Record whether a node is adopted and which modules were taken on it (hq ADR 0100)

cmd/mesh-controller/board.go

@@ -137,6 +137,9 @@ type view struct {
 	Unresolved []blockedMachine
 	// Network is why the private network could not be computed, when it could not.
 	Network string
+	// Adopted is every node still adopted (novox/hq ADR 0100). Not broken: nothing forces the
+	// flip, so a node left adopted is shown rather than read as converged.
+	Adopted []string
 	At      string
 }
 
@@ -181,7 +184,7 @@ type staleModule struct {
 
 func viewOf(asked answers) view {
 	out := view{Machines: len(asked.nodes), At: time.Now().Format("15:04:05"),
-		Network: asked.network}
+		Network: asked.network, Adopted: adoptedNodes(asked.nodes)}
 	var blocked []string
 	for name := range asked.refused {
 		blocked = append(blocked, name)
@@ -311,6 +314,10 @@ new, switched off, or unreachable.</p>
 <p class="quiet">Never told is not out of date: nobody has asked that machine to be anything yet.
 Both are sent by <code>push --behind</code>.</p>
 {{else}}<p class="quiet">Every machine is running what the mesh would send it.</p>{{end}}
+{{if .Adopted}}
+<h2>Which machines are adopted?</h2>
+<ul>{{range .Adopted}}<li><strong>{{.}}</strong> <span class="quiet">adopted — what was found on it is kept until each module is taken</span></li>{{end}}</ul>
+{{end}}
 {{end}}
 
 <footer>Read at {{.At}}. This page holds nothing and changes nothing.</footer>