更新文件结构，统一文档格式

backend/test-api.js

@@ -4,7 +4,7 @@ const http = require('http');
 function testHealthCheck() {
   return new Promise((resolve, reject) => {
     const options = {
-      hostname: 'localhost',
+      hostname: 'api.jiebanke.com',
       port: 3000,
       path: '/health',
       method: 'GET'
@@ -43,7 +43,7 @@ function testAuthAPI() {
     });
 
     const options = {
-      hostname: 'localhost',
+      hostname: 'api.jiebanke.com',
       port: 3000,
       path: '/api/v1/auth/login',
       method: 'POST',