fix: bring back CommonJS support

Author: kakkokari-gtyih

build.config.ts

@@ -0,0 +1,7 @@
+import { defineBuildConfig } from 'unbuild';
+
+export default defineBuildConfig({
+  rollup: {
+    emitCJS: true,
+  },
+});

package.json

@@ -24,19 +24,22 @@
   "exports": {
     ".": {
       "types": "./dist/types.d.mts",
-      "import": "./dist/module.mjs"
+      "import": "./dist/module.mjs",
+      "require": "./dist/module.cjs"
     }
   },
+  "main": "./dist/module.cjs",
+  "types": "./dist/types.d.mts",
   "files": [
     "dist"
   ],
   "scripts": {
     "dev": "nuxi dev playground",
     "dev:build": "nuxi build playground",
-    "dev:prepare": "nuxt-module-build --stub && nuxi prepare playground",
-    "build": "nuxt-module-build && nuxi build playground",
+    "dev:prepare": "nuxt-module-build build --stub && nuxi prepare playground",
+    "build": "nuxt-module-build build && nuxi build playground",
     "lint": "eslint .",
-    "prepublishOnly": "nuxi prepare playground && yarn lint && nuxt-module-build"
+    "prepublishOnly": "nuxi prepare playground && yarn lint && nuxt-module-build build"
   },
   "dependencies": {
     "@nuxt/kit": "^4.0.0",