backend: store adaptive rate changes as events and serve an audit of them per line

backend/src/MoShiro.Backend.Api/Contracts/ApiJsonContext.cs

@@ -18,6 +18,7 @@ namespace MoShiro.Backend.Api;
 [JsonSerializable(typeof(IdDto))]
 [JsonSerializable(typeof(OverviewDto))]
 [JsonSerializable(typeof(SeriesDto))]
+[JsonSerializable(typeof(AdaptiveDto))]
 [JsonSerializable(typeof(CompareDto))]
 [JsonSerializable(typeof(DistributionDto))]
 [JsonSerializable(typeof(HeatmapDto))]