Request mirrors LoginPostParams (device telemetry); response is empty
because all signup outputs live in data_headers (viewer_id, short_udid,
udid). MessagePackObject + Key mirrors JsonPropertyName per project
convention.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- IndexResponse.BattlePassLevelInfo widened to IReadOnlyDictionary<string,BattlePassLevel>?
so any IReadOnlyDictionary impl (FrozenDictionary, wrapper, etc.) serializes correctly
instead of silently null-ing via a failed as-cast
- LoadController.Index now takes CancellationToken ct and threads it to GetLevelCurveAsync
instead of CancellationToken.None
- BattlePassRepository.ResetLevelCurveCache changed from public to internal; added
InternalsVisibleTo("SVSim.UnitTests") to SVSim.Database.csproj (was absent)
