Paste (right-click / Ctrl+Shift+V) broken in WezTerm on WSL2 — regression from older versions

Description

In Claude Code v2.1.195, pasting text into the chat input box is completely broken when using WezTerm on WSL2. Both mouse-based paste (right-click) and keyboard paste (Ctrl+Shift+V) are non-functional. This worked correctly in older versions of Claude Code.

Environment

• Claude Code version: 2.1.195
• Terminal: WezTerm (Windows app connecting to WSL2)
• OS: WSL2 (Linux 6.6.87.2-microsoft-standard-WSL2)

Steps to Reproduce

1. Open Claude Code in WezTerm on WSL2
2. Copy any text to clipboard
3. Try to paste with right-click or Ctrl+Shift+V in the chat input box

Expected Behavior

Pasted text appears in the chat input box (as it did in older Claude Code versions).

Actual Behavior

Nothing happens. Neither right-click paste nor Ctrl+Shift+V inserts any text into the input box.

Investigation

• Left-click text selection + copy works fine (WezTerm handles this at the terminal emulator level)
• The issue affects both mouse-based paste and keyboard paste, suggesting Claude Code is not correctly processing paste input received via PTY
• WezTerm mouse bindings (including SHIFT modifier to bypass mouse reporting) have no effect
• This is a regression — older Claude Code versions handled paste correctly in the same environment
• The chat:imagePaste action bound to ctrl+v in keybindings.json may be related, as it intercepts the standard paste shortcut

Workaround

Use Ctrl+G to open an external editor, paste there, then save to return content to the input box.