[Feature Request] Preserve custom aliases and color settings when using /clear command

Feature Description
I wish there was a way for /clear to clear the context but leave my /rename and /color setups.

This is more important now that Claude sessions have the ability to message each other. Keeping a static worktree name + named session paired allows for agents to have a consistent map of where work is happening in monorepos, for example

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.232
• Feedback ID: 7d8fec25-8f37-45e5-a820-475736667140