fix: Replace static m_botReleaseTimes with per-bot storage to prevent race condition

Fixes a thread safety issue where multiple bots dying in battlegrounds
simultaneously would corrupt the shared static unordered_map, causing
segmentation faults.

Changes:
- Remove: static m_botReleaseTimes map from AutoReleaseSpiritAction
- Add: bgReleaseAttemptTime member to PlayerbotAI (per-bot storage)
- Update: All references to use per-bot storage instead of static map

Why this fixes the crash:
- Each PlayerbotAI instance is accessed by only one map update thread
- No cross-thread access to shared data structures
- No mutex/locking required - thread-safe by design
- Automatic cleanup when bot is destroyed

Thread-safe solution: Per-bot state eliminates race conditions without
performance overhead.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/PlayerbotAI.h

@@ -601,6 +601,7 @@ public:
     NewRpgInfo rpgInfo;
     NewRpgStatistic rpgStatistic;
     std::unordered_set<uint32> lowPriorityQuest;
+    time_t bgReleaseAttemptTime = 0;
 
     // Schedules a callback to run once after <delayMs> milliseconds.
     void AddTimedEvent(std::function<void()> callback, uint32 delayMs);

src/strategy/actions/ReleaseSpiritAction.cpp

@@ -192,12 +192,11 @@ bool AutoReleaseSpiritAction::ShouldDelayBattlegroundRelease() const
 {
     // The below delays release to spirit with 6 seconds.
     // This prevents currently casted (ranged) spells to be re-directed to the died bot's ghost.
-    const int32_t botId = bot->GetGUID().GetRawValue();
 
-    // If the bot already is a spirit, erase release time and return true
+    // If the bot already is a spirit, reset release time and return true
     if (bot->HasPlayerFlag(PLAYER_FLAGS_GHOST))
     {
-        m_botReleaseTimes.erase(botId);
+        botAI->bgReleaseAttemptTime = 0;
         return true;
     }
 
@@ -205,14 +204,13 @@ bool AutoReleaseSpiritAction::ShouldDelayBattlegroundRelease() const
     const time_t now = time(nullptr);
     constexpr time_t RELEASE_DELAY = 6;
 
-    auto& lastReleaseTime = m_botReleaseTimes[botId];
-    if (lastReleaseTime == 0)
-        lastReleaseTime = now;
+    if (botAI->bgReleaseAttemptTime == 0)
+        botAI->bgReleaseAttemptTime = now;
 
-    if (now - lastReleaseTime < RELEASE_DELAY)
+    if (now - botAI->bgReleaseAttemptTime < RELEASE_DELAY)
         return false;
 
-    m_botReleaseTimes.erase(botId);
+    botAI->bgReleaseAttemptTime = 0;
     return true;
 }
 

src/strategy/actions/ReleaseSpiritAction.h

@@ -38,7 +38,6 @@ private:
     bool ShouldAutoRelease() const;
     bool ShouldDelayBattlegroundRelease() const;
 
-    inline static std::unordered_map<uint32_t, time_t> m_botReleaseTimes;
     time_t m_bgGossipTime = 0;
 };