Desktop app: text rendering breaks when window height exceeds threshold on Intel Mac

<img width="1247" height="804" alt="Image" src="https://github.com/user-attachments/assets/ff012770-6fc6-4db8-9887-0fe9ef535e67" />
<img width="1144" height="549" alt="Image" src="https://github.com/user-attachments/assets/ff76266e-b035-4409-a417-8a396831f964" />

Description

On Intel Mac, when the desktop app window height exceeds a certain threshold, the text rendering breaks — text gets clipped/cut off on the left side, making messages partially unreadable.

Steps to reproduce

1. Open Claude Code desktop app on Intel Mac
2. Resize the window height beyond a certain point (roughly the size shown in screenshots)
3. Observe that message text becomes clipped on the left edge

Expected behavior

Text should render fully regardless of window size.

Actual behavior

Text is cut off on the left side. The beginning of lines is not visible. See screenshots below.

Screenshots

Bug visible — text clipped on left side

!screenshot1

Smaller window — shows the threshold

!screenshot2

Environment

• Platform: macOS (Intel Mac)
• App: Claude Code Desktop
• Model: Opus 4.6