feat: add nearby social interactions

_Core/managers/SceneManager.gd

@@ -38,6 +38,7 @@ var current_scene_name: String = ""                 # 当前场景名称
 var is_changing_scene: bool = false                 # 是否正在切换场景
 var _next_scene_position: Variant = null            # 下一个场景的初始位置 (Vector2 or null)
 var _next_spawn_name: String = ""                   # 下一个场景的出生点名称 (String)
+var _next_destination_id: String = ""               # 快速传送目标，用于发现登记
 
 # 场景路径映射表
 # 将场景名称映射到实际的文件路径
@@ -194,6 +195,14 @@ func get_next_spawn_name() -> String:
 	_next_spawn_name = ""
 	return spawn_name
 
+func set_next_destination_id(destination_id: String) -> void:
+	_next_destination_id = destination_id.strip_edges()
+
+func get_next_destination_id() -> String:
+	var destination_id := _next_destination_id
+	_next_destination_id = ""
+	return destination_id
+
 # ============ 场景注册方法 ============
 
 # 注册新场景