RateProblem records how the participant rates the problem, from 1 (bad) to 5 (good) stars, with an optional comment for the problem's editors. It is eolymp.atlas.ProblemService.RateProblem for a problem the participant can see through the contest: the rating goes to the archive problem and replaces the member's previous one, and 0 stars withdraws it. Refused while the space has ratings off.