resolve issue with missing vite-plugin-node-polyfills

add LibreJS licenses to all demo JS
split browser build from node build
add copyright info to license files
update to use yarn v4.13.0
update to v0.9.2

dist-browser/twtxt-lib.js

@@ -1,4 +1,10 @@
 // @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt
+/*
+ * twtxt-lib
+ * https://twtxt-lib.itsericwoodward.com/
+ * Copyright (c) 2026 Eric Woodward
+ * Released under the MIT License
+ */
 var __defProp = Object.defineProperty;
 var __defProps = Object.defineProperties;
 var __getOwnPropDescs = Object.getOwnPropertyDescriptors;
@@ -2894,7 +2900,6 @@ const base32Encode = (payload) => {
   return encoder.write(payload).finalize();
 };
 const getValueOrFirstEntry = (value) => Array.isArray(value) && value.length ? value[0] : value;
-globalThis.Buffer = Buffer$1;
 const dateRegex = /^(\d{4})-(\d{2})-(\d{2})([tT ])(\d{2}):(\d{2}):(\d{2})\.?(\d{3})?(?:(?:([+-]\d{2}):?(\d{2}))|Z)?$/;
 const formatRFC3339 = (date) => {
   const pad = (num = 0) => `${+num < 10 ? 0 : ""}${+num}`;
@@ -3391,6 +3396,7 @@ function loadAndParseTwtxtFile(url = "") {
     }
   });
 }
+globalThis.Buffer = Buffer$1;
 export {
   base32Encode,
   hashTwt,