fix(CipherStash-xToken): 修复代理配置逻辑

- 移除了提前初始化的代理实例
- 将代理配置移到请求参数中
- 添加了代理URL有效性检查
- 优化了请求参数结构
- 保持了原有的超时和头部配置

chore(Dockerfile): 更新构建阶段别名语法

- 将 'as builder' 改为 'AS builder' 以符合 Dockerfile 规范
- 保持基础镜像和工作目录不变
- 维持原有的依赖复制逻辑

CipherStash-xToken.js

@@ -698,7 +698,6 @@ export async function GetXToken(str, proxy) {
     }
 
     try {
-        const agent = new HttpsProxyAgent(proxy);
 
         let JsObj = JSON.parse(getXtokenObj(str));
         const headers = {
@@ -707,7 +706,7 @@ export async function GetXToken(str, proxy) {
             "User-Agent": str,
         };
 
-        const response = await fetch(`https://jra.jd.com/jsTk.do`, {
+        const formdata = {
             method: "POST",
             headers: headers,
             body: new URLSearchParams({
@@ -715,8 +714,17 @@ export async function GetXToken(str, proxy) {
                 d: JsObj.d
             }),
             timeout: 5000,
-            agent: agent // 添加代理
+        };
-        });
+
+        if (proxy) {
+            try {
+                formdata.agent = new HttpsProxyAgent(proxy);
+            } catch (e) {
+                throw new Error(`Invalid proxy URL: ${proxy}`);
+            }
+        }
+
+        const response = await fetch(`https://jra.jd.com/jsTk.do`, formdata);
 
         const responseData = await response.json();
 

Dockerfile

@@ -1,5 +1,5 @@
 # 第一阶段：安装依赖
-FROM node:24-slim as builder
+FROM node:24-slim AS builder
 
 WORKDIR /app
 COPY package*.json ./