WebSearch permission 'ask' not prompting user

settings.local.json has WebSearch set to ask permission mode, but web searches execute without
prompting the user for approval.

### Config

\\\json
{
\"permissions\": {
\"ask\": [
\"WebSearch\"
]
}
}
\\\

### Expected
Claude should prompt before executing any WebSearch call.

### Actual
Multiple WebSearch calls executed in a single session with no prompt.

### Environment

• macOS Darwin 25.3.0 (arm64)
• Claude Code CLI"