refactor: drop unused DailyLoginBonuses table + importer

The captured shape ({"1":[], "3":[], "4":[]}) is the empty-period
wire echo; the client parser (LoadDetail.cs:553) only reads normal/total/
campaign. Table, entity, seed, and importer were never wired to a code path.

Replaced by config-section catalog + service in the follow-up commits.

SVSim.Database/Repositories/Globals/IGlobalsRepository.cs

@@ -19,7 +19,6 @@ public interface IGlobalsRepository
     Task<List<UnlimitedRestrictionEntry>> GetUnlimitedRestrictions();
     Task<List<LoadingExclusionCardEntry>> GetLoadingExclusionCards();
     Task<List<BattlePassLevelEntry>> GetBattlePassLevels();
-    Task<List<DailyLoginBonusEntry>> GetDailyLoginBonus();
     Task<List<BannerEntry>> GetBanners();
     Task<IReadOnlyList<HomeDialogEntry>> GetActiveHomeDialogsAsync(DateTime nowUtc);
     Task<SealedConfig?> GetCurrentSealedSeason();