alice sets namespace standard on scenario34-pending-fcf9a3: 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=8ac58eb2-b181-4c1d-9c9c-7da738b47e22 p2=ab7e10fd-9611-4480-bcf9-5ec03c1a4c51
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