Tokens that never reach a UI are gossip. A pipeline is what turns them into something a browser can render.
The tokens.json is already loaded into `window.__tokens`. Your job: walk it and emit CSS custom properties on :root.
Path → var name: dots become hyphens. `color.brand.primary` becomes `--color-brand-primary`.
A token is any node with a `$value`. Skip groups, ignore `$type` and `$description` keys, and don't worry about aliases this run — every $value here is a literal.