Simplify app dev, build, server, preview usage via cli

npm-packages/cli/build.ts

@@ -0,0 +1,43 @@
+import {execa} from 'execa';
+
+/**
+ *	Build the cli executable and copy necessary files to dist
+ */
+async function main() {
+	console.log('🚧 Building the CLI package...');
+
+	// Run the build command
+	await execa('tsc', {
+		stdio: 'inherit',
+		shell: true,
+	});
+
+	// Copy files to dist
+	const filesToCopy = [
+		'lib/server/preview/frontend/index.html',
+		'lib/server/preview/backend/load-remote.cjs',
+	];
+
+	for (const filePath of filesToCopy) {
+		if (process.platform === 'win32') {
+			await execa(
+				'copy',
+				[
+					`source\\${filePath.replace(/\//g, '\\')}`,
+					`dist\\${filePath.replace(/\//g, '\\')}`,
+				],
+				{
+					shell: true,
+				},
+			);
+		} else {
+			await execa('cp', [`source/${filePath}`, `dist/${filePath}`], {
+				shell: true,
+			});
+		}
+	}
+
+	console.log('✅ Build completed successfully.');
+}
+
+main();