chore: replace tsup to tsdown, set the "type" of the playground to "module" to adapt to the new version of Vite

package.json

@@ -78,8 +78,8 @@
     "dist"
   ],
   "scripts": {
-    "build": "tsup",
-    "dev": "tsup --watch src",
+    "build": "tsdown",
+    "dev": "tsdown -w",
     "lint": "eslint .",
     "play": "npm -C playground run dev",
     "prepublishOnly": "npm run build",
@@ -131,7 +131,7 @@
     "eslint": "^9.20.0",
     "nodemon": "^3.1.9",
     "rollup": "^4.34.6",
-    "tsup": "^8.3.6",
+    "tsdown": "^0.12.0",
     "tsx": "^4.19.2",
     "typescript": "^5.7.3",
     "vite": "^6.1.0",

playground/package.json

@@ -1,4 +1,5 @@
 {
+  "type": "module",
   "private": true,
   "scripts": {
     "dev": "nodemon -w '../src/**/*.ts' -e .ts -x vite"

src/index.ts

@@ -1,4 +1,4 @@
-import type { UnpluginFactory } from 'unplugin'
+import type { UnpluginFactory, UnpluginInstance } from 'unplugin'
 import type { Options } from './types'
 import { createUnplugin } from 'unplugin'
 

src/nuxt.ts

@@ -2,7 +2,6 @@ import type { Options } from './types'
 import { addVitePlugin, addWebpackPlugin, defineNuxtModule } from '@nuxt/kit'
 import vite from './vite'
 import webpack from './webpack'
-import '@nuxt/schema'
 
 export interface ModuleOptions extends Options {
 

tsdown.config.ts

@@ -0,0 +1,6 @@
+import { defineConfig } from 'tsdown'
+
+export default defineConfig({
+  entry: ['src/*.ts'],
+  format: ['esm', 'cjs'],
+})