refactor: 移除java项目，改用hono + vercel function实现后端 (#1)

Co-authored-by: gin <gin-18@qq.com>
Co-authored-by: gin <dengxinmin@owlscm.com>
Reviewed-on: #1

frontend/web/vite.config.ts

@@ -45,7 +45,7 @@ export default ({ mode }: ConfigEnv): UserConfigExport => {
       // 本地跨域代理 https://cn.vitejs.dev/config/server-options.html#server-proxy
       proxy: {
         "/dev-api": {
-          target: "http://localhost:8080",
+          target: "http://localhost:3000",
           changeOrigin: true,
           rewrite: path => path.replace(/^\/dev-api/, "")
         }