A running status shows 'running since', a stale one shows no age, since its
time is when the run began. The reference now says the status reads and the row
lookups are two passes, so the list waits up to four seconds in all.
The subagents list reads each subagent's status from the subagent-status
bucket and reports its state, when it began and the exit status. A subagent
with no status keeps the newest-row lookup, so an older daemon lists as before.
The swarm UI uses the state when there is one and the row-age guess otherwise.
The subagent daemon stamps Swarm-Model and Swarm-Effort on each row it
publishes. The list endpoint reads them off the newest row it already fetches,
so a long-running subagent keeps them past the stream's 24 hour window, and the
terminal page's menu and the agent panel's list show them beside the name.
An N running subagents badge opens a list of the agent's subagents, each a
link to its terminal, so you can switch without going back to the agents page.
A subagent counts as running when it published a row in the last 15 minutes;
the quiet ones are listed below it, dimmed. The list under the preview and the
menu now share one fetch hook and one definition of running.
