fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

fix: avoid keeping 1c demo seed connection alive

test: silence expected Kafka delivery errors

fix: avoid keeping 1c demo seed connection alive

test: silence expected Kafka delivery errors

test: cover infrastructure contracts

test: cover consumer failure handling

test: cover producer failure boundaries

fix: fix error of overwriting new messages

feat: add full tests

feat: add makefile fast commands

feat: add Grafana monitoring

feat: add full tests

feat: add makefile fast commands

feat: add Grafana monitoring

fix: fix error of overwriting new messages

fix: fix error of overwriting new messages

feat: add full tests

feat: add makefile fast commands

feat: add Grafana monitoring

fix: fix error of overwriting new messages

feat: add full tests

feat: add makefile fast commands

feat: add Grafana monitoring