<supernote-viewer> demo

Standalone build of the <supernote-viewer> custom element from the supernote-obsidian-plugin project (issue #183) - runs entirely in this page, with no Obsidian involved. It opens the bundled rtr.note sample automatically; pick a .note file from your Supernote device to replace it.

Build the bundle first: this page loads supernote-viewer.js from ../dist/ (serving the project root), ./dist/, or next to this page (serving this directory on its own, bundle copied in) - whichever exists. It isn't checked into the repo: run npm run build:webcomponent from the project root, then serve over http(s) (module scripts can't load from a file:// URL) - e.g. npx serve . from the project root, then open /demo/.