feat: implement build system and development workflow

- Add npm scripts for CSS/JS compilation (build:css, build:js, build)
- Create PowerShell build automation script
- Document development workflow in README
- Add troubleshooting guide for build issues
- Specify proper file structure and compilation process

Supports Tailwind CSS v3.4.0 and esbuild bundling with source maps.

node_modules/postcss-js/process-result.js

@@ -0,0 +1,11 @@
+let objectify = require('./objectifier')
+
+module.exports = function processResult(result) {
+  if (console && console.warn) {
+    result.warnings().forEach(warn => {
+      let source = warn.plugin || 'PostCSS'
+      console.warn(source + ': ' + warn.text)
+    })
+  }
+  return objectify(result.root)
+}