refactor: Continue refactoring after migrating to rsbuild

packages/storybook-config/package.json

@@ -3,10 +3,9 @@
   "version": "1.0.0",
   "description": "Shared Storybook configuration",
   "type": "module",
-  "main": "./dist/main.js",
   "exports": {
-    ".": "./dist/main.js",
-    "./preview": "./dist/preview.js"
+    "./dev": "./dist/dev.js",
+    "./testing": "./dist/testing.js"
   },
   "files": [
     "dist"