[FEATURE] Add option to disable/collapse diff output in terminal

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'm using Claude Code on a remote dev machine via Cloud IDE (VSCode web).
Large diff outputs cause significant terminal lag and are not useful for my workflow.

Environment:

• Remote development machine
• VSCode Cloud IDE
• No GPU acceleration available

Proposed Solution

Request: Add a flag like --no-diff or a setting to disable/collapse diff display.

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_