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/player_move_test.gd

@@ -182,5 +182,14 @@ func _run() -> void:
 		var moved := Vector3(pc.player.position.x, 0, pc.player.position.z)
 		_ck(moved.length() > 0.05 and moved.normalized().dot(c[2]) > 0.95,
 				"key %s moves camera-relative (want %s, moved %s)" % [c[1], c[2], moved])
+
+	# 9) __OnClickSmart fallback：点击到既不是实体、掉落物也不是地面的空白处
+	#    必须 NEW_Stop，不能让上一次点地目标继续驱动角色。
+	pc._goto(Vector3(8, 0, 0))
+	_ck(pc.is_going(), "click-move is active before empty-space click")
+	pc.world = null # no ground hit -> __OnClickSmart's NEW_Stop branch
+	pc._on_click(Vector2.ZERO)
+	_ck(not pc.is_going(), "empty-space click stops the previous click-move")
+
 	pc.camera = null
 	cam.free()