[FEATURE] Config to resize the context buffer.

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

The context buffer could be resizable per user configuration. I'd like to make the buffer larger (smaller context window), for instance.

Proposed Solution

Configuration to resize the context buffer.

Feature Category

CLI commands and flags