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/ccip/ccip-deploy-checklist.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+# Phase 3: CCIP fleet deploy checklist - validate env and print steps.
+# Usage: ./scripts/ccip/ccip-deploy-checklist.sh [--dry-run]
+# Does not deploy nodes; validates prerequisites and prints deployment order from CCIP_DEPLOYMENT_SPEC.
+
+set -euo pipefail
+
+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
+
+echo "[Phase 3] CCIP fleet deploy checklist"
+echo "  Spec: docs/07-ccip/CCIP_DEPLOYMENT_SPEC.md"
+echo ""
+
+FAILED=0
+
+# VMID ranges (from spec)
+echo "VMID ranges:"
+echo "  5400-5401  Ops/Admin"
+echo "  5402-5403  Monitoring"
+echo "  5410-5425  Commit (16)"
+echo "  5440-5455  Execute (16)"
+echo "  5470-5476  RMN (5-7)"
+echo ""
+
+# Optional env checks (CCIP often uses Chainlink node env)
+for v in CCIP_ETH_ROUTER CCIP_ETH_LINK_TOKEN ETH_MAINNET_SELECTOR; do
+  if [[ -z "${!v:-}" ]]; then
+    echo "[WARN] $v not set (required for mainnet CCIP)"
+    ((FAILED++)) || true
+  else
+    echo "[OK] $v set"
+  fi
+done
+
+echo ""
+echo "Deployment order (from spec):"
+echo "  1. Deploy Ops/Admin nodes (5400-5401)"
+echo "  2. Deploy Monitoring nodes (5402-5403)"
+echo "  3. Deploy Commit nodes (5410-5425)"
+echo "  4. Deploy Execute nodes (5440-5455)"
+echo "  5. Deploy RMN nodes (5470-5476)"
+echo "  6. Configure NAT pools (blocks #2-#4 per NETWORK_ARCHITECTURE)"
+echo ""
+echo "Run: see docs/07-ccip/CCIP_DEPLOYMENT_SPEC.md, docs/03-deployment/OPERATIONAL_RUNBOOKS.md § CCIP Operations"
+# Exit 0 so checklist is informational; fix env and re-run if deploying
+exit 0