alice sets namespace standard on scenario34-pending-4b36b4: 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=179cdcb4-d71e-4d5c-90a9-9c848cf7ae46 p2=f05a09a8-6a85-405f-80e0-ad3d61c76586
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