新增前端vue

web-vue/packages/vite/plugins/legacy.ts

@@ -0,0 +1,18 @@
+/**
+ * Copyright (c) 2013-Now http://jeesite.com All rights reserved.
+ * No deletion without permission, or be held responsible to law.
+ * @author ThinkGem
+ */
+import { type PluginOption } from 'vite';
+import legacy from '@vitejs/plugin-legacy';
+import { legacyTargets } from '../options/build';
+
+export function configLegacyPlugin(isBuild: boolean, viteEnv: ViteEnv): PluginOption {
+  if (!(isBuild && viteEnv.VITE_LEGACY)) {
+    return [];
+  }
+  return legacy({
+    targets: legacyTargets,
+    modernPolyfills: true,
+  });
+}