Oh My OpenAgent 5.1.70 adds terminal device-code login
Oh My OpenAgent 5.1.70 lets a server or fresh Linux host sign in with `omo login` while the desktop app is closed, using a device code approved elsewhere and storing the credential in the operating-system credential store. `omo whoami` and `omo logout` also work as closed one-shot commands.
Why it matters: The terminal route extends the existing cross-device authority event to headless machines. Device attachment, credential-store scope and visible account identity now determine whether an operator can bootstrap and revoke access without the desktop app.