fix(account): 将删除账号接口从GET改为POST方法

修复删除账号接口的安全问题，GET方法不应用于敏感操作
同时增加邮箱验证码校验，提高账号安全性
```

```msg
feat(auth): 在设备登录时更新用户代理信息

添加设备登录时更新用户代理(UA)的逻辑
确保设备信息保持最新状态
```

```msg
refactor(handler): 重构删除账号处理器的验证逻辑

将邮箱验证码校验逻辑提取为独立函数
提高代码可维护性和复用性

internal/handler/public/user/deleteAccountHandler.go

@@ -1,17 +1,39 @@
 package user
 
 import (
+	"context"
+	"encoding/json"
+	"fmt"
 	"net/http"
 
 	"github.com/gin-gonic/gin"
 	"github.com/perfect-panel/server/internal/logic/public/user"
 	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/pkg/constant"
+	"github.com/pkg/errors"
 )
 
 // DeleteAccountHandler 注销账号处理器
 // 根据当前token删除所有关联设备，然后根据各自设备ID重新新建账号
+// 新增：需携带邮箱验证码，验证通过后执行注销
+type deleteAccountReq struct {
+	EmailCode string `json:"email_code" binding:"required"` // 邮箱验证码
+}
+
 func DeleteAccountHandler(serverCtx *svc.ServiceContext) gin.HandlerFunc {
 	return func(c *gin.Context) {
+		var req deleteAccountReq
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "invalid request: " + err.Error()})
+			return
+		}
+
+		// 校验邮箱验证码
+		if err := verifyEmailCode(c.Request.Context(), serverCtx, req.EmailCode); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+
 		l := user.NewDeleteAccountLogic(c.Request.Context(), serverCtx)
 		resp, err := l.DeleteAccount()
 		if err != nil {
@@ -21,3 +43,27 @@ func DeleteAccountHandler(serverCtx *svc.ServiceContext) gin.HandlerFunc {
 		c.JSON(http.StatusOK, resp)
 	}
 }
+
+type CacheKeyPayload struct {
+	Code   string `json:"code"`
+	LastAt int64  `json:"lastAt"`
+}
+
+func verifyEmailCode(ctx context.Context, serverCtx *svc.ServiceContext, code string) error {
+	userEmail := ctx.Value("user_email").(string)
+	cacheKey := fmt.Sprintf("auth_code:%s:%s", constant.Security, userEmail)
+	val, err := serverCtx.Redis.Get(ctx, cacheKey).Result()
+	if err != nil {
+		return errors.Wrap(err, "failed to get cached code")
+	}
+	var payload CacheKeyPayload
+	if err := json.Unmarshal([]byte(val), &payload); err != nil {
+		return errors.Wrap(err, "invalid cached payload")
+	}
+	if payload.Code != code {
+		return errors.New("invalid email code")
+	}
+	// 验证通过，立即删除缓存，防止重复使用
+	_ = serverCtx.Redis.Del(ctx, cacheKey)
+	return nil
+}

internal/handler/routes.go

@@ -775,7 +775,7 @@ func RegisterHandlers(router *gin.Engine, serverCtx *svc.ServiceContext) {
 	publicUserGroupRouter.GET("/affiliate/list", publicUser.QueryUserAffiliateListHandler(serverCtx))
 
 	// Delete Account
-	publicUserGroupRouter.GET("/delete_account", publicUser.DeleteAccountHandler(serverCtx))
+	publicUserGroupRouter.POST("/delete_account", publicUser.DeleteAccountHandler(serverCtx))
 
 	// Query User Balance Log
 	publicUserGroupRouter.GET("/balance_log", publicUser.QueryUserBalanceLogHandler(serverCtx))

internal/logic/auth/deviceLoginLogic.go

@@ -43,6 +43,7 @@ func (l *DeviceLoginLogic) DeviceLogin(req *types.DeviceLoginRequest) (resp *typ
 	var userInfo *user.User
 	// Record login status
 	defer func() {
+
 		if userInfo != nil && userInfo.Id != 0 {
 			loginLog := log.Login{
 				Method:    "device",
@@ -95,6 +96,16 @@ func (l *DeviceLoginLogic) DeviceLogin(req *types.DeviceLoginRequest) (resp *typ
 		}
 	}
 
+	// 根据 req 中的UA 更新UA
+	deviceInfo.UserAgent = req.UserAgent
+	if err := l.svcCtx.UserModel.UpdateDevice(l.ctx, deviceInfo); err != nil {
+		l.Errorw("update user agent failed",
+			logger.Field("device_id", deviceInfo.Id),
+			logger.Field("error", err.Error()),
+		)
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "update user agent failed: %v", err.Error())
+	}
+
 	// Generate session id
 	sessionId := uuidx.NewUUID().String()