[BUG] `promptSuggestionEnabled: false` not respected, suggestions still appear

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

My workflow involves pressing Enter in terminals to identify the active window (empty command = harmless in a shell), but in Claude Code this selects and sends the suggestion since suggestions just assume <Enter> without <Tab> or anything should send a message I didn't type.

Settings file:
{
"promptSuggestionEnabled": false
}

What Should Happen?

With promptSuggestionEnabled: false, no suggestions should appear.

Error Messages/Logs

Steps to Reproduce

1. Install latest Claude code
2. Turn off suggestions
3. Use Claude code, get suggestions

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

I don't remember, it was back in November

Claude Code Version

2.0.76

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

OS is Artix, terminal is Kitty