Add visible insertion point for terminal text editors (vim, nano) #12388
Description
What would you like to be added?
When running vim or nano inside Gemini CLI’s embedded shell, there’s currently no visible insertion point (text cursor).
Why is this needed?
when typing it’s unclear where text is being entered or which line the user is on. This makes editing text files inside the embedded shell difficult.
Additional context
Expected behavior
A visible insertion point (caret or block cursor) should appear and update dynamically as the user navigates or types inside terminal-based editors.
Possible solutions
- Implement terminal cursor rendering (similar to how some REPLs or shells visualize it).
- Check if the PTY or TTY layer can expose cursor position and propagate it to the CLI interface.