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>

INTEGRATIONS_QUICK_REFERENCE.md

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+# Integrations Quick Reference
+**Date:** 2026-01-31  
+**Quick lookup for all recommended integrations**
+
+---
+
+## ✅ Active Integrations (Implemented)
+
+### Exchanges (dbis_core)
+- ✅ **Crypto.com OTC** - Institutional OTC, RFQ, settle-later
+- ✅ **Exchange Registry** - Binance, Kraken, Oanda, FXCM price aggregation
+- **API:** `/api/v1/crypto-com-otc`, `/api/v1/exchange` (dbis-api.d-bis.org)
+
+### Fiat On/Off Ramps (metamask-integration)
+- ✅ **MoonPay** - On-ramp + Off-ramp
+- ✅ **Ramp Network** - On-ramp + Off-ramp
+- ✅ **Onramper** - Aggregator (on-ramp + quotes)
+- ✅ **Transak** - On-ramp + Off-ramp
+- ✅ **Banxa** - On-ramp + Off-ramp
+- ✅ **Coinbase Ramps** - On-ramp + Off-ramp
+- ✅ **Stripe Crypto** - On-ramp
+- ✅ **Cybrid** - On-ramp + Off-ramp
+- ✅ **Sardine** - On-ramp
+- ✅ **HoneyCoin** - Off-ramp
+- **API:** `POST /ramps/on-ramp/session`, `POST /ramps/off-ramp/session`, `GET /ramps/quote`, `GET /ramps/providers`
+
+### DeFi Routing (alltra-lifi-settlement)
+- ✅ **1inch** - DEX aggregator quotes
+- ✅ **ParaSwap** - DEX aggregator quotes
+- ✅ **0x Protocol** - DEX aggregator quotes
+- ✅ **Li.Fi** - Cross-chain routing (ChainID 138 NOT supported)
+- **Stubs:** Uniswap, Curve (for future direct pool access)
+
+### Bridges
+- ✅ **CCIP Bridge** - ChainID 138 ↔ Ethereum
+- ✅ **Bridge Vault** - Multi-chain stablecoin bridge
+
+### Infrastructure
+- ✅ **MetaMask** - Wallet integration
+- ✅ **Blockscout** - Block explorer
+- ✅ **Cloudflare** - DNS, SSL, Tunnels
+- ✅ **Proxmox** - Infrastructure management
+
+---
+
+## 🔴 Pending Integrations (High Priority)
+
+### Bridge Providers
+1. **LayerZero** - https://layerzero.network
+2. **Wormhole** - https://wormhole.com
+3. **Socket.tech** - https://docs.socket.tech
+4. **Axelar** - https://axelar.network
+5. **Stargate** - https://stargate.finance
+
+### DEX Providers (Direct - stubs exist)
+1. **Uniswap** - https://uniswap.org (stub in alltra-lifi-settlement)
+2. **Curve** - https://curve.fi (stub in alltra-lifi-settlement)
+
+---
+
+## 💰 Li.Fi Purchase: Quick Steps
+
+**⚠️ Note:** ChainID 138 does NOT support Li.Fi. Bridge to Ethereum first.
+
+### 5-Step Process
+
+1. **Wrap ETH → WETH9** (ChainID 138)
+2. **Approve Bridge** (ChainID 138)
+3. **Bridge to Ethereum** (CCIP)
+4. **Use Li.Fi on Ethereum** (Purchase)
+5. **Verify Balance** (Ethereum)
+
+**Total Time:** ~20-35 minutes  
+**Total Cost:** ~0.017-0.057 ETH + 0.1-2 LINK
+
+**See:** `INTEGRATIONS_AND_LIFI_PURCHASE_GUIDE.md` for complete details
+
+---
+
+## 📞 Contact Information
+
+### Bridge Providers
+- **LayerZero:** https://layerzero.network
+- **Wormhole:** https://wormhole.com
+- **Li.Fi:** support@li.fi, https://discord.gg/lifi
+- **Socket.tech:** https://docs.socket.tech
+
+### On-Ramp Providers
+- **MoonPay:** https://www.moonpay.com/business
+- **Ramp:** https://ramp.network
+- **Transak:** https://transak.com
+
+### DEX Providers
+- **Uniswap:** https://uniswap.org
+- **1inch:** https://1inch.io
+
+---
+
+**Full Guide:** See `INTEGRATIONS_AND_LIFI_PURCHASE_GUIDE.md`