Wrap TUI status footer across narrow terminals

Summary

The TUI status footer contains useful session context, but that information is difficult to use when working with multiple smaller terminal windows. In narrower panes, the footer has limited horizontal space, so important context can become hard to see at a glance.

This is a feature request to let the passive status footer wrap across a small bounded number of rows when needed, instead of relying only on a single horizontal line.

Desired behaviour

When the terminal is narrow, the TUI status footer should preserve more of its useful context by wrapping onto additional footer rows. The layout should remain compact, predictable, and should continue to preserve important right-side indicators.

Acceptance criteria

• [ ] The TUI status footer can show useful session context across multiple rows in narrow terminal widths.
• [ ] The footer remains visually bounded so it does not consume excessive vertical space.
• [ ] Right-side footer indicators remain visible when present.
• [ ] Wide terminals continue to show the footer compactly on one row.
• [ ] The wrapped footer layout works well when multiple smaller terminal windows are open side by side.

Additional context

I have a small tested patch available on mrStorrs/codex:feat/status-line-wrap that wraps the passive status footer up to 3 rows while preserving right-side indicators. If this direction is acceptable, I would be happy to open a PR from that branch.