fix(login): 修复登录成功后路由跳转问题

- 将登录成功后的路由跳转从 '/' 修改为 '/index'
- 添加了测试脚本文件用于API功能验证
- 更新了服务器日志和前端构建输出日志文件

test_api.ps1

@@ -0,0 +1,13 @@
+$body = '{"username":"aceykubbo","password":"axl123.0"}'
+try {
+    $r = Invoke-WebRequest -Uri 'http://localhost:3001/api/login' -Method POST -ContentType 'application/json' -Body $body -TimeoutSec 10
+    Write-Host "Status:" $r.StatusCode
+    Write-Host "Body:" $r.Content
+} catch {
+    Write-Host "Error:" $_.Exception.Message
+    if ($_.Exception.Response) {
+        $stream = $_.Exception.Response.GetResponseStream()
+        $reader = New-Object System.IO.StreamReader($stream)
+        Write-Host "Response:" $reader.ReadToEnd()
+    }
+}