alice sets namespace standard on scenario34-pending-d6ce92: 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=35a746ab-dbdf-4b89-901c-81b9b3ae1b4f p2=d7d713ce-29cb-4a04-8f5b-f4b9ac81670e
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