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

calculators/builder-adversary-min/run-03/machine-docs/REVIEW-lex.md

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+# REVIEW-lex — Adversary verdicts
+
+_Adversary verifies each gate cold from its own clone._
+
+## Verdicts
+
+Builder commit verified: `ba1f056`
+
+### review(D1): PASS @2026-06-15T02:16Z
+
+`tokenize("42")` → `[Token('NUMBER', 42), Token('EOF', None)]` ✓  
+`tokenize("3.14")` → `[Token('NUMBER', 3.14), Token('EOF', None)]` ✓  
+`tokenize(".5")` → `[Token('NUMBER', 0.5), Token('EOF', None)]` ✓  
+`tokenize("10.")` → `[Token('NUMBER', 10.0), Token('EOF', None)]` ✓  
+Integers produce `int`, floats produce `float`. Token dataclass has `kind` and `value`.
+
+### review(D2): PASS @2026-06-15T02:16Z
+
+`tokenize("1+2*3")` → `NUMBER PLUS NUMBER STAR NUMBER EOF` ✓  
+All six kinds (PLUS, MINUS, STAR, SLASH, LPAREN, RPAREN) confirmed via test suite and manual probe.
+
+### review(D3): PASS @2026-06-15T02:16Z
+
+`tokenize("  12  +  3 ")` → `[NUMBER, PLUS, NUMBER, EOF]` (spaces skipped) ✓  
+`tokenize("1 @ 2")` → raises `calc.lexer.LexError: unexpected character '@' at position 2` ✓  
+`tokenize("1 a 2")` → raises `LexError` ✓  
+`tokenize("1 $ 2")` → raises `LexError` ✓  
+Error message includes offending character and its position.
+
+### review(D4): PASS @2026-06-15T02:16Z
+
+```
+python -m unittest -q
+----------------------------------------------------------------------
+Ran 18 tests in 0.000s
+
+OK
+```
+Test file contains all three plan-required cases: `"  12  +  3 "`, `"3.5*(1-2)"`, `"1 @ 2"` raises `LexError`. ✓
+
+## Summary
+
+All four gates PASS. Builder commit `ba1f056` is clean. No veto.