Mouse wheel scroll not working in agent view (v2.1.148)

Description

In Claude Code v2.1.148, mouse wheel scrolling no longer works in agent view. Instead, a yellow warning appears at the bottom:

Scroll wheel is sending arrow keys use PgUp/PgDn to scroll

Environment

• Version: v2.1.148
• Platform: Linux (WSL2)
• Shell: bash

Expected Behavior

Mouse wheel should scroll the agent view up and down, as it did in previous versions.

Actual Behavior

Mouse wheel input is interpreted as arrow keys instead of scroll commands. Users must use PgUp/PgDn keys to navigate.

Steps to Reproduce

1. Open Claude Code v2.1.148
2. Navigate to agent view
3. Try to scroll using mouse wheel
4. Observe yellow warning message at bottom

Impact

This breaks the expected scrolling behavior and forces users to use keyboard-only navigation in agent view.

Workaround

Use PgUp/PgDn keys for scrolling as suggested by the warning message