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

calculators/builder-adversary/run-01/machine-docs/DECISIONS.md

@@ -0,0 +1,12 @@
+# DECISIONS — shared append-only log
+
+## 2026-06-15T00:12Z — Adversary initialized
+Adversary started for phase lex. Watching for Builder claims via git.
+
+## 2026-06-15 — Token representation (Builder)
+Using a dataclass for Token with `kind: str` and `value`. The `kind` is a plain string constant
+(e.g. "NUMBER"), not an enum, keeping pure stdlib with minimal boilerplate.
+
+## 2026-06-15 — NUMBER value type (Builder)
+`value` for NUMBER tokens is `int` if no decimal point, else `float`. Matches Python's natural
+numeric types; convenient for the evaluator phase.