alice sets namespace standard on scenario34-pending-77644a: write=approve, approver=ai:bob
  set-standard returned HTTP 201
settle 2s for standard settle
alice writes two memories into the governed namespace (should land in pending)
  p1=456a2b97-44b7-4cd6-8db9-1f88c37fc761 p2=2cbeb9d9-9afe-4dc1-8150-77b9b86e4d91
settle 4s for pending queue settle
bob lists pending on node-2
  pending queue has 2 entries
bob approves p1, rejects p2
  approve HTTP 200; reject HTTP 200
settle 5s for decision fanout
charlie reads the namespace — expects ONLY approved marker
  charlie sees approved=1 rejected=0