Whisper Auto

### Fixed

- **Critical:** Removed duplicate event handlers that overwrote the main logic. The second `OnEvent` and `OnUpdate` scripts were replacing the correct implementation, which broke:

  - Manual reply detection (`CHAT_MSG_WHISPER_INFORM`, `CHAT_MSG_BN_WHISPER_INFORM`) — players were no longer removed from the pending list when you replied manually

  - Battle.net whisper handling — BNet whispers were passed incorrectly to `SendAutoReply`

- **Critical:** Fixed `/wa clear` and `/wa list` commands — they were using undefined variables `pendingWhispers` and `pendingGuildMentions` instead of `WhisperAutoCharDB`

- **Critical:** Fixed undefined `wasInActivity` variable (removed with duplicate code block)

- Fixed player name comparison for cross-realm — now correctly ignores own whispers when sender is `Name-Realm` format

- Fixed `CHAT_MSG_WHISPER_INFORM` — correctly removes players from pending list when replying manually (supports both `Name` and `Name-Realm` formats)

### Changed

- Replaced `OnUpdate` with `C_Timer.NewTicker` for status checks — more efficient, less CPU usage

- Added fallback to `OnUpdate` for WoW versions without `C_Timer` (e.g. Classic 1.15)

- Cooldown (`lastWhisperTime`) now persists across `/reload` — stored in `WhisperAutoCharDB`

- Consolidated slash commands — removed duplicate definitions

- Improved locale auto-detection — `ukUA` and `ruRU` clients now default to Ukrainian interface

### Technical

- Added `lastWhisperTime` to `WhisperAutoCharDB` for SavedVariables persistence

- Simplified locale detection logic in `WhisperAutoLocals.lua`