Provide a way to interrupt mini-agent

[mslinn]

CTRL+C is the only option right now, and you lose work when this is done.

If mini-agent could be interrupted by the user pressing Esc then users would rejoice.

[adao-max]

Thank you for feedback. Will support it

[mslinn]

I published this review: https://mslinn.com/llm/7997-mini-agent.html