an.adapters.cutout.fidelity

Moved to an.stage.fidelity (an#247); this path is a LIVE alias of it.

The 2D stage runtime is the first engine, outside the core’s import firewall (ADR 0001 decisions 5 and 14). Every name of the new module is reachable here, and rebinding one here (a bench lever, monkeypatch) rebinds it there, where the code runs (an._shims.alias_module()).