VS Code extension: controls for edited-file expansion and hover previews

What variant of Codex are you using?

IDE Extension (openai.chatgpt@26.5803.61601) in VS Code 1.133.0 on Linux.

What feature would you like to see?

Please add two independent display controls for edited-file cards:

• Expand edited-file diffs by default
• Show diff preview when hovering edited-file cards

Both behaviors should be independently configurable. My preferred defaults are disabled.

When disabled:

• Edited-file cards remain collapsed until explicitly clicked.
• Hovering a completed edited-file card does not open a large diff preview.
• Clicking the filename, manually expanding the card, and using Review continue to work.

Additional information

In edit-heavy conversations, expanded diffs consume substantial vertical space. The hover preview can cover most of the conversation and interrupt reading merely because the pointer crosses the card.

I locally validated both UX changes against extension version 26.5803.61601: collapsed-by-default works, removing the completed-turn diff hover wrapper prevents the large preview, and manual expansion plus Review remain available. No proprietary extension bundles are attached.

A repository issue search for edited file card hover preview expand diff returned no matching report before submission.

Start from the VS Code extension's edited-file cards and the completed-turn diff hover wrapper mentioned in the issue, then trace how card expansion and hover previews are currently controlled. Done means two independent settings disable default expansion and completed-card hover previews while filename clicks, manual expansion, and Review still work.