[FEATURE] Make the Find function work in the Plan document in VS Code

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

When reviewing plan documents, it would be very helpful to be able to use the Find function in VS Code to find what you're looking for. Currently you can't do that because selecting Find from the menu or pressing Ctrl+F does nothing.

Proposed Solution

I'd like to be able to press Ctrl+F or select Edit/Find and have the Find popup open so I can search for words or phrases in the Plan document.

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

Developer tools/SDK

Use Case Example

I'm reviewing a Plan document generated by Claude Code. I want to find something. So I press Ctrl+F and type the word or phrase I'm looking for.

Additional Context

_No response_