alice sets namespace standard on scenario34-pending-2a1a70: 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=b1fd86be-f470-4f1e-907e-27fcfb872f77 p2=e2374dba-f743-46b2-8c17-72ef14f3bd5c
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