Unsigned parent process ERR_ADDRESS_UNREACHABLE [fixed]

[dts]

Had a bit of a lengthy chase around ERR_ADDRESS_UNREACHABLE - finally figured out that it was an unsigned tmux binary that was messing up the whole thing. In case anybody else runs into the problem, you just have to sign the tmux executable with your personal developer identity. Details here: https://github.com/dts/orbstack-playwright-repro. In case it saves anybody else many, many hours of debugging, I've also left comments on the issues that came up while trying to figure this out. Hope this saves a future person some time!