alice sets namespace standard on scenario34-pending-d4bb04: 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=a17fa069-c3b1-4d33-b989-fa1319a3aa25 p2=d71ac45b-5d61-457e-9739-ca104b1cf7cc
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