alice sets namespace standard on scenario34-pending-c1aadf: 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=26270b8d-f0b6-4dd8-b55d-6a9c6c17562a p2=2dce0e92-6b16-4163-99f7-1b31d3b3d836
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