alice sets namespace standard on scenario34-pending-ea16c3: 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=fcbdc253-bd9a-46ec-933e-b2e2f434ab7f p2=439b5366-ea1b-4b95-a68b-20011a6f5d63
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