feat(地图系统): 实现角色移动约束和地图切换功能

添加地图移动区域检测和角色移动约束逻辑
引入地图切换请求队列机制，支持延迟处理角色传送
在CharacterObject中实现地图边界检测和位置约束应用

Game/src/world/GameWorld.cpp

@@ -20,6 +20,11 @@ void GameWorld::onExit() {
   Scene::onExit();
 }
 
+void GameWorld::Update(float deltaTime) {
+  Scene::Update(deltaTime);
+  ProcessPendingCharacterMove();
+}
+
 bool GameWorld::InitWorld() {
   townPathMap_ = game::loadTownList();
   if (townPathMap_.empty()) {
@@ -77,6 +82,26 @@ void GameWorld::MoveCharacter(RefPtr<Actor> actor, int townId, int area) {
   AddChild(townIt->second);
 }
 
+void GameWorld::RequestMoveCharacter(RefPtr<Actor> actor, int townId, int area) {
+  if (!actor) {
+    SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
+                "GameWorld: ignore move request without actor");
+    return;
+  }
+
+  pendingCharacterMove_ = PendingCharacterMove{actor, townId, area};
+}
+
+void GameWorld::ProcessPendingCharacterMove() {
+  if (!pendingCharacterMove_) {
+    return;
+  }
+
+  PendingCharacterMove move = *pendingCharacterMove_;
+  pendingCharacterMove_.reset();
+  MoveCharacter(move.actor, move.townId, move.area);
+}
+
 GameWorld* GameWorld::GetWorld() {
   return dynamic_cast<GameWorld*>(SceneManager::get().GetCurrentScene());
 }