Initial commit: Fireblocks Web3 integration for Chain 138

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

README.md

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+# Fireblocks Web3 Integration — Chain 138
+
+Dedicated RPC and documentation for **Fireblocks** Web3 integrations on **Chain 138** (D-BIS / Defi Oracle Meta Mainnet).
+
+This repository is a **submodule** of the [proxmox](https://gitea.d-bis.org/d-bis/proxmox) infrastructure repo. It holds Fireblocks-specific docs and config references.
+
+---
+
+## Quick reference
+
+| Use | URL |
+|-----|-----|
+| **HTTP RPC (public)** | `https://rpc-fireblocks.d-bis.org` |
+| **WebSocket RPC (public)** | `wss://ws.rpc-fireblocks.d-bis.org` |
+| **Chain ID** | `138` |
+
+**Verify:**
+```bash
+curl -s -X POST https://rpc-fireblocks.d-bis.org \
+  -H "Content-Type: application/json" \
+  -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'
+# Expected: "result":"0x8a"
+```
+
+---
+
+## Contents
+
+- **[docs/FIREBLOCKS_WEB3_INTEGRATION.md](docs/FIREBLOCKS_WEB3_INTEGRATION.md)** — Full integration guide: Console custom network, Web3 Provider (SDK), REST API, hosting/DNS/SSL, verification.
+- **.env.example** — Recommended env vars for `RPC_URL_138_FIREBLOCKS` and `WS_URL_138_FIREBLOCKS`.
+
+---
+
+## Parent repo
+
+Infrastructure (NPMplus proxy hosts, DNS, SSL, RPC node VMID 2301) is managed in the **proxmox** repo:
+
+- RPC endpoints master: `docs/04-configuration/RPC_ENDPOINTS_MASTER.md`
+- RPC node types: `docs/05-network/RPC_NODE_TYPES_ARCHITECTURE.md`
+
+---
+
+## License
+
+Same as parent (proxmox) unless stated otherwise.