feat: add hyperliquid plugin to Eliza framework with ws support

[AIFlowML]

🚀 Add Hyperliquid Plugin

Overview

This PR introduces a new plugin for interacting with the Hyperliquid perpetual DEX, providing a robust interface for trading operations, real-time market data access, and WebSocket integrations within the Eliza framework.

Key Features

• 🔄 Real-time WebSocket Integration
  • Live orderbook updates with auto-reconnect
  • Efficient subscription management
  • Robust connection handling
• 📊 Market Data Access
  • L2 orderbook data streaming
  • Comprehensive meta information
  • Real-time price feeds
• 💹 Trading Operations
  • Advanced order management (place/modify/cancel)
  • Position tracking
  • Fill history monitoring
• 🔐 Security
  • Wallet-based authentication
  • Message signing
  • Secure private key handling

Technical Implementation

• Modular architecture with separate transport layers (HTTP, WebSocket, Exchange)
• Comprehensive error handling with custom error types
• Full TypeScript support with detailed type definitions
• Extensive test coverage for all components

Testing

All components have been thoroughly tested against the mainnet API:

• ✅ HTTP Transport (9/9 tests passing)
• ✅ WebSocket Transport (2/2 tests passing)
• ✅ WebSocket Actions (2/2 tests passing)
• ✅ Exchange Operations (17/19 tests passing) some actions depend on the coins status.

Important Notes

⚠️ The testnet environment is currently unavailable. All tests and validations have been performed using mainnet API with real credentials.

Documentation

• Comprehensive README with setup instructions
• Detailed API documentation for all actions
• Usage examples and error handling patterns
• Environment configuration guide

Dependencies

• ethers.js for wallet operations
• axios for HTTP requests
• ws for WebSocket connections

Breaking Changes

None - This is a new plugin addition

Future Improvements

• Add support for testnet when available
• Implement additional order types
• Enhance error recovery mechanisms
• Add rate limiting controls

Screenshots

[AIFlowML]

Im gonna add more stuff in it before merge.

[AIFlowML]

Merged a Double