Brummel
17ac4c49b7
Four tasks: scaffold module (token-replace templates derived from the cycle-0102 fixture, argv validation exit 2, emit + best-effort git init exit 1), CLI wiring (Command::New + dispatch + the main() load-bypass guard), the authoring-loop e2e (scaffold -> cargo build -> aura run twice bit-identical + four refusals incl. nested-unbuilt), full regression gate. refs #180