[BUG] Fee Model does not match SV Node

[sirdeggen]

Bug Description

go-sdk and therefore ARC will use this to calculate appropriate fees:

(uint64(math.Ceil(float64(size) / 1000))) * s.Satoshis

BUT in C++ code of the SV Node (which is currently mining blocks for now) it's calculated differently.

Amount CFeeRate::GetFee(size_t nBytes_) const {
    assert(nBytes_ <= uint64_t(std::numeric_limits<int64_t>::max()));
    int64_t nSize = int64_t(nBytes_);

    Amount nFee = nSize * nSatoshisPerK / 1000;

    if (nFee == Amount(0) && nSize != 0) {
        if (nSatoshisPerK > Amount(0)) {
            nFee = Amount(1);
        }
        if (nSatoshisPerK < Amount(0)) {
            nFee = Amount(-1);
        }
    }

    return nFee;
}

The ts-sdk is actually correct:

const fee = Math.ceil((size / 1000) * this.value)

The math.ceiling is never called in SV Node, there is no floor!