build: 更新项目版本号

- 将 package.json 中的版本号从 0.0.3 修改为 0.0.4
- 此次更新主要包括一些代码优化和小功能的添加，为下一个正式版本做准备

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ddmt-tool",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "description": "A utility library that provides commonly used functions to simplify everyday development tasks. Whether it's string manipulation, array operations, or other frequent functionalities, `ddmt-tool` helps you work more efficiently.",
   "main": "index.js",
   "type": "module",