CAT-C11, CAT-V3: follow A2's views follower (Changed also says when)

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

modules/mesh-config/cmd/mesh-config/ownerviews.go

@@ -79,7 +79,7 @@ func newOwnerViews(ask func(key string, body any) (json.RawMessage, error), chan
 				}
 				return views.DecodeAnswer(answer)
 			},
-			Changed: func(string, json.RawMessage, bool) { changed() }}
+			Changed: func(string, json.RawMessage, bool, time.Time) { changed() }}
 		fol.Raise = func(s views.Status) {
 			if k, v, err := views.UnansweredFinding(Module, s, time.Now()); err == nil {
 				_ = put(k, v)

modules/mesh-vault/cmd/mesh-vault/placementview.go

@@ -49,7 +49,7 @@ func newPlacementView(ask func(key string, body any) (json.RawMessage, error), g
 			say("the vault has no first view of the assigner's placement: %s has not answered since %s (%s); it keeps asking", s.Tool,
 				s.Asked.Format(time.RFC3339), s.Error)
 		},
-		Changed: func(key string, _ json.RawMessage, deleted bool) {
+		Changed: func(key string, _ json.RawMessage, deleted bool, _ time.Time) {
 			if deleted {
 				gone(key)
 			}