I need a Node.js module that plugs straight into the Angel One SmartAPI and gives me two core capabilities: 1) real-time market data feed in JSON, and 2) full order-management control (place, modify, cancel, position and trade status). The job covers every step from authentication through to clean shutdown, including reconnection logic, rate-limit handling, and clear error reporting. Please wire the code so I can subscribe to multiple instruments simultaneously, stream tick data with minimal latency, and dispatch orders immediately off the same connection. Deliverables should include: • Well-structured Node.js code (ES6 or later) with comments • README explaining setup, env variables, and sample calls • Postman collection or curl snippets for quick testing • Brief demo script that prints live ticks, then sends a sample order I’ll consider the task complete once I can run the demo, see live JSON ticks flowing, and execute a test order without manual intervention.