Retrieve all open trading orders for the authenticated user
200 - Successfully retrieved open orders (may be empty array)401 - Unauthorized - invalid or expired token500 - Internal server error/api/v1/trade/create to open new positionsprofit field to see unrealized gains/losses/api/v1/trade/close to close positions/api/v1/trade/close for closed order historymessage field contains a JSON-stringified array that should be parsed by the client