MLX was declared as a darwin-only dependency but no source code
imports it — runtime is NumPy (Python path) + Rust/Rayon
(CORE_BACKEND=rust). Per ADR-0020, third-backend work
(GPU / JAX / MLX) is explicitly deferred until both Python and
Rust paths are mature.
Smoke suite (27/27) confirms no path depends on MLX. Re-add if
and when a deferred Apple-Silicon GPU backend is opened.
* Make core CLI help robust and intuitive
* Package runtime support modules for core CLI
* Add CLI help and doctor tests
* Fix CLI trace help and pack listing
* Export language pack listing helper
* Bootstrap repo root for console runtime imports
* Align trace formatter with Proposition schema
* Cover real trace payload formatting
