Feature Request: Improve Terminal Responsiveness and Input Field Handling

What feature would you like to see?

I would like to see improved terminal responsiveness and input field handling for the Codex CLI interface. Currently, when the terminal window is resized, the command input area creates multiple duplicate placeholders that stack vertically, causing poor user experience.

Current Issue:

• Terminal resize creates multiple stacked placeholder-like input fields
• Only the bottommost input field remains functional
• Excessive vertical scrolling is required to review previous outputs
• Difficult to navigate when using automated reading/editing features

Desired Solution:

1. Single responsive input field that adapts to terminal width without duplication
2. Proper content reflow when terminal is resized
3. Maintained scroll position for efficient review of previous commands and outputs
4. Clean interface similar to other terminal applications that handle resize gracefully

This enhancement would significantly improve productivity for users who frequently resize terminals or use multiple terminal sizes across different screens.

Are you interested in implementing this feature?

I am interested in contributing to this feature implementation. While I may need guidance on the codebase architecture, I'm willing to:

• Help with testing across different terminal sizes and operating systems
• Assist with UI/terminal interface improvements
• Collaborate on the responsive design implementation
• Provide feedback during development and testing phases

Additional information

Environment Details:

• Operating System: Linux v24.3.0 (Linux Mint)
• IDE: VS Code
• Related Commit: 6209d49

Visual Evidence:
<img width="399" height="701" alt="Image" src="https://github.com/user-attachments/assets/43ed91d1-f134-4712-9c9e-534678a915e5" />

Impact Assessment:

• Affects users with dynamic workspace setups
• Particularly problematic for automated reading/editing workflows
• Creates unnecessary cognitive load when reviewing command history
• May discourage usage in multi-monitor or flexible workspace environments

Related Issues:
This appears to be related to terminal width handling, which may connect to other terminal responsiveness discussions in the repository.

Technical Considerations:

• Should maintain compatibility across different terminal emulators
• Consider various screen sizes and resolutions
• Ensure accessibility standards are maintained
• Test with different shell environments (bash, zsh, fish, etc.)