The process writes, in its state consumers, when its durable consumer's oldest
unacknowledged message was delivered, at each delivery and acknowledgement; the
bundle's runner_health reads it and the pipelines state, and names a consumer
five minutes or more behind. The process resource's health is that tool.
Builds: design 47 G §76, §468, §495; lead answers A-164, A-166
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h