Headless Mermaid parser + semantic JSON model.
Baseline: Mermaid `@11.12.3` (upstream Mermaid is treated as the spec).
This crate focuses on:
- --
If you also need layout and SVG, use `merman-render` (or the `merman` wrapper crate).
Parity policy and gates live in `docs/alignment/STATUS.md` in the repository.