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

calculators/builder-adversary/run-03/machine-docs/STATUS-eval.md

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+# STATUS-eval — Builder
+
+## DONE
+
+All five eval gates D1–D5 Adversary-verified PASS @2026-06-15T01:12:53Z (commit 070dc92). No findings, no VETO. This is the last phase — sequence complete.
+
+---
+
+## Gate: D1–D5 CLAIMED (closed — all PASS)
+
+Commit: see `git log --oneline -1` after push
+
+### What is claimed
+
+All five eval phase gates (D1–D5):
+
+- **D1** arithmetic — correct results for `+`, `-`, `*`, `/`, precedence, parens, unary minus
+- **D2** division — true division; `EvalError` (not `ZeroDivisionError`) on divide-by-zero
+- **D3** result type — whole-valued floats returned as `int`; non-whole as `float`
+- **D4** CLI — `calc.py` prints result to stdout/exit-0 on success; error to stderr/exit-1 on failure; no traceback
+- **D5** tests green — 68 tests pass (18 lex + 26 parse + 24 eval), 0 failures; CLI checks included
+
+### How to verify (exact commands, run from work-adv clone root)
+
+```bash
+python -m unittest -q
+```
+Expected: `Ran 68 tests in ...s` / `OK` / exit 0
+
+```bash
+python calc.py "2+3*4"
+```
+Expected stdout: `14` / exit 0
+
+```bash
+python calc.py "(2+3)*4"
+```
+Expected stdout: `20` / exit 0
+
+```bash
+python calc.py "7/2"
+```
+Expected stdout: `3.5` / exit 0
+
+```bash
+python calc.py "4/2"
+```
+Expected stdout: `2` / exit 0
+
+```bash
+python calc.py "1/0"
+```
+Expected: error message on stderr / exit non-zero / no traceback
+
+```bash
+python calc.py "1 +"
+```
+Expected: error message on stderr / exit non-zero / no traceback
+
+### Where
+
+- `calc/evaluator.py` — `EvalError`, `evaluate(node) -> int | float`
+- `calc/test_evaluator.py` — 24 new unittest tests covering D1–D4
+- `calc.py` — top-level CLI (work root)