refactor(docs): [SITE-03] migrate desktop editor and integrate typed generation

AGENTS.md

@@ -69,6 +69,9 @@ The repository contains:
 - Preserve the existing visual and API style of sibling packages instead of inventing a new pattern.
 - When touching demo examples, make sure the example still works in `http://localhost:8082`.
 - Do not hand-edit `dist/`, `docs/compiled/`, or `docs/uncompiled/` unless a build step generated them.
+- Desktop editor sources live in `packages/artplayer-vitepress/browser/`; `docs/assets/js/common.js`,
+  `bootstrap.js`, `loader.js`, `mobile.js` and `packages/artplayer-vitepress/docs/public/main.js`
+  are generated with `yarn build:site-assets`. `editor-libraries.ts` is generated by `yarn build:ts`.
 
 ## Primary Commands