Function verify_script_with_context 

pub fn verify_script_with_context(
    script_sig: &Vec<u8>,
    script_pubkey: &[u8],
    witness: Option<&Vec<Vec<u8>>>,
    flags: u32,
    tx: &Transaction,
    input_index: usize,
    prevouts: &[TransactionOutput],
    network: Network,
) -> Result<bool, ConsensusError>

VerifyScript with transaction context for signature verification

This version includes the full transaction context needed for proper ECDSA signature verification with correct sighash calculation.