alice sets namespace standard on scenario34-pending-6d54f5: 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=3ed06327-f6fe-4d1c-ba73-14f867a0e32b p2=3f6feac8-b5d2-466b-baea-86db52e812fc
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