fix(docs): [SITE-LOAD-01] serialize example loading and preserve navigation

packages/artplayer-vitepress/README.md

@@ -22,6 +22,12 @@ and 13 English. Danmuku has no English counterpart yet. Other plugins currently
 use their package README, architecture notes and linked editor examples;
 navigation links alone are not complete API documentation.
 
+Site-owned browser behavior now lives in `browser/`; its README maps the shared
+loader, mobile entry and Run Code/language navigation. `docs/public/main.js` is a
+generated input to VitePress. Run root `yarn build:site-assets` after changes, or
+`yarn check:site-assets` for drift. The existing desktop common.js UI remains a
+separate source pending SITE-03 migration; no player package APIs move here.
+
 ## Related tooling
 
 Run commands from the repository root with its pinned Node version and Yarn
@@ -69,12 +75,12 @@ have separate dependencies. See the repository
 [site inventory](../../refactor/site-inventory.md) for the full entrypoint map,
 source fingerprints, asset provenance and assigned follow-up work.
 
-`main.js` installs one document click listener under `window['run-code-init']`;
-its lifetime is the page. Run Code opens the separate editor. The development
-hostname check is currently exactly `localhost`; `127.0.0.1` follows the remote
-link path. The language redirect writes `lang-init` and can navigate to the
-English root on a first non-Chinese visit. SITE-03/SITE-05 must test these paths
-before modifying routing or VitePress client lifecycle behavior.
+Generated `main.js` installs one document click listener under
+`window['run-code-init']`; its lifetime is the page. Run Code opens the separate
+editor and recognizes localhost, 127.0.0.1 and IPv6 loopback. First-language
+navigation preserves existing English counterparts and explicit later choices;
+unavailable storage keeps the requested page. See `browser/README.md` for the
+current rules and verified scope. Full VitePress lifecycle remains SITE-03/05.
 
 ## Delivery and remaining acceptance