pub const ONBOARDING_GREETING: &str = "Hey! I'm Brain \u{2014} your personal memory engine. \
I run locally on your machine and I'm here to remember what matters to you. \
I don't know anything about you yet, so let's fix that. What's your name?";Expand description
Hardcoded greeting for first-ever chat session (0 facts). Printed directly — no LLM call needed.