[FEATURE]: add version to session header and /status in TUI

[AksharP5]

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

Summary

Add a way to see the current version in the session header, when the sidebar is collapsed, as well as add the version to /status dialog.

Why?

There is no quick way to see the version when the sidebar is collapsed, and /status gives a bunch of information already, the version as well would be nice.

Current Implementation

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• [FEATURE]: Show actually installed version of plugins in TUI #8280: Show actually installed version of plugins in TUI - specifically requests version info in the /status dialog

You may also want to review these related feature requests that aim to enhance the session header and status information display:

• [Feature]: Display Project Name and Git Status in TUI #7927: Display Project Name and Git Status in TUI
• [FEATURE]: Native StatusLine Hook for Plugins (Context-Free Display) #8619: Native StatusLine Hook for Plugins (Context-Free Display)

Feel free to ignore if your specific use case differs from these issues.

[AksharP5]

this is not a duplicate of those