alice sets namespace standard on scenario34-pending-19c933: write=approve, approver=ai:bob
  set-standard returned HTTP 405
settle 2s for standard settle
alice writes two memories into the governed namespace (should land in pending)
  p1=6cbabdc1-d972-4355-ac30-5d4e9492b334 p2=3e93288d-fb2c-4a29-86a2-81d57f656c42
settle 4s for pending queue settle
bob lists pending on node-2
  pending queue has 0 entries
bob approves p1, rejects p2
  approve HTTP 403; reject HTTP 404
settle 5s for decision fanout
charlie reads the namespace — expects ONLY approved marker
  charlie sees approved=1 rejected=1