no-mistakes(document): Update 5→6 node references and Mumuni placement across all docs

scripts/prose-lint.sh

@@ -90,16 +90,12 @@ echo "── 3. Cross-contract consistency ──"
 
 # Check that contracts referencing each other have correct names
 if [ -f "infrastructure-control.prose.md" ]; then
-  # Any contract that claims to check "all 5 PVE nodes" should name them
+  # Any contract that claims to check "all 6 PVE nodes" should name them
   for f in *.prose.md; do
     [ -f "$f" ] || continue
-    if grep -q "5-node\|5 node\|5 Proxmox\|all.*PVE.*node" "$f" 2>/dev/null; then
-      for node in amdpve minipve storepve acerpve ocupve; do
-        grep -q "$node" "$f" || {
-          echo "  ⚠️  $f: references 5 nodes but '$node' not mentioned"
-          WARNINGS=$((WARNINGS + 1))
-        }
-      done
+    if grep -qE "\b5-node\b|\b5 node\b|\b5 Proxmox\b|all 5 PVE" "$f" 2>/dev/null; then
+      echo "  ⚠️  $f: still references 5-node cluster (migrated to 6 nodes 2026-07-20)"
+      WARNINGS=$((WARNINGS + 1))
     fi
   done
 fi