fix entry points

Author: Georg Traar

package.json

@@ -2,13 +2,17 @@
   "name": "@proddata/node-cratedb",
   "version": "0.0.9",
   "description": "Node.js client for CrateDB",
-  "types": "dist/index.d.ts",
   "type": "module",
-  "main": "dist/cjs/index.cjs",
-  "module": "dist/esm/index.js",
+  "types": "dist/esm/CrateDBClient.d.ts",
   "exports": {
-    "import": "./dist/esm/index.js",
-    "require": "./dist/cjs/index.js"
+    "import": {
+      "types": "./dist/esm/CrateDBClient.d.ts",
+      "default": "./dist/esm/CrateDBClient.js"
+    },
+    "require": {
+      "types": "./dist/cjs/CrateDBClient.d.ts",
+      "default": "./dist/cjs/CrateDBClient.js"
+    }
   },
   "scripts": {
     "build": "npm run build:clean && npm run build:esm && npm run build:cjs",
@@ -59,4 +63,4 @@
   "engines": {
     "node": ">=21.0.0"
   }
-}
+}