added other possible necessary files to output

scripts/copy-latest.mjs

@@ -1,19 +1,32 @@
 import { watch } from 'node:fs';
-import { access, constants, copyFile, mkdir } from 'node:fs/promises';
+import { access, constants, copyFile, mkdir, readdir, unlink } from 'node:fs/promises';
 import { dirname, join } from 'node:path';
 import { fileURLToPath } from 'node:url';
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 const root = join(__dirname, '..');
-const source = join(root, 'dist/phx-frontend-plugin-demo/browser/main.js');
-const dest = join(root, 'latest/main.js');
+const sourceDir = join(root, 'dist/phx-frontend-plugin-demo/browser');
+const destDir = join(root, 'latest');
 
-async function copyMainJs() {
+async function copyJsFiles() {
   try {
-    await access(source, constants.F_OK);
-    await mkdir(dirname(dest), { recursive: true });
-    await copyFile(source, dest);
-    console.log('[latest] Copied main.js');
+    await access(sourceDir, constants.F_OK);
+    await mkdir(destDir, { recursive: true });
+
+    const files = (await readdir(sourceDir)).filter((f) => f.endsWith('.js'));
+
+    for (const file of files) {
+      await copyFile(join(sourceDir, file), join(destDir, file));
+    }
+
+    const destFiles = (await readdir(destDir)).filter((f) => f.endsWith('.js'));
+    for (const file of destFiles) {
+      if (!files.includes(file)) {
+        await unlink(join(destDir, file));
+      }
+    }
+
+    console.log(`[latest] Copied ${files.length} JS file(s)`);
   } catch (err) {
     if (err.code !== 'ENOENT') {
       console.error('[latest] Copy failed:', err.message);
@@ -21,20 +34,20 @@ async function copyMainJs() {
   }
 }
 
-function watchMainJs() {
+function watchJsFiles() {
   let timeout;
 
   const debouncedCopy = () => {
     clearTimeout(timeout);
-    timeout = setTimeout(copyMainJs, 100);
+    timeout = setTimeout(copyJsFiles, 100);
   };
 
   const tryWatch = () => {
-    access(source, constants.F_OK)
+    access(sourceDir, constants.F_OK)
       .then(() => {
-        copyMainJs();
-        watch(source, debouncedCopy);
-        console.log('[latest] Watching for main.js changes');
+        copyJsFiles();
+        watch(sourceDir, debouncedCopy);
+        console.log('[latest] Watching for JS changes in dist');
       })
       .catch(() => setTimeout(tryWatch, 500));
   };
@@ -43,7 +56,7 @@ function watchMainJs() {
 }
 
 if (process.argv.includes('--watch')) {
-  watchMainJs();
+  watchJsFiles();
 } else {
-  copyMainJs();
+  copyJsFiles();
 }