A reader asks again when its consumer was made after its first view, says every silent drop, and carries what it heard in its status (issue 1966)

A consumer is made from now (ADR 0443): an event said before it was made is never delivered to it and no later event
shows the loss. The event hub tells a part when the bus made its consumer, and a follower asked before that asks
again. Events passed over, at or below the held revision, or of a state not followed are now said in the log. The
status carries the highest revision heard and why the picture is behind it.

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

go/process/event_hub.go

@@ -23,6 +23,7 @@ type EventHub struct {
 	mu     sync.RWMutex
 	routes []hubRoute
 	cons   jetstream.ConsumeContext
+	bound  []func(created time.Time)
 }
 
 type hubRoute struct {
@@ -56,6 +57,15 @@ func (h *EventHub) Handle(pattern string, handle func(jetstream.Msg)) error {
 	return nil
 }
 
+// OnBound registers f, told each time the hub binds the module's consumer, with when the bus made it. A consumer is made
+// from now (ADR 0443), so an event said before it was made is not delivered to it: a part that took a picture before
+// that must ask its owner again (views.Follower.ConsumerMade). Register before Start.
+func (h *EventHub) OnBound(f func(created time.Time)) {
+	h.mu.Lock()
+	h.bound = append(h.bound, f)
+	h.mu.Unlock()
+}
+
 // Patterns are the registered subject patterns, in order.
 func (h *EventHub) Patterns() []string {
 	h.mu.RLock()
@@ -83,6 +93,14 @@ func (h *EventHub) Start(ctx context.Context, js jetstream.JetStream, cred Accou
 	if err != nil {
 		return fmt.Errorf("the consumer %s on %s is not heard: %w", cred.EventConsumerName(), EventsStream, err)
 	}
+	if info, ierr := cons.Info(ctx); ierr != nil {
+		h.logf("events: the consumer %s on %s is heard, but its information is not read (%v): a first view taken before it was made is not asked again", cred.EventConsumerName(), EventsStream, ierr)
+	} else {
+		h.logf("events: the consumer %s on %s is heard; the bus made it at %s", cred.EventConsumerName(), EventsStream, info.Created.UTC().Format(time.RFC3339))
+		for _, f := range h.bound {
+			f(info.Created.UTC())
+		}
+	}
 	return nil
 }