alice sets namespace standard on scenario34-pending-5550f6: 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=1417efc1-b8b8-4e84-865e-c8d173cfcef1 p2=8f0bdbfc-0627-4140-b3b2-cea6f2ccd3e8
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