handoff

Generate a structured cold-agent handoff brief (YAML frontmatter + Obsidian markdown + YON blocks) that any fresh LLM session can pick up and execute. Trigger when the user runs /handoff or says "create a handoff", "dispatch to a fresh agent", "hand this to a cold session", "switch to a new session", "I have N tasks for cold agents", "package this for another agent". Use /orchestrate-mode instead when you want to…