The heartbeat kept a review stand from ageing by appending a minute of fresh
telemetry every 30s. It was a crutch for demos, not something a developer needs,
and it carried a state file, a tag-and-prune cycle and a per-tick Redis top-up
with it. All of it goes; --degrade / --recover / --showcase and the base seed
stay.
The Redis key shapes and the depth staging move to seed-agent-examples-redis.mts
so the scenario kit can stage the same keys the same way.
Katia Bulatova
cca0d536ff