fix: 使用 defineNuxtPlugin 包裹

playground/app.vue

@@ -1,8 +1,7 @@
 <template>
-  <div>
-    Nuxt module playground!
-  </div>
+  <div>{{ data?.toLocaleUpperCase() }} Nuxt module playground!</div>
 </template>
 
-<script setup>
+<script setup lang="ts">
+const { data } = await useFetch("/api/hello");
 </script>

playground/nuxt.config.ts

@@ -1,5 +1,4 @@
 export default defineNuxtConfig({
-  modules: ['../src/module'],
-  myModule: {},
-  devtools: { enabled: true }
-})
+  modules: ["../src/module"],
+  devtools: { enabled: true },
+});

playground/server/api/hello.ts

@@ -0,0 +1 @@
+export default defineEventHandler(() => "hello");

src/runtime/00.fetch.client.ts

@@ -1,5 +1,6 @@
 // @ts-nocheck
 import destr from "destr";
+import { defineNuxtPlugin } from "#app";
 
 export interface ResponseMap {
   blob: Blob;
@@ -43,7 +44,7 @@ export function detectResponseType(_contentType = ""): ResponseType {
   return "blob";
 }
 
-export default () => {
+export default defineNuxtPlugin(() => {
   const nullBodyResponses = new Set([101, 204, 205, 304]);
   const _fetch = globalThis.$fetch;
   async function $$fetch(arg1, options = {}, ...rest) {
@@ -90,4 +91,4 @@ export default () => {
   Object.keys(_fetch).forEach((key) => {
     globalThis.$fetch[key] = _fetch[key];
   });
-};
+});