编写一个比较简单的MT4黄金网格自动交易程序

Project: Re‑create MoonDog V3 EA for XAUUSD, M15 timeframe. Strategy: gentle soft martingale, not aggressive infinite martingale. Deliver full unlocked MQ5 source code. No account lock, no machine‑binding, can run on unlimited VPS instances. All parameters adjustable: initial lot, add‑lot multiplier, add‑distance(pips), take‑profit, maximum add layers, total max drawdown limit, trading hour filter. Output detailed