FlashRec v0.6.10

修复

Linux 托盘菜单勾选标记不显示（修复）：修复「开机启动」「窗口置顶」等托盘勾选项在 GNOME 等面板永远显示不出勾选标记的问题——此前勾选状态只存在于程序内部，托盘上看不到，反复点击甚至会把已开启的功能反向关闭。
Linux deb 更新支持应用内直接安装：更新包下载完成后，面板提供「立即安装」按钮——点击后应用退出，系统弹出授权窗口（polkit），安装完成后自动拉起新版本，不再需要手动到软件中心安装。（无 polkit 环境保持原来的「打开所在文件夹」手动方式，兼容 Debian/Ubuntu 系。）
AppImage 更新助手加固：换装前增加哈希复核（封堵下载与替换之间的文件窗口）、最终替换失败自动回滚旧版本、全程写入安装日志，失败可诊断。

Tray checkmarks never rendered on Linux: fixed "Start on boot" / "Always on top" tray check items never showing their checkmark in GNOME and other appindicator panels — the checked state was internal-only, and clicking the seemingly-unchecked item could silently turn an enabled feature back off.
In-app install for deb updates (Linux): the update panel now offers "Install now" once the package is downloaded — the app exits, a system authorization prompt (polkit) appears, and the new version relaunches automatically; no more manual detour through the software center. Environments without polkit keep the previous "open folder" manual flow (Debian/Ubuntu compatible).
AppImage update helper hardening: the helper now re-verifies the package hash before swapping (closing the download→install file window), rolls back to the old version if the final rename fails, and writes a full install log for diagnosability.

"Up to date" now shows the version: the update dialog title includes the remote version (e.g. "You're up to date (v0.6.10)"); the tray menu stays action-only.