[FEATURE] Jetbrains : Show changes with the red and green lines in editor, the same as copilot and jetbrains ai do.

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

Currently, the changes that have been made to code are shown highlighted with red and green sections in the terminal. not only is this massively impractical if there are many changes, its ugly.
Both the github copilot tools and jetbrains ai tools do this in editor, in file, and have buttons to keep or revert. currently, the only way i can see changes in a usable fashion is to use the vcs changes panel. Current state is i can get far better integration using the github co-pilot instance version of opus instead of paying for a separate license. And I'm sure many others notice the same thing.

Proposed Solution

Make it work the same as the jetbrains own ai or copilot do it.

Alternative Solutions

just using the vcs changes comparison tool. its a REALLY poor way of doing it.

Priority

High - Significant impact on productivity

Feature Category

Developer tools/SDK

Use Case Example

I want to refactor a class to be a function in a react component. I will have many changes throughout the file, and if I've asked claude to refactor a component tree from class to function, there will be many files affected. This is straight up untenable when the changes are shown in terminal only.

Additional Context

from

<img width="592" height="167" alt="Image" src="https://github.com/user-attachments/assets/3249a2c5-03db-4b80-b348-f55c641d0c97" />

to

<img width="430" height="102" alt="Image" src="https://github.com/user-attachments/assets/a9e3c7ce-2555-4b98-bfde-e16eafe306ae" />

the key point of difference being that the bottom one is in ide editor window, the first is the remains of an addiition in the terminal.