Function generate_ib_trade_id 

pub fn generate_ib_trade_id(
    ts_event: UnixNanos,
    price: f64,
    size: f64,
) -> TradeId

Generate a unique trade ID for Interactive Brokers trades.

This format matches the Python adapter: “{secs}-{price}-{size}”

Arguments

• ts_event - Event timestamp in nanoseconds
• price - Trade price
• size - Trade size