CLI is the era and likely gonna be until some more LLM/AI-focused interfaces appear, and they are not gonna look like human UIs. There's a reason all models use bash and code, not a GUI shell, for their internal sandboxen.
Making LLM/AIs use mouse and keyboard makes no sense. They are a human interface tailored to human strengths and limitations, and arguably even for humans CLI is a superior interface for many tasks.