refactor: unify interactable components

_Core/utils/InteractionAnchor.gd

@@ -1,14 +0,0 @@
-class_name InteractionAnchor
-extends RefCounted
-
-# 所有交互距离与地图标记共用的世界锚点。
-# Area2D 优先使用实际 CollisionShape2D 的中心，避免脚本节点原点与碰撞区域有偏移时
-# 出现“能交互的位置”和白圈不一致的问题。
-static func get_position(node: Node2D) -> Vector2:
-	var area: Area2D = node as Area2D
-	if area != null:
-		for child: Node in area.get_children():
-			var collision_shape: CollisionShape2D = child as CollisionShape2D
-			if collision_shape != null and not collision_shape.disabled and collision_shape.shape != null:
-				return collision_shape.global_position
-	return node.global_position

_Core/utils/InteractionAnchor.gd.uid

@@ -1 +0,0 @@
-uid://dogltsticcpy2