添加了更严格的邮箱格式检查

internal/handler/auth_handler.go

@@ -117,6 +117,16 @@ func (h *AuthHandler) SendVerificationCode(c *gin.Context) {
 		return
 	}
 
+	// 验证邮箱格式
+	if !isValidEmail(req.Email) {
+		h.logger.Warn("发送验证码失败：邮箱格式错误",
+			zap.String("email", req.Email),
+		)
+		RespondBadRequest(c, "邮箱格式错误", nil)
+		return
+	}
+
+	// 调用服务发送验证码
 	if err := h.container.VerificationService.SendCode(c.Request.Context(), req.Email, req.Type); err != nil {
 		h.logger.Error("发送验证码失败",
 			zap.String("email", req.Email),