copy jszip from vendor zo public

scripts/copy-vendor.mjs

@@ -0,0 +1,15 @@
+import fs from 'fs';
+import path from 'path';
+
+// Copies vendor browser bundles from node_modules into public/s/js/
+const vendors = [
+  { src: 'jszip/dist/jszip.min.js', dest: 'public/s/js/jszip.min.js' },
+];
+
+for (const { src, dest } of vendors) {
+  const srcPath = path.join(process.cwd(), 'node_modules', src);
+  const destPath = path.join(process.cwd(), dest);
+  fs.copyFileSync(srcPath, destPath);
+  const size = fs.statSync(destPath).size;
+  console.log(`Copied: ${src} -> ${dest} (${size} bytes)`);
+}