Switch to commonjs to esm (#9)

Author: zachkirsch

package.json

@@ -6,6 +6,7 @@
     "type": "git",
     "url": "https://github.com/zachkirsch/trpc-openapi-2"
   },
+  "type": "module",
   "main": "lib/index.js",
   "files": [
     "lib",
@@ -38,6 +39,7 @@
     "prettier": "^3.4.2",
     "typescript": "^5.7.2",
     "typescript-eslint": "^8.17.0",
+    "vite": "^6.0.3",
     "vitest": "^2.1.8"
   }
 }