Cannot paste text in VSCode extension chat input field

Description

Pasting text does not work in the VSCode extension chat input field.

Steps to Reproduce

1. Open Claude Code in VSCode extension
2. Try to paste text into the chat input field via:

• Right-click → Paste
• Cmd+V

Expected Behavior

Text should be pasted into the input field.

Actual Behavior

• Right-click → Paste: Menu appears but clicking "Paste" does nothing
• Cmd+V: No effect

Workaround

Pasting works fine in the terminal-based Claude Code (claude command).

Environment

• macOS: 15.4.1 (24E263)
• Claude Code: 2.1.73
• Interface: VSCode extension (not terminal)