fix(node2): Use node_cache router_healthy for DAGI Router agents status

- Fix get_dagi_router_agents to use router_healthy from node_cache first
- Fallback to direct API call only if cache is unavailable
- This fixes NODE2 agents showing as 'stale' when router is actually healthy
- Fix CITY_SERVICE_URL in scripts (remove /api/city, use /api)

scripts/start-node2-guardian.sh

@@ -26,7 +26,7 @@ export NODE_NAME="НОДА2"
 export NODE_ENVIRONMENT="development"
 export NODE_ROLES="gpu,ai_runtime"
 export NODE_HOSTNAME="$(hostname)"
-export CITY_SERVICE_URL="https://daarion.space/api/city"
+export CITY_SERVICE_URL="https://daarion.space/api"
 export NODE_SWAPPER_URL="http://localhost:8890"
 export NODE_ROUTER_URL="http://localhost:9102"
 export GUARDIAN_INTERVAL="60"
@@ -38,6 +38,17 @@ echo "   Swapper URL: $NODE_SWAPPER_URL"
 echo "   Router URL: $NODE_ROUTER_URL"
 echo ""
 
+# Export environment variables for node-guardian-loop
+export NODE_ID
+export NODE_NAME
+export NODE_ENVIRONMENT
+export NODE_ROLES
+export NODE_HOSTNAME
+export CITY_SERVICE_URL
+export NODE_SWAPPER_URL
+export NODE_ROUTER_URL
+export GUARDIAN_INTERVAL
+
 # Run node-guardian-loop
 python3 "$PROJECT_ROOT/scripts/node-guardian-loop.py" \
     --node-id "$NODE_ID" \