feat(auth): 添加 3xui 登录功能

- 新增 3xuiLogin.js 文件实现登录功能
- 添加 getCookie 函数用于获取登录 Cookie
- 集成 HTTP 实例和表单数据处理

app.js

@@ -53,7 +53,6 @@ const loadAPIRoutes = (baseDir = 'api', baseRoute = '/api') => {
   // 初始化扫描
   scanDirectory(path.join(__dirname, baseDir), baseRoute);
 };
-
 // 公开路由
 router.get("/public", (ctx) => {
   ctx.body = "Public content";

auth/3xuiLogin.js

@@ -0,0 +1,19 @@
+const instance = require("../utils/http");
+
+function getCookie() {
+  const formData = new FormData();
+  formData.append("username", "lsw");
+  formData.append("password", "lsw@2024");
+  formData.append("loginSecret", "IEuVG4csTWLuaq3ysuUSHdwOcnoQRfScURwJVBjCMjRRpjVyYhWcgaHIJvU0SV4P");
+  return instance
+    .post("/login", formData, {
+      maxRedirects: 0, // 禁止自动重定向以保留Cookie
+      withCredentials: true, // 确保携带凭证
+    })
+    .then((res) => {
+      const rawCookies = res.headers["set-cookie"] || [];
+      const cookies =["lang=zh-CN",rawCookies.at(-1)?.split(";")[0]].join(";");
+      return cookies;
+    });
+}
+module.exports = getCookie;