fix: resolve local demo runtime errors and improve documentation

  - Add missing REACT_APP_NETLIFY_BASE_URL replacement in rollup config to fix "process is not defined" error in standalone build
  - Update README CDN example to use specific version (2.4.0) instead of vague @2.x
  - Document build directory structure and shadow DOM CSS import requirements
  - Clarify why both /dist/ and /build/ directories are published to npm

  Fixes local demo functionality where netlifyBaseUrl environment variable was undefined in browser, causing API requests to fail.

Author: bacalj

README.md

@@ -154,7 +154,7 @@ function MyApp() {
 ### Standalone Javascript
 
 ```html
-<script src="https://unpkg.com/@snf/access-qa-bot@2.x/dist/access-qa-bot.standalone.js"></script>
+<script src="https://unpkg.com/@snf/access-qa-bot@2.4.0/dist/access-qa-bot.standalone.js"></script>
 
 <div id="qa-bot"></div>
 
@@ -254,6 +254,22 @@ This creates the distribution files in the `dist/` directory:
 - `access-qa-bot.umd.cjs` (UMD/CommonJS) 
 - `access-qa-bot.standalone.js` (Standalone version)
 
+### Build Directory
+
+The package includes both `/dist/` and `/build/` directories:
+
+- **`/dist/`**: Library files for npm consumers and CDN usage
+  - `access-qa-bot.js` (ES module for React apps)
+  - `access-qa-bot.umd.cjs` (CommonJS)
+  - `access-qa-bot.standalone.js` (Self-contained for plain HTML)
+
+- **`/build/`**: React app build files
+  - Required for shadow DOM implementations that need to import CSS directly
+  - Example: `import qaStyle from '@snf/access-qa-bot/build/static/css/main.css?inline'`
+  - Maintained for backward compatibility with existing integrations
+
+Both directories are published to npm to support different integration patterns.
+
 ### NPM Beta Release
 
 To release a beta version:
@@ -380,7 +396,7 @@ npm install @snf/access-qa-bot@beta
 - Removed unused helper functions (`getCurrentPriority`, `getCurrentAccessId`)
 - Cleaned up debug console statements for production
 - Added markdown renderer plugin alongside HTML renderer
-- Improved build configuration and excluded build directory from version control
+- Improved build configuration and updated build directory handling
 
 #### 📚 Documentation
 - Updated README with comprehensive feature list and integration examples

rollup.config.mjs

@@ -79,7 +79,8 @@ export default [
         preventAssignment: true,
         'process.env.NODE_ENV': JSON.stringify('production'),
         // Replace react app environment variables
-        'process.env.REACT_APP_API_KEY': JSON.stringify('demo-key')
+        'process.env.REACT_APP_API_KEY': JSON.stringify('demo-key'),
+        'process.env.REACT_APP_NETLIFY_BASE_URL': JSON.stringify('https://access-jsm-api.netlify.app')
       }),
       resolve({
         extensions: ['.js', '.jsx'],