alice sets namespace standard on scenario34-pending-c4f5db: 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=7a06b401-111f-402e-aa5d-a1c646e49072 p2=af41a435-96b5-4636-905c-d9b256ca4e40
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