S6 grants-wait-asks-ready: grants' wait for its catalog half asks the catalog client's Ready, so a mesh naming no branch is none-yet

Builds: design 47 G A-369 (G-22-lead-answers-2.md)

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

modules/mesh-grants/internal/grants/catalog.go

@@ -74,6 +74,10 @@ func (c *CatalogOf) Resolve(fingerprint string) (meshcatalog.CatalogEntry, meshc
 func (c *CatalogOf) Waiting() []string {
 	followed := c.Branches.Followed()
 	if len(followed) == 0 {
+		// A mesh whose registrations and gate's source are answered and name no branch is none-yet, as for every part (A-369).
+		if c.Branches.Ready() == nil {
+			return nil
+		}
 		return []string{"no branch is followed yet (the registrations and the gate's source are not answered)"}
 	}
 	var out []string

modules/mesh-grants/internal/grants/catalogwait_test.go

@@ -0,0 +1,51 @@
+package grants
+
+import (
+	"context"
+	"encoding/json"
+	"testing"
+	"time"
+
+	"git.novox.be/novox/mesh-delivery/modules/mesh-delivery-contracts/go/clients/meshcatalogclient"
+	seat "git.novox.be/novox/mesh-delivery/modules/mesh-delivery-contracts/go/seats/meshcatalog"
+	"git.novox.be/novox/mesh-sdk/go/views"
+)
+
+type wiring struct{ followers []*views.Follower }
+
+func (w *wiring) Adopt(f *views.Follower, _, _ string, _ func(context.Context, []byte) error) error {
+	w.followers = append(w.followers, f)
+	return nil
+}
+func (w *wiring) Drop(string, string) error { return nil }
+
+// Design 47 G A-369: the grants part's wait for its catalog half asks the catalog client's Ready, so a mesh whose registrations
+// and gate's source are answered and name no branch is none-yet for grants, and waits while either is not answered.
+func TestAMeshThatNamesNoBranchIsNoWaitForGrants(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	call := func(key string, _ any) (json.RawMessage, error) {
+		if key == meshcatalogclient.RegistrationsVerb {
+			return json.Marshal(seat.RegistrationsAnswer{Registrations: []seat.Registration{}})
+		}
+		return json.Marshal(map[string][]string{"branches": {}})
+	}
+	for _, answered := range []bool{false, true} {
+		w := &wiring{}
+		b, err := meshcatalogclient.NewBranches(w, call)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if answered {
+			for _, f := range w.followers {
+				if err := f.Start(ctx); err != nil {
+					t.Fatal(err)
+				}
+			}
+		}
+		got := (&CatalogOf{Branches: b, Context: ctx}).Waiting()
+		if (len(got) == 0) != answered {
+			t.Errorf("answered %v: waiting %v", answered, got)
+		}
+	}
+}