Orders for indicators development - Options - new

I need a reliable, clean-coded Expert Advisor built for both MetaTrader 4 and MetaTrader 5 platforms. Main trading behavior: The EA follows buy and sell arrows produced by my custom indicator. Whenever a buy arrow shows up on the chart: if a sell position is currently open → close that sell immediately and enter a buy trade in its place. Whenever a sell arrow appears: if a buy position exists → close the buy and

// Add this to your EA after ExportState() function void SendToBase44(const string state, const string dir, double entry, double sl, double tp) { string url = " https://preview-sandbox--ee0a32a725b788974de435e8cef40b7a.base44.app/api/functions/receiveEAState "; string headers = "Content-Type: application/json\r\n"; string json = "{" "\"symbol\":\""+_Symbol+"\","