Hear what providers retire, and let a person approve, reject and delete (hq ADR 0230)

A provider now waits for a person before retiring more than three consumers
or half of what it holds, and deletes only when asked. The controller is that
person's way in: it keeps waiting and rejected sets as conditions, answers them
with retire approve|reject, lists and deletes retired consumers through the
provider's own tools on its machine, records each act in the hand-act log, and
probes for anything retired longer than thirty days (D11).

cmd/mesh-controller/push.go

@@ -181,6 +181,12 @@ func serve(ctx context.Context) (err error) {
 	if err := server.Watches(standings{keeper: func() *conditions.Keeper { return conditionsFrom }}); err != nil {
 		return err
 	}
+	// And what they say about consumers the mesh stopped asking for: one waiting for a person is an
+	// urgent condition, and an act asked of a provider some other way is recorded by hand (ADR 0230).
+	if err := server.KeepsRetirements(retirements{keeper: func() *conditions.Keeper { return conditionsFrom },
+		record: recordHandActOnTheBus}); err != nil {
+		return err
+	}
 
 	// And the mesh's own verbs, as the seat this control plane holds (novox/hq ADR 0154). Served
 	// from the store's row, so what the seat declares is what is answered.