Area 5 (join 11): mesh-recovery fills a restore point's names when it takes the point

Builds: design 47 G A-230 (answers G-22)

Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h

modules/mesh-recovery/internal/recovery/points.go

@@ -130,6 +130,7 @@ func (e *Engine) take(ctx context.Context, a *Act) error {
 			return e.endedFailed(a, err)
 		}
 		p.Digests = append(p.Digests, seat.Digest{Name: o.Stream, Digest: sum})
+		p.Names = append(p.Names, o.Stream)
 		p.Size += n
 		p.Consumers = append(p.Consumers, o.Consumers...)
 		if e.filled()+p.Size > e.Settings.Cap {

modules/mesh-recovery/internal/recovery/points_test.go

@@ -41,6 +41,10 @@ func TestATakenPointIsListedWithItsDigestsAndEndedUnderItsAct(t *testing.T) {
 	if err != nil || len(pts) != 1 || pts[0].Snapshot != ev.Snapshot {
 		t.Fatalf("points %+v %v", pts, err)
 	}
+	// A-230: the point says the bus names it took, one per bus object, as its digests name them.
+	if len(pts[0].Names) != 2 || len(pts[0].Digests) != 2 || pts[0].Names[0] != pts[0].Digests[0].Name || pts[0].Names[1] != pts[0].Digests[1].Name {
+		t.Errorf("names %v for digests %+v", pts[0].Names, pts[0].Digests)
+	}
 	if _, ok, _ := r.d.Get("app/notes/2-fp1"); !ok {
 		t.Errorf("no digests on the bus: %v", r.d.m)
 	}