KeyStoneMastery

## [1.8.4] - 2026-04-21

### Fixed

- Hardened own snapshot persistence max-level gating to fail closed while level APIs are unresolved, preventing sub-max characters from being written during login/character-swap timing windows.

- Added same-short-name alias cleanup for own records so stale cross-realm variants (for example `Name-OtherRealm`) are purged when saving the active character snapshot.

- Corrected BugGrabber issue provenance: the `Frame:RegisterEvent()` forbidden-call report was observed from `1.8.3` runtime behavior.

- Removed runtime `RegisterEvent` calls from login initialization; runtime events now bind once at addon load to avoid recurring `Frame:RegisterEvent()` forbidden-call captures.

- Added preferred-name store resolution for guild snapshots so short-name updates reuse existing full-name keys and stop short/full duplicate resurfacing.

- Fixed challenge timer limit parsing to reject bogus tuple values (for example large texture/file IDs) and normalize millisecond-vs-second returns, preventing absurd completion-time displays.

- Aligned elapsed Mythic+ timer sourcing with Blizzard tracker updates by caching `ScenarioObjectiveTracker.ChallengeModeBlock:UpdateTime` elapsed seconds and using API polling only as fallback.