Add playMinimapPing() to UiSoundManager with MapPing.wav (falls back to
target select sound). Play the ping sound in MSG_MINIMAP_PING handler
when the sender is not the local player. Provides audio feedback for
party member map pings, matching WoW behavior.
Adds UiSoundManager::playWhisperReceived() which uses the dedicated
Whisper_TellMale/Female.wav files (or falls back to iSelectTarget.wav
if absent). The sound is triggered once per new incoming CHAT_MSG_WHISPER
message by scanning new chat history entries in the raid warning overlay
update loop.
- Parse SMSG_ACHIEVEMENT_EARNED (guid + achievementId + PackedTime date)
and fire AchievementEarnedCallback for self, chat notify for others
- Add renderAchievementToast() to GameScreen: slides in from right,
gold-bordered panel with "Achievement Earned!" title + ID, 5s duration
with 0.4s slide-in/out animation and fade at end
- Add triggerAchievementToast(uint32_t) public method on GameScreen
- Wire AchievementEarnedCallback in application.cpp
- Add playAchievementAlert() to UiSoundManager, loads
Sound\Interface\AchievementSound.wav with level-up fallback
- SMSG_ALL_ACHIEVEMENT_DATA silently consumed (no tracker UI yet)
