Fix creature chase animation and target-circle tracking

- use movement animation (prefer run, fallback walk) for server-driven creature moves
- synthesize short movement duration for duration-less movement deltas to avoid glide/attack-pose sliding
- return to idle after both walk/run movement states
- drive target circle from entity latest position and always interpolate selected/engaged targets

src/game/game_handler.cpp

@@ -635,6 +635,11 @@ void GameHandler::update(float deltaTime) {
                 entity->updateMovement(deltaTime);
                 continue;
             }
+            // Keep selected/engaged target interpolation exact for UI targeting circle.
+            if (guid == targetGuid || guid == autoAttackTarget) {
+                entity->updateMovement(deltaTime);
+                continue;
+            }
 
             // Distance cull other entities (use latest position to avoid culling by stale origin)
             glm::vec3 entityPos(entity->getLatestX(), entity->getLatestY(), entity->getLatestZ());