fix: 装备属性面板避让逻辑 + 多项功能更新

- item_tooltip_view.gd: 新增 avoid_rect 属性，tooltip 与装备窗口重叠时自动推到左侧
- inventory_ui.gd: 悬停装备时传入窗口矩形作为避让区域
- 包含其他累积的功能开发和测试文件

project/motion_event_visibility_test.gd

@@ -0,0 +1,38 @@
+# motion_event_visibility_test —— 40250 CHARACTER_SHOW/HIDE local consumer.
+extends SceneTree
+
+const GameScene = preload("res://game_scene.gd")
+
+class Actor extends Node3D:
+	var hidden := false
+	func set_motion_hidden(value: bool) -> void:
+		hidden = value
+	func is_motion_hidden() -> bool:
+		return hidden
+
+var failures := 0
+
+func check(ok: bool, label: String) -> void:
+	if not ok:
+		failures += 1
+		printerr("FAIL: " + label)
+
+func _init() -> void:
+	call_deferred("run")
+
+func run() -> void:
+	var game := GameScene.new()
+	var actor := Actor.new()
+	get_root().add_child(game)
+	get_root().add_child(actor)
+	game.player = actor
+	game._on_local_motion_event_detailed({"type": 8, "sound": "", "pos": Vector3.ZERO})
+	check(actor.hidden, "CHARACTER_HIDE reaches the local actor")
+	game._on_local_motion_event_detailed({"type": 7, "sound": "", "pos": Vector3.ZERO})
+	check(not actor.hidden, "CHARACTER_SHOW restores the local actor")
+	game.free()
+	actor.free()
+	await process_frame
+	if failures == 0:
+		print("PASS: motion_event_visibility_test")
+	quit(1 if failures else 0)