feat: add claude context

TICKET: WP-000000

Author: mohammadalfaiyazbitgo

CLAUDE.md

@@ -0,0 +1,116 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Build and Development Commands
+
+### Installation
+```bash
+yarn install
+```
+
+### Development
+```bash
+# Watch mode for development (compiles all TypeScript packages and watches for changes)
+yarn dev
+
+# Single build of all packages
+yarn
+```
+
+### Linting
+```bash
+# Lint all packages
+yarn lint
+
+# Lint only changed files
+yarn lint-changed
+
+# Fix linting issues
+yarn lint-fix
+```
+
+### Testing
+```bash
+# Run all unit tests
+yarn unit-test
+
+# Run unit tests for a specific module
+yarn run unit-test --scope bitgo
+
+# Run unit tests for files containing specific string
+yarn run unit-test -- -- --grep "keyword"
+
+# Run unit tests only for changed modules since master
+yarn unit-test-changed
+
+# Run integration tests
+yarn integration-test
+
+# Generate test coverage
+yarn coverage
+```
+
+### Browser Compatibility
+```bash
+# Run browser tests
+yarn browser-tests
+
+# Build for production
+yarn compile
+
+# Build for development
+yarn compile-dbg
+```
+
+## Code Architecture
+
+BitGoJS is a monorepo composed of multiple modules, each implementing specific functionality:
+
+### Core Modules
+- `bitgo`: Main module providing authentication, wallet management, cryptographic primitives, and coin interfaces
+- `@bitgo/sdk-core`: Core SDK functionality, base classes, and interfaces
+- `@bitgo/sdk-api`: API client utilities
+- `@bitgo/statics`: Static configuration values used across the platform
+
+### Coin Implementation Modules
+- `@bitgo/sdk-coin-*`: Individual cryptocurrency implementations (e.g., btc, eth, sol, etc.)
+- `@bitgo/abstract-eth`, `@bitgo/abstract-utxo`, etc.: Abstract base classes for similar coin families
+
+### Transaction Building and Signing
+- `@bitgo/account-lib`: Build and sign transactions for account-based coins
+- `@bitgo/utxo-lib`: Build and sign transactions for UTXO-based coins
+
+### Other Utility Modules
+- `@bitgo/blockapis`: Access public block explorer APIs for various coins
+- `@bitgo/express`: Local BitGo transaction signing server and proxy
+- `@bitgo/unspents`: Utilities for UTXO chains
+
+## Architecture Overview
+
+The BitGoJS SDK follows a modular architecture:
+
+1. **Coin Factory Pattern**: The `CoinFactory` allows dynamic registration and instantiation of different cryptocurrency implementations
+
+2. **Multi-signature Wallets**: Core functionality revolves around creating and managing multi-signature wallets across various blockchains
+
+3. **Transaction Building**: Each coin type has builders for constructing, signing, and broadcasting transactions
+
+4. **Abstraction Layers**: Common functionality shared across similar blockchains is abstracted into base classes (e.g., `abstractEthLikeCoin`, `abstractUtxoCoin`)
+
+5. **TSS (Threshold Signature Scheme)**: Support for advanced cryptographic operations, including MPC (Multi-Party Computation) for secure key management
+
+6. **Module Independence**: Each cryptocurrency module can be used independently, allowing users to include only the functionality they need
+
+## Adding New Coins
+
+To implement a new coin:
+```bash
+yarn sdk-coin:new
+```
+
+This will generate the necessary boilerplate for a new coin implementation.
+
+## Node.js Version Support
+
+BitGoJS supports Node.js versions >=18 and <23, with NPM >=3.10.10.