FSR can lock editor if started when domain reload in progress

Needs confirmation.

File watchers are triggered outside of main thread and potentially code could run even if Unity is doing main reload?

Not sure why that'd lock reloading.

There are some settings in code that'll use LockAssemblyReload - maybe that somehow could contribute?

首先，在 Unity 的 domain reload 进行期间重现 lock，重点关注可能在 main thread 之外运行的 file watchers。检查使用 LockAssemblyReload 的代码路径，并确定它们是否可能与 reload 重叠。完成的标准是确认原因并记录或修复 locking 行为，同时具备可靠的重现方法。

由索引模型根据 Issue 内容生成。