alice sets namespace standard on scenario34-pending-c12f7b: 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=6e16cf69-b2f9-44a6-b1b3-b2bb70ba7aa0 p2=36888028-4190-4bdd-b668-bac9bb66b295
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