J2: a state read carries the time the bus wrote the value, as at (stdio.StateEntry.At)

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

node-tools/internal/bus/state_pernode_test.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 	"sync"
 	"testing"
+	"time"
 
 	"github.com/novox/mesh-tools/node-tools/internal/bus"
 	mt "github.com/novox/mesh-tools/node-tools/internal/meshtest"
@@ -47,7 +48,7 @@ func TestAPerNodeStateIsServedAcrossEveryNodesBucket(t *testing.T) {
 		return nil
 	})
 
-	if e, err := conn.StateGet("mesh-provisioner", "mesh-host.composed", "b.m2.f2"); err != nil || e == nil || e.Key != "b.m2.f2" {
+	if e, err := conn.StateGet("mesh-provisioner", "mesh-host.composed", "b.m2.f2"); err != nil || e == nil || e.Key != "b.m2.f2" || e.At.IsZero() || time.Since(e.At) > time.Minute {
 		t.Fatalf("get from the second node's bucket: %+v, %v", e, err)
 	}
 	if e, err := conn.StateGet("mesh-provisioner", "mesh-host.composed", "q.m.f"); err != nil || e != nil {