- Add migration 013_city_map_coordinates.sql with map coordinates, zones, and agents table
- Add /city/map API endpoint in city-service
- Add /city/agents and /city/agents/online endpoints
- Extend presence aggregator to include agents[] in snapshot
- Add AgentsSource for fetching agent data from DB
- Create CityMap component with interactive room tiles
- Add useCityMap hook for fetching map data
- Update useGlobalPresence to include agents
- Add map/list view toggle on /city page
- Add agent badges to room cards and map tiles
- matrix-presence-aggregator v2 with SSE endpoint
- Created @presence_daemon Matrix user
- SSE proxy in Next.js /api/presence/stream
- Updated frontend to use SSE instead of WebSocket
- Real-time city online count and room presence
