After https://github.com/bitcoin/bitcoin/pull/27037 miniscript is extracted from compatible scripts, unless the `FillableSigningProvider::AddCScript` check for `MAX_SCRIPT_ELEMENT_SIZE` fails, which then it falls back to legacy behavior.

@achow101 
}
        if (input.non_witness_utxo) {
            txout = input.non_witness_utxo->vout[psbtx.tx->vin[i].prevout.n];
            UniValue non_wit(UniValue::VOBJ);
            TxToUniv(*input.non_witness_utxo, uint256(), non_wit, false);
            in.pushKV("non_witness_utxo", non_wit);
            have_a_utxo = true;
        }
        if (have_a_utxo) {
            if (MoneyRange(txout.nValue) && MoneyRange(total_in + txout.nValue)) {
                total_in += txout.nValue;
            } else {
                
                have_all_utxos = false;
            }
        } else {
            have_all_utxos = false;
        }
        
        if (!input.partial_sigs.empty()) {
            UniValue partial_sigs(UniValue::VOBJ);
            for (const auto& sig : input.partial_sigs) {
                partial_sigs.pushKV(HexStr(sig.second.first), HexStr(sig.second.second));
            }
            in.pushKV("partial_signatures", partial_sigs);
        }
        
        if (input.sighash_type != std::nullopt) {
            in.pushKV("sighash", SighashToStr((unsigned char)*input.sighash_type));
        }