Remove /help commands from chat history

[ErykCh]

Issue

I just wanted to check /help function to ask questions. After two questions I checked /tokens and what I saw:

I think responses from /help shouldn't be inserted to chat history.

Version and model info

Aider v0.43.5-dev Models: openrouter/anthropic/claude-3.5-sonnet with diff edit format, weak model openrouter/anthropic/claude-3-haiku Git repo: .git with 96 files Repo-map: using 2028 tokens Added .aider.memory.md to the chat.