Build a Slack bot that reads employee data from a provided JSON file and responds to HR queries. The bot should support two commands: /list: returns all user first names with their departments. /query : returns specific details (e.g., email, phone) about a user. Only department is required; other fields may be missing. You have 1 hour to complete the task. { "emily": { "department": "Engineering", "manager": "john", "phone": "555-1234", "email": "emily@example.com", "first_name": "Emily", "last_name": "Chen" },
