fix(FN-0000): include compound engineering dashboard css

plugins/fusion-plugin-compound-engineering/scripts/copy-css.mjs

@@ -0,0 +1,23 @@
+#!/usr/bin/env node
+// Copies every .css file under src/ to the mirrored path under dist/.
+import { cp, mkdir, readdir } from "node:fs/promises";
+import { dirname, join, relative } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const root = dirname(fileURLToPath(import.meta.url)) + "/..";
+const srcDir = join(root, "src");
+const distDir = join(root, "dist");
+
+async function* cssFiles(dir) {
+  for (const entry of await readdir(dir, { withFileTypes: true })) {
+    const full = join(dir, entry.name);
+    if (entry.isDirectory()) yield* cssFiles(full);
+    else if (entry.isFile() && entry.name.endsWith(".css")) yield full;
+  }
+}
+
+for await (const file of cssFiles(srcDir)) {
+  const dest = join(distDir, relative(srcDir, file));
+  await mkdir(dirname(dest), { recursive: true });
+  await cp(file, dest);
+}