refactor(handler): 使用result包统一处理HTTP响应

在deleteAccountHandler中使用result.HttpResult统一处理HTTP响应，提高代码一致性和可维护性

internal/logic/public/user/deleteAccountLogic.go

@@ -109,6 +109,7 @@ func (l *DeleteAccountLogic) DeleteAccount() (resp *types.DeleteAccountResponse,
 	resp.Message = "账户注销成功"
 	resp.UserId = newUserId
 	resp.Code = 200
+
 	return resp, nil
 }