Use the SSH keys stored in your Windows Bitwarden Desktop vault from inside
WSL2 — ssh, git, ssh-add, etc. — managed by a systemd user service
instead of a fragile .zshrc snippet.
This bridges the Windows OpenSSH-agent named pipe that Bitwarden exposes
(\\.\pipe\openssh-ssh-agent) to a Unix socket inside WSL using
npiperelay + socat.