alice sets namespace standard on scenario34-pending-9a81bf: 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=7b70c169-1620-440f-83de-a0b00ff0dc8d p2=e1b1d916-1832-430d-80d2-5a0256dbdbc2
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