Maximum Trade Volume

This EA is not a trading strategy but a margin calculation utility tool. Its core concept is to compute the maximum lot size available for each order type (buy, sell, pending buy, pending sell) based on the account's free margin and current market prices. Entry and exit conditions are not applicable since it does not execute trades. Position sizing logic uses the OrderCalcMargin function to determine the margin required for 1 lot, then divides the available free margin by the per-lot margin requirement to derive the maximum lot size, rounding down to the nearest valid lot step via MathFloor. Money management relies on AccountInfoDouble(ACCOUNT_MARGIN_FREE) to obtain the current free margin as the calculation basis, and uses SymbolInfoDouble to fetch the symbol's minimum lot, maximum lot, and lot step for normalization. However, there is a critical bug: in LotCheckPendingBuy and LotCheckPendingSell, the '||' operator is used to combine two order type enum values, which performs a bitwise OR operation producing an invalid enum value rather than a logical selection. Additionally, the calculated lot size is never clamped against SYMBOL_VOLUME_MAX, so it may return values exceeding the broker's maximum allowed lot size.