alice sets namespace standard on scenario34-pending-1d3e15: 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=e42c49ea-47f6-4c4f-ace4-8d96d709444c p2=6636d65c-3ef5-4a33-8238-bdb02ac02cef
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