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- ProcessManager 新增 has_instance_process(备份启动守卫依赖) - 删除/启动/编辑/迁移目录时接入备份维护钩子(lock_instance_maintenance + begin_instance_deletion + delete_instance_backups),remove_instance 拆出 remove_instance_files_and_state - run 启动前检查活跃备份操作并加维护锁 - 目录迁移时搬移默认备份仓库并入队清理 - 更新 settings SELECT 的 SQLX 离线缓存(补 ui_font/backup_repository_path/mono_font) - create_recorded_symlink 非 Windows 未用参数加 cfg_attr 豁免