NODE1 healthcheck (2025-11-30)

[city-service]
CMD: curl -s http://localhost:7001/health
OUT: {"status":"healthy","service":"city-service"}
STATUS: OK

[gateway]
CMD: curl -s http://localhost:9300/health
OUT: (connection refused)
STATUS: FAIL (service not reachable on localhost:9300)

[NATS]
CMD: nc -z localhost 4222
OUT: Connection succeeded
STATUS: OK

[Postgres]
CMD: docker exec dagi-postgres psql -U postgres -d postgres -c 'SELECT 1'
OUT: 1
STATUS: OK

Notes: matrix/gateway health endpoint недоступний за localhost:9300 і через DNS-імена; потрібно уточнити адресу сервісу або додати health endpoint.
