First release that installs and type-checks cleanly outside a bundler.

Added
- Framework-agnostic mount: mountVisualEditor() boots the editor into its own
  React root, so Vue, Angular, Svelte, Astro and plain-HTML hosts can run it.
- /standalone entry with React bundled in, for hosts with no React installed.
- Vue 3 and Angular component detection: the payload carries component ancestry
  and live props/inputs on those hosts too.
- Design-token colour picker: colour rows bind to the page's own custom
  properties, so the payload says var(--brand) rather than a matching hex.

Fixed
- Published types resolve for every consumer: typesVersions covers the classic
  moduleResolution "node", and src ships so declaration and source maps resolve.
- pnpm build works from a clean checkout.
- The Custom CSS suggest menu no longer goes see-through while typing.

Tagged retroactively. This commit is the one that was published as 0.2.0:
verified by unpacking the published tarball and matching its src/ against the
tree here.