GATE2: the whole-module test counts the merges handed in the state merges, the merge as an owed act being left out of the join

Builds: design 47 G §160, tests 34, 39 (eb131beb left out, G §167, §542)

Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ

modules/mesh-delivery-gate/cmd/mesh-delivery-gate/bus_test.go

@@ -16,6 +16,7 @@ import (
 	"os"
 	"os/exec"
 	"reflect"
+	"strconv"
 	"strings"
 	"sync"
 	"testing"
@@ -697,7 +698,7 @@ func TestAPassingVerdictAsksTheApproveAndItsApproveMergesWithinSecondsOverARealB
 		var d Delivery
 		return err == nil && json.Unmarshal(e.Value(), &d) == nil && d.State == Merged
 	})
-	if n := len(rt2.mergesSaid()); n != 0 || len(onlyAskKeys(b)) > 1 {
+	if n := len(rt2.mergesSaid()); n != merges || len(onlyAskKeys(b)) > 1 {
 		t.Fatalf("the restarted gate said the merge %d more times (%d before), or asked again: %v", n, merges, onlyAskKeys(b))
 	}
 	// Quiet follows: nothing asks the forge or the controller again with no event to say so.
@@ -908,3 +909,25 @@ func mustDecode[T any](t *testing.T, raw []byte) T {
 // (issue 1404). A failed first ask is asked again only after askAgainAfter (30 s, react.go), and 20 s deliberately does not
 // cover that: a failed first ask still fails the test.
 const eventWithin = 20 * time.Second
+
+// mergesSaid are the writes of the gate's state merges, the merges it handed to the forge bridge, in order (the old form of
+// the merge: eb131beb, the merge as an owed act, is left out of the join).
+func (r *runtime) mergesSaid() []string {
+	ctx := context.Background()
+	kv := r.b.kvs["merges"]
+	keys, err := kv.Keys(ctx)
+	if err != nil {
+		return nil
+	}
+	var out []string
+	for _, k := range keys {
+		hist, err := kv.History(ctx, k)
+		if err != nil {
+			continue
+		}
+		for _, e := range hist {
+			out = append(out, k+"@"+strconv.FormatUint(e.Revision(), 10))
+		}
+	}
+	return out
+}