Major changes:
- Normalize get_node_endpoints to use ENV vars (ROUTER_BASE_URL, SWAPPER_BASE_URL)
- Remove node_id-based URL selection logic
- Add fallback direct API call in get_node_swapper_detail
- Fix Swapper API endpoint (/models instead of /api/v1/models)
- Add router_healthy and router_version to node_heartbeat fallback
- Add ENV vars to docker-compose for Router/Swapper URLs
Documentation:
- Add TASK_PHASE_NODE2_ROUTER_SWAPPER_FIX.md with full task description
- Add NODE2_GUARDIAN_SETUP.md with setup instructions
This fixes:
- Swapper models not showing for NODE1 and NODE2
- DAGI Router agents not showing for NODE2
- Router/Swapper showing as Down/Degraded when they're actually up
- 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-gateway: POST /internal/matrix/presence/online endpoint
- usePresenceHeartbeat hook with activity tracking
- Auto away after 5 min inactivity
- Offline on page close/visibility change
- Integrated in MatrixChatRoom component
