chore: 更新静态资源文件并清理构建输出目录

删除旧的构建输出文件，包括图片资源和编译生成的JavaScript文件
添加新的图标资源文件到assets/img目录
更新package.json中的开发脚本配置

.output/server/node_modules/axios/lib/helpers/combineURLs.js

@@ -1,15 +0,0 @@
-'use strict';
-
-/**
- * Creates a new URL by combining the specified URLs
- *
- * @param {string} baseURL The base URL
- * @param {string} relativeURL The relative URL
- *
- * @returns {string} The combined URL
- */
-export default function combineURLs(baseURL, relativeURL) {
-  return relativeURL
-    ? baseURL.replace(/\/?\/$/, '') + '/' + relativeURL.replace(/^\/+/, '')
-    : baseURL;
-}