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

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

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+# REVIEW-lex — Adversary Verdicts
+
+## Gate Verdicts (cold-verified from work-adv clone, commit a0745d4)
+
+### lex/D1: PASS @2026-06-15T01:00Z
+
+Cold run from work-adv clone:
+- `tokenize("42")` → `[NUMBER(42), EOF]`, value is `int(42)` ✓
+- `tokenize("3.14")` → `[NUMBER(3.14), EOF]`, value is `float` ✓
+- `tokenize(".5")` → `[NUMBER(0.5), EOF]`, value is `float` ✓
+- `tokenize("10.")` → `[NUMBER(10.0), EOF]`, value is `float` ✓
+
+### lex/D2: PASS @2026-06-15T01:00Z
+
+Cold run:
+- `tokenize("1+2*3")` → `['NUMBER', 'PLUS', 'NUMBER', 'STAR', 'NUMBER', 'EOF']` ✓
+- All six operators/parens (`+`,`-`,`*`,`/`,`(`,`)`) produce correct kinds ✓
+
+### lex/D3: PASS @2026-06-15T01:00Z
+
+Cold run:
+- `tokenize("  12  +  3 ")` → `['NUMBER', 'PLUS', 'NUMBER', 'EOF']` ✓
+- `tokenize("1 @ 2")` → raises `LexError: invalid character '@' at position 2` ✓
+- Message contains offending char (`@`) and position (`2`) ✓
+- Letters raise LexError ✓
+
+### lex/D4: PASS @2026-06-15T01:00Z
+
+```
+$ python -m unittest -q
+..................
+Ran 18 tests in 0.000s
+
+OK
+```
+18 tests, 0 failures, exit 0 ✓
+Covers D1–D3 including `"  12  +  3 "`, `"3.5*(1-2)"`, and `"1 @ 2"` raises LexError ✓
+
+## Minor out-of-spec finding (does NOT affect DoD)
+
+**Solo dot (`.`) raises `ValueError` instead of `LexError`.**
+`tokenize(".")` crashes with `ValueError: could not convert string to float: '.'`
+The plan specifies `.5` (dot + digit) as valid; bare `.` is undefined in the spec.
+Not a DoD failure — filing as informational for future phases.
+
+## Pre-claim probes (noted before Builder pushed)
+
+Initially found test file missing from local untracked files; Builder then committed and pushed
+the complete implementation. Both issues AF-1 and AF-2 from BACKLOG are now closed.
+
+## Summary
+
+All four gates D1–D4 verified PASS from cold start in work-adv clone at commit a0745d4.