alice sets namespace standard on scenario34-pending-43a6c9: 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=c27b8459-67d2-4501-81c1-43c600ee5073 p2=13f84d31-7243-492f-8e2f-8535697a10cf
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