signals.go BusUserWords: the node-tools special word is gone (the node-engine's node.<node> user stays, a bus account form, not a
module name). The watchman's ControlNodeModule (signals.go:591, nats) and builderModule (names.go:17) went with A-197 and WM13.
Builds: design 47 G §7, §428
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h