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/foreground-child/dist/esm/watchdog.d.ts

@@ -0,0 +1,10 @@
+import { ChildProcess } from 'child_process';
+/**
+ * Pass in a ChildProcess, and this will spawn a watchdog process that
+ * will make sure it exits if the parent does, thus preventing any
+ * dangling detached zombie processes.
+ *
+ * If the child ends before the parent, then the watchdog will terminate.
+ */
+export declare const watchdog: (child: ChildProcess) => ChildProcess;
+//# sourceMappingURL=watchdog.d.ts.map