alice sets namespace standard on scenario34-pending-7512ab: 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=0a213102-19a8-40ed-89c7-6673c27e3104 p2=a8b45a3b-6148-4d98-8de9-4ec3cfe3966a
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