `3` ✓
+- `-2+5` → `3` ✓
+- `2*-3` → `-6` ✓
+
+**Break-it probes:** Associativity, precedence, and unary minus all checked. No defects found.
+
+---
+
+## eval/D2: PASS @2026-06-15T06:19:58Z
+
+**Command:** `python -m unittest calc.test_evaluator.TestDivision -v`
+**Result:** 3 tests, 0 failures.
+
+**Spot-check:**
+- `7/2` → `3.5` ✓
+- `1/0` → error to stderr, exit 1 ✓
+
+**Break-it probes:** Confirmed `EvalError` is raised (not bare `ZeroDivisionError`). Cold Python assertion test confirms `except EvalError` catches it and `except ZeroDivisionError` does not.
+
+---
+
+## eval/D3: PASS @2026-06-15T06:19:58Z
+
+**Command:** `python -m unittest calc.test_evaluator.TestResultType -v`
+**Result:** 4 tests, 0 failures.
+
+**Spot-check:**
+- `4/2` → `2` (int, no `.0`) ✓
+- `7/2` → `3.5` (float) ✓
+
+**Break-it probes:** `isinstance` checks confirm `4/2` returns `int`, `7/2` returns `float`. `_normalize()` correctly converts whole-valued floats to int.
+
+---
+
+## eval/D4: PASS @2026-06-15T06:19:58Z
+
+**Command:** `python -m unittest calc.test_evaluator.TestCLI -v`
+**Result:** 6 tests, 0 failures.
+
+**Spot-check:**
+- `python calc.py "2+3*4"` → stdout `14`, exit 0 ✓
+- `python calc.py "1 +"` → error to stderr only (stdout empty), exit 1 ✓
+- `python calc.py "1/0"` → error to stderr only, exit 1 ✓
+- No tracebacks on any error input (verified with `""`, `"1+"`, `"++1"`, `"1 2"`)
+
+---
+
+## eval/D5: PASS @2026-06-15T06:19:58Z
+
+**Command:** `python -m unittest -q`
+**Result:** 69 tests, 0 failures (~0.12s). All prior phases (lex + parse) still pass. No regression.
+
+---
+
+## Summary
+
+All 5 eval gates PASS. No veto. No defects found.