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/@nodelib/fs.walk/out/readers/async.d.ts

@@ -0,0 +1,30 @@
+/// <reference types="node" />
+import { EventEmitter } from 'events';
+import * as fsScandir from '@nodelib/fs.scandir';
+import type Settings from '../settings';
+import type { Entry, Errno } from '../types';
+import Reader from './reader';
+declare type EntryEventCallback = (entry: Entry) => void;
+declare type ErrorEventCallback = (error: Errno) => void;
+declare type EndEventCallback = () => void;
+export default class AsyncReader extends Reader {
+    protected readonly _settings: Settings;
+    protected readonly _scandir: typeof fsScandir.scandir;
+    protected readonly _emitter: EventEmitter;
+    private readonly _queue;
+    private _isFatalError;
+    private _isDestroyed;
+    constructor(_root: string, _settings: Settings);
+    read(): EventEmitter;
+    get isDestroyed(): boolean;
+    destroy(): void;
+    onEntry(callback: EntryEventCallback): void;
+    onError(callback: ErrorEventCallback): void;
+    onEnd(callback: EndEventCallback): void;
+    private _pushToQueue;
+    private _worker;
+    private _handleError;
+    private _handleEntry;
+    private _emitEntry;
+}
+export {};