Linux SSH fixture: /bin/sh -> dash; account login shell /bin/bash; Zoxide 0.9.3.
The account's .bash_profile sources .profile, which runs eval "$(zoxide init bash)".

$ ssh profile-demo true
exit 0
$ ssh profile-demo 'sh -c true'
exit 0
$ ssh profile-demo 'sh -l -c true'
sh: 7: eval: Syntax error: "(" unexpected
exit 2
$ ssh profile-demo 'bash -l -c true'
exit 0

Base 0bc993ac09be75c679c7c3a3c9ddbf9a4024477d, actual desktop Add Environment > SSH:
Could not prepare the SSH environment: Error invoking remote method 'desktop:ensure-ssh-environment': SshCommandError: sh: 7: eval: Syntax error: "(" unexpected

Head 10933513da026635f5d936f2bce155c9eb91e92b, same interaction and fixture:
Environment connected
profile-demo is ready over an SSH-managed tunnel.
SSH profile-demo@127.0.0.1 · Connected
Desktop runtime logged ssh.environment.ensure.succeeded, remoteServerKind: managed.

Both clients: Linux Electron on Xvfb, 1100x780 viewport, light theme, isolated fresh T3 homes, no imports or real threads. Remote managed state was reset between attempts. SSH uses a synthetic local account and generated keys. No model turn was run.
Screenshots were identical across two captures 500 ms apart. The head host display name is replaced by 'Remote SSH host' for privacy; the SSH alias, status and error are unchanged.
AI-assisted; verified with the tests and tools listed above.