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/enable-txpool-rpc.sh

@@ -5,6 +5,12 @@
 
 set -euo pipefail
 
+# Load IP configuration
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+source "${PROJECT_ROOT}/config/ip-addresses.conf" 2>/dev/null || true
+
+
 VMID="${1:-2500}"  # Default to RPC node 2500
 RPC_CONFIG="/etc/besu/config-rpc.toml"
 
@@ -100,7 +106,7 @@ if [ "$USE_PCT" = true ]; then
     sleep 5
     
     # Verify TXPOOL is enabled
-    RPC_IP=$(pct exec "$VMID" -- hostname -I | awk '{print $1}' 2>/dev/null || echo "192.168.11.250")
+    RPC_IP=$(pct exec "$VMID" -- hostname -I | awk '{print $1}' 2>/dev/null || echo "${RPC_ALLTRA_1:-${RPC_ALLTRA_1:-192.168.11.250}}")
     RPC_URL="http://${RPC_IP}:8545"
     
     log_info "Verifying TXPOOL is enabled on $RPC_URL..."