Resolve conflicts:
- backend/src/server.ts: keep main's getPresence + closeRoom (room auto-cleanup)
and add the graph imports/routes (additive).
- frontend/src/App.tsx: take main's shadcn command-center UI and re-integrate
GraphView — import, graphPodId state, an early-return render branch, and a
shadcn "Team memory" button next to Refresh.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
