fix: inline CJS module/exports shims in client bundle for browser loader

workbench/plugin/lib/client.js

@@ -1,4 +1,6 @@
 window.__ModuleLoader__.load({ id: "@gyxx/dsh-plugin-gyxx-workbench", factory: (require) => {
+var module = { exports: {} };
+var exports = module.exports;
 var __defProp = Object.defineProperty;
 var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
 var __getOwnPropNames = Object.getOwnPropertyNames;

workbench/plugin/scripts/build-client.mjs

@@ -40,7 +40,9 @@ await build({
     'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV ?? 'production'),
   },
   banner: {
-    js: `window.__ModuleLoader__.load({ id: ${JSON.stringify(PKG_ID)}, factory: (require) => {`,
+    // dsh 浏览器加载器只给 factory 传 require（返回值即模块导出），
+    // CJS 的 module/exports 垫片必须由包体自带（与官方 tsdown 产物一致）。
+    js: `window.__ModuleLoader__.load({ id: ${JSON.stringify(PKG_ID)}, factory: (require) => {\nvar module = { exports: {} };\nvar exports = module.exports;`,
   },
   footer: { js: 'return module.exports; } });' },
   logLevel: 'info',