[BUG] RTL text direction not supported in input field (Arabic language)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

When typing Arabic text in the Claude Code VSCode extension input field,
the text appears reversed (LTR instead of RTL).
The messages are received correctly by Claude, but the display in the
input field is incorrect for RTL languages like Arabic.

<img width="1026" height="762" alt="Image" src="https://github.com/user-attachments/assets/96a6737f-0a8b-44a0-9f40-9366a69ffd47" />

What Should Happen?

When typing Arabic text in the Claude Code VSCode extension input field,
the text appears reversed (LTR instead of RTL).
The messages are received correctly by Claude, but the display in the
input field is incorrect for RTL languages like Arabic.

<img width="1026" height="762" alt="Image" src="https://github.com/user-attachments/assets/426f6adb-e89c-482d-9457-a75eeb199868" />

Error Messages/Logs

Steps to Reproduce

When typing Arabic text in the Claude Code VSCode extension input field,
the text appears reversed (LTR instead of RTL).
The messages are received correctly by Claude, but the display in the
input field is incorrect for RTL languages like Arabic.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

claude

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

<img width="1026" height="762" alt="Image" src="https://github.com/user-attachments/assets/6827b08b-8878-4c02-81aa-49521fe9617b" />