As a TT expert mentioned, you'll want to track your contributions to your Roth because you might need to know that some day later, like if you want to take some money out after five years but before 59.5. We did that once when we bought a house. I don't think TT is the best place to do that, though they do offer an option under retirement accounts. Personally I just ignore it.
Regarding the $100 Roth bonus from Fidelity, did they send you a 1099? You might check the tax dashboard just in case. Otherwise, I think they're counting it as income within your Roth IRA, so it's neither a contribution (by you) nor taxable interest (since it ended up in a roth account.)
