mesh-knowledge: give a never-reviewed notice its resolved line when raised, and test a refused clear and local time in a set zone (review of #219)

The operator's channel edits a cleared message with the resolved line it was raised with, so one sent only with
the clear was never shown.

modules/mesh-knowledge/cmd/mesh-knowledge/kit_test.go

@@ -400,6 +400,7 @@ type world struct {
 	// toldKeys are the keys told under, and cleared what was cleared: key, then its resolved line.
 	toldKeys []string
 	cleared  [][2]string
+	resolved []string // the resolved line given with each notice raised
 	clock    time.Time
 }
 
@@ -410,8 +411,8 @@ func newWorld(t *testing.T, s Store, records Records) *world {
 	w.k = &KB{Store: s, Records: records, Reserve: w.tracker.reserve, Judge: w.judge.judge, Asks: w.router,
 		Emit: w.said.emit, Settings: func() (Settings, error) { return Settings{}, nil }, Now: func() time.Time { return w.clock },
 		Logf: func(f string, a ...any) { t.Logf(f, a...) },
-		Notify: func(key, summary, headline, explanation string) error {
-			w.told, w.toldKeys = append(w.told, summary), append(w.toldKeys, key)
+		Notify: func(key, summary, headline, explanation, resolved string) error {
+			w.told, w.toldKeys, w.resolved = append(w.told, summary), append(w.toldKeys, key), append(w.resolved, resolved)
 			return nil
 		},
 		Clear: func(key, resolved string) error { w.cleared = append(w.cleared, [2]string{key, resolved}); return nil }}