fix(Core/Creature): stop mid-fight summons and proximity aggro from preferring totems/pets over players (#26457)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

src/server/game/Entities/Creature/Creature.cpp

@@ -1925,6 +1925,11 @@ bool Creature::CanStartAttack(Unit const* who, bool force) const
         if (!_IsTargetAcceptable(who))
             return false;
 
+        // Totems never pull proximity aggro; they are only attacked in response
+        // to threat they generate themselves (e.g. Searing Totem)
+        if (who->IsTotem())
+            return false;
+
         if (IsNeutralToAll() || !IsWithinDistInMap(who, GetAggroRange(who) + m_CombatDistance, true, false, false))
             return false;
     }

src/server/game/Entities/Object/Object.cpp

@@ -2337,8 +2337,9 @@ TempSummon* Map::SummonCreature(uint32 entry, Position const& pos, SummonPropert
 
     summon->InitSummon();
 
-    // call MoveInLineOfSight for nearby creatures
+    // call MoveInLineOfSight for nearby players and creatures; players are visited
-    Acore::AIRelocationNotifier notifier(*summon);
+    // first (grid typelist order) so aggressive summons prefer them over pets/totems
+    Acore::AIRelocationNotifier notifier(*summon, true);
     Cell::VisitObjects(summon, notifier, GetVisibilityRange());
 
     return summon;

src/server/game/Grids/Notifiers/GridNotifiers.cpp

@@ -186,6 +186,19 @@ void AIRelocationNotifier::Visit(CreatureMapType& m)
     }
 }
 
+void AIRelocationNotifier::Visit(PlayerMapType& m)
+{
+    if (!includePlayers)
+        return;
+
+    Creature* creature = i_unit.ToCreature();
+    if (!creature || creature->IsMoveInLineOfSightStrictlyDisabled())
+        return;
+
+    for (PlayerMapType::iterator iter = m.begin(); iter != m.end(); ++iter)
+        CreatureUnitRelocationWorker(creature, iter->GetSource());
+}
+
 // Uses visibility map
 void MessageDistDeliverer::Visit(VisiblePlayersMap const& m)
 {

src/server/game/Grids/Notifiers/GridNotifiers.h

@@ -91,9 +91,11 @@ namespace Acore
     {
         Unit& i_unit;
         bool isCreature;
-        explicit AIRelocationNotifier(Unit& unit) : i_unit(unit), isCreature(unit.IsCreature())  {}
+        bool includePlayers;
+        explicit AIRelocationNotifier(Unit& unit, bool includePlayers = false) : i_unit(unit), isCreature(unit.IsCreature()), includePlayers(includePlayers)  {}
         template<class T> void Visit(GridRefMgr<T>&) {}
         void Visit(CreatureMapType&);
+        void Visit(PlayerMapType&);
     };
 
     enum class TeamFilter