更新支持es5环境

packages/core/build-rollup.cjs

@@ -62,6 +62,8 @@ function generatePackageJson() {
             'index.cjs.map',
             'index.umd.js',
             'index.umd.js.map',
+            'index.es5.js',
+            'index.es5.js.map',
             'index.d.ts',
             'README.md',
             'LICENSE',
@@ -113,7 +115,7 @@ function copyFiles() {
 
 function showBuildResults() {
     const distDir = './dist';
-    const files = ['index.mjs', 'index.cjs', 'index.umd.js', 'index.d.ts'];
+    const files = ['index.mjs', 'index.cjs', 'index.umd.js', 'index.es5.js', 'index.d.ts'];
     
     console.log('\n📊 构建结果:');
     files.forEach(file => {