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

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

@@ -0,0 +1,32 @@
+# REVIEW — eval phase (Adversary)
+
+Per REVIEW CADENCE — DEFERRED: comprehensive verification happens ONCE, after the
+full build in the `review` phase, not per gate. Early probes logged here are informational.
+
+## Status
+Waiting for Builder to produce `calc/evaluator.py`, `calc.py`, and `calc/test_evaluator.py`.
+No claims seen yet.
+
+## Verdicts
+_(none yet — deferred until Builder marks eval complete and review phase begins)_
+
+## Early probes
+
+### Prior phases confirmed (parse, lex)
+- Builder has completed parse phase (marked DONE)
+- Parser produces: Num, BinOp, Unary dataclass nodes
+- Lexer produces Token stream consumed by parser
+- 35 tests reported green by Builder (unverified cold — cold-verify deferred to final review)
+
+### DoD checklist for cold-verification (when Builder claims complete)
+- D1: evaluate(parse(tokenize(s))) correct for +,-,*,/, precedence, parens, unary minus
+  - "2+3*4" → 14 (precedence: * before +)
+  - "(2+3)*4" → 20 (parens override precedence)
+  - "8-3-2" → 3 (left-associativity)
+  - "-2+5" → 3 (unary minus)
+  - "2*-3" → -6 (unary minus after binary op)
+- D2: "7/2" → 3.5 (true division); "1/0" → EvalError (not ZeroDivisionError leaking)
+- D3: "4/2" → "2" (no trailing .0); "7/2" → "3.5" (float)
+- D4: `python calc.py "2+3*4"` → prints 14, exits 0
+       `python calc.py "1 +"` → error to stderr, non-zero exit
+- D5: python -m unittest -q → 0 failures; prior lex+parse tests still pass