alice sets namespace standard on scenario34-pending-476c4f: 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=23f81d8e-d698-4e5f-aaaf-9131112e45af p2=28a759b3-cff4-41e8-af3a-fd06def8ecb9
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