Terminal child receipt from the node owner or the host that delegated it.
A claimed node is bound by its fence; the figures are reported by the
caller and stay bounded by the node and chain budgets.
Bind a host-launched child agent to one fenced claim of its node. The host
starts the process; LeanCTX verifies the handed-over context capsule, holds
the node and path leases, and issues the child’s delivery profile when the
host is configured as delivery issuer. A receipt or cancel ends it; an
expired lease is stopped on the next claim. Every stop revokes delivery.