Function parse_position_status_report 

pub fn parse_position_status_report(
    position: &AxPosition,
    account_id: AccountId,
    instrument: &InstrumentAny,
    ts_init: UnixNanos,
) -> Result<PositionStatusReport>

Parses an Ax position into a Nautilus [PositionStatusReport].

Reports the signed fill-ledger cost-basis average with [AvgPxReconciliation::OpeningOnly] semantics.

Errors

Returns an error if:

• Position quantity parsing fails.
• Timestamp conversion fails.