This function executes the primary logic for initiating a trade.

• Computes the opening price, take-profit levels, and stop-loss based on symbol information and user-provided parameters.
• Prepares a trade request (MqlTradeRequest) with essential details such as symbol, volume, order type, deviation, comment, magic number, etc.
• Invokes the OrderSend function to dispatch the trade request and obtain the result.

SetTypeFillingBySymbol function:

• This function determines the order fill type (Fill or Kill, Immediate or Cancel, or Return) based on the symbol's filling policy.

GetMinTradeLevel function:

• Calculates the minimum trading level by considering the freeze level and symbol stops level. Adjusts the minimum level to ensure it falls within specific limits and returns the result."