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/lru-cache/dist/commonjs/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "commonjs"
+}

node_modules/lru-cache/dist/esm/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}