Three endpoints + 9 integration tests. Captured-data-is-catalog: viewer's
achievement Level starts at MIN(Level) per type from the catalog (not 1),
so the assembler always has a row to render against.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds BattlePassSalesPeriodInfoDto, BattlePassProductDto, BattlePassItemListResponse DTOs,
GetItemListAsync on BattlePassService (one product if not premium + CanPurchase, empty if
already premium or off-season), and the /battle_pass/item_list controller action.
2 new integration tests; all 408 pass.
- 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)
