[FEATURE]

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

I frequently rewind conversations but write most code directly in my IDE. There's no way to disable code restoration, so I risk accidentally overwriting my IDE edits when using the rewind feature.

Proposed Solution

Add a setting to disable code restore while keeping conversation rewind:

```json
{
"checkpointing": {
"enableCodeRestore": false
}
}

When disabled, only "Conversation only" would be available in the rewind menu.

### Alternative Solutions

Make "Conversation only" the default/only option when this setting is enabled, or add a confirmation prompt before restoring code.

### Priority

Medium - Would be very helpful

### Feature Category

Configuration and settings

### Use Case Example

_No response_

### Additional Context

_No response_