[FEATURE] Clear distinction in VS Code plugin between main agent and sub-agent entries

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

Right now, when Claude starts a sub-agent in the VS Code estension, the log entries for commands executed by the subagent look the same as those in the main agent. Same for the TODO lists. This makes it difficult to understand what is being included in the main agent context.

Proposed Solution

Use a different color, or indentation, to make it easy to understand what is related to the main agent or a subagent

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

Other

Use Case Example

_No response_

Additional Context

There is this existing request: https://github.com/anthropics/claude-code/issues/11950

Option 3 from it would also solve the problem, if the entries from the subagent, when expanded, had an indentation.