feat!: pure ESM package (#40)

Author: chenjiahan

package.json

@@ -12,12 +12,9 @@
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
-      "import": "./dist/index.js",
-      "require": "./dist/index.cjs"
+      "default": "./dist/index.js"
     }
   },
-  "main": "./dist/index.cjs",
-  "types": "./dist/index.d.ts",
   "files": [
     "dist"
   ],
@@ -31,19 +28,17 @@
   "devDependencies": {
     "@playwright/test": "^1.59.1",
     "@rsbuild/core": "^2.0.0-rc.2",
+    "@rslib/core": "^0.21.0",
     "@rslint/core": "^0.4.2",
-    "@rslib/core": "0.21.0",
     "@rstest/core": "^0.9.7",
+    "@types/fs-extra": "^11.0.4",
     "@types/node": "^25.6.0",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
-    "@typescript/native-preview": "7.0.0-dev.20260412.1",
     "fs-extra": "^11.3.4",
     "playwright": "^1.59.1",
     "prettier": "^3.8.2",
-    "prebundle": "1.6.4",
-    "react-server-dom-rspack": "0.0.2",
-    "rsbuild-plugin-arethetypeswrong": "^0.3.1"
+    "react-server-dom-rspack": "0.0.2"
   },
   "peerDependencies": {
     "@rsbuild/core": "^2.0.0-0",