alice sets namespace standard on scenario34-pending-2cb992: 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=894c3a20-d4c8-44d4-b4f8-a7525f658ad9 p2=3d69ba99-c577-41e5-961e-e5d7b8998997
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