[FEATURE] /login should not wipe Terminal scrollback

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

/login currently clears Terminal history, you cannot scroll up anymore.

Proposed Solution

Just do the same thing the clear command does instead of what cmd-k does.

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

Interactive mode (TUI)

Use Case Example

It just sucks that your terminal scrollback can be deleted without you consenting to it.

Additional Context

_No response_