860d4ccaa9
Move the tmux auto-start out of the graphical-only desktop layer into the shared shell config so it also covers WSL, iTerm2 and the Linux console (folded into programs.zsh.initContent via mkMerge alongside the SSH PS1 block). Same guards: interactive, not-already-in-tmux, not-SSH, not-VS-Code, tmux-present. ssh: run a user ssh-agent on Linux (macOS uses launchd) and add keys on first use (addKeysToAgent), so the passphrase is entered once per login session instead of per commit/push -- which also feeds commit signing. macOS additionally caches in the login keychain (UseKeychain). The work box keeps its own ~/.ssh/config (programs.ssh forced off there); its ssh-agent still runs via the work module. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>