chore: bump version to 1.0.16

Author: hyungwookchoi

package.json

@@ -1,10 +1,11 @@
 {
   "name": "@chess-labs/core",
-  "version": "1.0.15",
+  "version": "1.0.16",
   "description": "A lightweight, framework-agnostic chess engine written entirely in TypeScript",
   "main": "dist/cjs/index.js",
   "module": "dist/esm/index.js",
   "types": "dist/types/index.d.ts",
+  "type": "module",
   "exports": {
     ".": {
       "import": "./dist/esm/index.js",