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为画布历史记录补充操作类型和内容消失保护 增加撤销成功、恢复成功及阻止提示并在三秒后隐藏 补充拖动、上传、生成和替换等操作的历史语义 保留恢复按钮、Ctrl+Shift+Z 快捷键和双向历史栈 补充撤销与恢复规则的定向测试和说明文档 --------- Co-authored-by: 段舒康 <kdletters@qq.com> Co-authored-by: kdletters <kdletters@qq.com> Reviewed-on: https://git.genarrative.world/git/GenarrativeAI/Genarrative/pulls/89 Co-authored-by: oj-afraid-student <1373241747@qq.com> Co-committed-by: oj-afraid-student <1373241747@qq.com>