- replace reaction-based helper text with !yes/!no and !skill commands
- resolve confirm and cancel through pending confirmation state
- render !settings as a read-only status dashboard
- drop reaction event handling from Matrix bot
- render OutgoingUI as text with !yes/!no instructions
- persist pending confirmations when UI buttons are sent
- register archive and rename as client-aware closure handlers
- rename matrix rooms via stored surface_ref when a client is available
- keep archive scoped to core chat state for phase 1
- create new chat rooms inside the user's space
- store space-aware room metadata with next_chat_id
- handle room creation failures with user-facing messages
