alice sets namespace standard on scenario34-pending-6778fe: 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=132dea4a-7703-4204-9e66-9b08039b6970 p2=84ee18b3-6dd1-47b9-aff9-8f5169d8f64d
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