chore: add root and ensure vm (#3692)

Author: 10Derozan

.changeset/neat-ties-exist.md

@@ -0,0 +1,6 @@
+---
+'@modern-js/plugin-module-doc': patch
+---
+
+chore: add root and ensure vm path
+chore: 添加root和确认虚拟模块路径

packages/module/plugin-module-doc/src/features/lanchDoc.ts

@@ -47,6 +47,7 @@ export async function launchDoc({
   const modernDocConfig = mergeDocConfig(
     {
       doc: {
+        root,
         title: json.name,
         lang: DEFAULT_LANG,
         builderConfig: {

packages/module/plugin-module-doc/src/runtimeModule.ts

@@ -20,6 +20,7 @@ export default class RuntimeModulesPlugin {
   writeModule(path: string, content: string) {
     const normalizedPath = this.#normalizePath(path);
     this.staticModules[normalizedPath] = content;
+    fs.ensureFileSync(normalizedPath);
     fs.writeFileSync(normalizedPath, content);
   }