grants part, indexer and checker read the seat list again through the sdk's ReloadIfUnread; the checker's hub binds a late consumer (B9e; issue 1966)

Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i

modules/mesh-delivery-checker/cmd/mesh-delivery-checker/main.go

@@ -461,12 +461,10 @@ func run(ctx context.Context, getenv func(string) string, logOut io.Writer) erro
 		return nil
 	}
 	reader.Start(ctx, js, cred, process.AwaitBucket(ctx, js, conn, firstViewsBucket, "checker_first_views reads nothing and checker_first_view_again is not heard", logger.Printf))
-	// Every part has registered. Where the consumer is not there yet no package registry's published is heard and a group's
-	// check fails at its publish bound until the checker starts again.
-	if err := hub.Start(ctx, js, cred); err != nil {
-		logger.Printf("%v, so no package registry's published is heard and a group's check fails at its publish bound until the checker starts again", err)
-	} else {
-		readIfUnread(seats.reader)
+	// Every part has registered. Where the consumer is not there yet the hub binds it as soon as it is, and the seat list is read
+	// again then if it is still unread.
+	if err := hub.StartUntilBound(ctx, js, cred, nil, func() { readIfUnread(seats.reader) }); err != nil {
+		logger.Printf("%v, so no package registry's published is heard until the consumer is there; the checker tries again", err)
 	}
 	defer hub.Stop()
 	// The checks, the tries and the hand asks, once every first view is answered (the lead's ruling for DLV-M2): a check

modules/mesh-delivery-checker/cmd/mesh-delivery-checker/seatlist.go

@@ -54,8 +54,7 @@ func (s seatList) Definitions() ([]json.RawMessage, error) {
 // checker's consumer existed, whose events start at the stream's end: the first read found it silent and nothing else reads
 // again until its next event, so while the list is unread it is read now, on a goroutine of its own (ADR 0636 §1).
 func readIfUnread(reader *seatlist.Reader) {
-	if reader == nil || reader.Status().Heard {
-		return
+	if reader != nil {
+		reader.ReloadIfUnread()
 	}
-	go func() { _ = reader.Reload() }()
 }

modules/mesh-delivery-indexer/cmd/mesh-delivery-indexer/seatlist.go

@@ -142,9 +142,7 @@ func readWhenBound(reader *seatlist.Reader, states ...bucket) {
 	}
 	for _, state := range states {
 		state.Ready(func(jetstream.KeyValue) {
-			if !reader.Status().Heard {
-				go func() { _ = reader.Reload() }()
-			}
+			reader.ReloadIfUnread()
 		})
 	}
 }

modules/mesh-grants/cmd/mesh-grants/seatlist.go

@@ -54,11 +54,9 @@ func (g *seatGate) follow(bus seatlist.Bus, changed func(), logf func(string, ..
 // part reads it now (ADR 0636 §1), on a goroutine of its own so the pass is not held; the reader changes the catalogue and wakes
 // the part when the seat answers, and stays unread, to be read at the seat's next event, when it does not.
 func (g *seatGate) eventsLive() {
-	r := g.reader.Load()
-	if r == nil || r.Status().Heard {
-		return
+	if r := g.reader.Load(); r != nil {
+		r.ReloadIfUnread()
 	}
-	go func() { _ = r.Reload() }()
 }
 
 // tools are the two tools over whatever reader the gate holds at the call.