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/fly_dynamic_collision_test.gd

@@ -0,0 +1,116 @@
+# fly_dynamic_collision_test —— 40250 FlyingInstance 动态 Actor 碰撞回归。
+#
+# 参考 FlyingInstance.cpp::Update：
+#   collision sphere = max(move_distance * 2, configured radius)
+#   hitonanothermonster -> HittedObjectSet 去重 -> OnExplodingAtAnotherTarget
+#   pierce 后继续飞行，耗尽才爆炸。
+extends SceneTree
+
+const FlyObject = preload("res://fly_object.gd")
+
+var _failures := 0
+
+func _ck(condition: bool, message: String) -> void:
+	if condition:
+		return
+	_failures += 1
+	printerr("FAIL: ", message)
+
+func _init() -> void:
+	await _run()
+	quit(1 if _failures else 0)
+
+func _run() -> void:
+	await process_frame
+	_test_two_actors_and_pierce()
+	_test_same_actor_is_deduplicated()
+	if _failures == 0:
+		print("PASS: fly_dynamic_collision_test")
+
+func _new_manager() -> Array:
+	var mount := Node3D.new()
+	get_root().add_child(mount)
+	var manager := FlyObject.new()
+	manager.manual_step = true
+	mount.add_child(manager)
+	manager.setup(mount)
+	return [manager, mount]
+
+func _test_two_actors_and_pierce() -> void:
+	var fixture := _new_manager()
+	var manager: FlyObject = fixture[0]
+	var mount: Node3D = fixture[1]
+	var first := Node3D.new()
+	first.position = Vector3(0.0, 1.0, 5.0)
+	get_root().add_child(first)
+	var second := Node3D.new()
+	second.position = Vector3(0.0, 1.0, 10.0)
+	get_root().add_child(second)
+	manager.set_actor_provider(func() -> Array:
+		return [
+			{"vid": 200, "node": first, "center": first.position, "radius": 0.35},
+			{"vid": 300, "node": second, "center": second.position, "radius": 0.35},
+		]
+	)
+
+	var events: Array[int] = []
+	var data := FlyObject.FlyData.new()
+	data.init_vel = 10.0
+	data.flat_range = 30.0
+	data.bomb_range = 0.05
+	data.collision_sphere_radius = 0.05
+	data.hit_on_another_monster = true
+	data.pierce_count = 1
+	var inst = manager.spawn(Vector3(0.0, 1.0, 0.0), Vector3(0.0, 1.0, 30.0), false, data)
+	inst.handler = func(event: String, _pos: Vector3, vid: int) -> void:
+		if event == "at_another":
+			events.append(vid)
+
+	for _i in 100:
+		if manager.active_count() == 0:
+			break
+		manager.step(0.1)
+	_ck(events == [200, 300], "pierce projectile hits first and second Actor exactly once")
+	_ck(manager.active_count() == 0, "non-piercing second Actor hit removes projectile")
+
+	manager.clear_for_map_change()
+	first.free()
+	second.free()
+	manager.free()
+	mount.free()
+
+func _test_same_actor_is_deduplicated() -> void:
+	var fixture := _new_manager()
+	var manager: FlyObject = fixture[0]
+	var mount: Node3D = fixture[1]
+	var target := Node3D.new()
+	target.position = Vector3(0.0, 1.0, 5.0)
+	get_root().add_child(target)
+	manager.set_actor_provider(func() -> Array:
+		return [{"vid": 400, "node": target, "center": target.position, "radius": 0.35}]
+	)
+
+	var events: Array[int] = []
+	var data := FlyObject.FlyData.new()
+	data.init_vel = 10.0
+	data.flat_range = 12.0
+	data.bomb_range = 0.05
+	data.collision_sphere_radius = 0.05
+	data.hit_on_another_monster = true
+	data.pierce_count = 2
+	var inst = manager.spawn(Vector3(0.0, 1.0, 0.0), Vector3(0.0, 1.0, 30.0), false, data)
+	inst.handler = func(event: String, _pos: Vector3, vid: int) -> void:
+		if event == "at_another":
+			events.append(vid)
+
+	for _i in 100:
+		if manager.active_count() == 0:
+			break
+		manager.step(0.1)
+	_ck(events == [400], "same dynamic Actor is blocked by HittedObjectSet")
+	_ck(manager.active_count() == 0, "deduplicated projectile eventually expires")
+
+	manager.clear_for_map_change()
+	target.free()
+	manager.free()
+	mount.free()