A waiting call's ask's 60 minutes are a key with its own time to live in the
holder's state approvals, its end heard as the bus's marker, so no clock waits
in the process; a call whose key ended while the holder was away is judged at
its start. A process holder's act names no node, so two instances raise one ask.
Builds: design 47 G §677, lead answer A-255
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h