docs: Ledger Live integration, contract deploy learnings, NEXT_STEPS updates

- ADD_CHAIN138_TO_LEDGER_LIVE: Ledger form done; public code review repo bis-innovations/LedgerLive; init/push commands
- CONTRACT_DEPLOYMENT_RUNBOOK: Chain 138 gas price 1 gwei, 36-addr check, TransactionMirror workaround
- CONTRACT_*: AddressMapper, MirrorManager deployed 2026-02-12; 36-address on-chain check
- NEXT_STEPS_FOR_YOU: Ledger done; steps completable now (no LAN); run-completable-tasks-from-anywhere
- MASTER_INDEX, OPERATOR_OPTIONAL, SMART_CONTRACTS_INVENTORY_SIMPLE: updates
- LEDGER_BLOCKCHAIN_INTEGRATION_COMPLETE: bis-innovations/LedgerLive reference

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/verify-all-systems.sh.bak

@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+# Comprehensive verification of all deployed systems
+# Tests: Explorer, APIs, Services, MetaMask integration
+
+set -euo pipefail
+
+GREEN='\033[0;32m'
+RED='\033[0;31m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+PASSED=0
+FAILED=0
+
+test_endpoint() {
+  local name="$1"
+  local url="$2"
+  local expected="$3"
+  
+  echo -n "Testing $name... "
+  if curl -sf --max-time 10 "$url" | grep -q "$expected"; then
+    echo -e "${GREEN}PASS${NC}"
+    ((PASSED++))
+  else
+    echo -e "${RED}FAIL${NC}"
+    ((FAILED++))
+  fi
+}
+
+echo "========================================="
+echo "System Verification — All Services"
+echo "========================================="
+echo ""
+
+echo "1. Explorer (Blockscout)"
+test_endpoint "Explorer homepage" "https://explorer.d-bis.org/" "SolaceScanScout"
+test_endpoint "Explorer stats API" "https://explorer.d-bis.org/api/v2/stats" "total_blocks"
+test_endpoint "Explorer blocks API" "https://explorer.d-bis.org/api/v2/blocks" "height"
+echo ""
+
+echo "2. MetaMask Integration"
+test_endpoint "Wallet page" "https://explorer.d-bis.org/wallet" "Add Chain 138"
+test_endpoint "Networks config" "https://explorer.d-bis.org/api/config/networks" "chains"
+test_endpoint "Token list" "https://explorer.d-bis.org/api/config/token-list" "tokens"
+echo ""
+
+echo "3. RPC Nodes"
+echo -n "Testing RPC endpoint... "
+if curl -sf --max-time 10 -X POST https://rpc-http-pub.d-bis.org \
+  -H "Content-Type: application/json" \
+  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}' | grep -q "result"; then
+  echo -e "${GREEN}PASS${NC}"
+  ((PASSED++))
+else
+  echo -e "${RED}FAIL${NC}"
+  ((FAILED++))
+fi
+echo ""
+
+echo "4. Token-Aggregation API (Internal)"
+echo -n "Testing market health... "
+if curl -sf --max-time 10 "http://192.168.11.140:3001/health" | grep -q "healthy"; then
+  echo -e "${GREEN}PASS${NC}"
+  ((PASSED++))
+else
+  echo -e "${RED}FAIL${NC}"
+  ((FAILED++))
+fi
+
+echo -n "Testing market chains... "
+if curl -sf --max-time 10 "http://192.168.11.140:3001/api/v1/chains" | grep -q "chainId"; then
+  echo -e "${GREEN}PASS${NC}"
+  ((PASSED++))
+else
+  echo -e "${RED}FAIL${NC}"
+  ((FAILED++))
+fi
+echo ""
+
+echo "5. Service Status (VMID 5000)"
+ssh root@192.168.11.12 "pct exec 5000 -- bash -c '
+  for service in blockscout explorer-config-api token-aggregation nginx; do
+    echo -n \"  \$service: \"
+    if systemctl is-active \$service &>/dev/null; then
+      echo -e \"${GREEN}Running${NC}\"
+    else
+      echo -e \"${RED}Stopped${NC}\"
+    fi
+  done
+'"
+echo ""
+
+echo "========================================="
+echo "Summary"
+echo "========================================="
+echo -e "Passed: ${GREEN}$PASSED${NC}"
+echo -e "Failed: ${RED}$FAILED${NC}"
+echo ""
+
+if [ $FAILED -eq 0 ]; then
+  echo -e "${GREEN}✅ All systems operational${NC}"
+  exit 0
+else
+  echo -e "${RED}⚠️  Some tests failed${NC}"
+  exit 1
+fi