chore: install cssbundling rails and set up compilation

spec/dummy/node_modules/get-stdin/index.js

@@ -0,0 +1,33 @@
+const {stdin} = process;
+
+export default async function getStdin() {
+	let result = '';
+
+	if (stdin.isTTY) {
+		return result;
+	}
+
+	stdin.setEncoding('utf8');
+
+	for await (const chunk of stdin) {
+		result += chunk;
+	}
+
+	return result;
+}
+
+getStdin.buffer = async () => {
+	const result = [];
+	let length = 0;
+
+	if (stdin.isTTY) {
+		return Buffer.concat([]);
+	}
+
+	for await (const chunk of stdin) {
+		result.push(chunk);
+		length += chunk.length;
+	}
+
+	return Buffer.concat(result, length);
+};