fix: add default export condition for non-import resolvers

Author: Zk-nd3r

package.json

@@ -1,14 +1,15 @@
 {
   "name": "@frontiercompute/zap1",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "ZAP1 Merkle proof verification for JavaScript/TypeScript - WASM-powered BLAKE2b-256",
   "type": "module",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "exports": {
     ".": {
       "import": "./dist/index.js",
-      "types": "./dist/index.d.ts"
+      "types": "./dist/index.d.ts",
+      "default": "./dist/index.js"
     }
   },
   "files": [