Helin Assistant 0.4.12

Helin Assistant 0.4.12

• 修复重复点击当前聊天标签导致发送或只读切换卡住；旧账号刷新不会覆盖刚确认的模式，新对话迟到回包不会抢走当前选择。
• 与更新后的助手服务配合，长段落可连续追问；DAG 提案会避开完整数学块，并继续要求审阅确认。
• 摘要随阅读区宽度调整；窄模式保留短预览，简繁、布局和内容更新保留展开状态。后台显示进度、错误与重试入口。
• 补齐自动修改历史分页和源笔记筛选；对话可分页查看、归档及恢复，保留阅读位置与展开状态。归档保留全部消息，关闭标签仅隐藏标签。

更新时保留原有本机配置、配对和同步设置，无需先退出或重新配对。部分功能需要配套服务支持。实体 iPad 验收仍待完成。

• Fixed stuck submission and read-only controls after selecting the current tab, stale mode snapshots, and late-created chats taking over the active selection.
• With the updated companion service, follow-up questions retain long passages and DAG insertion proposals stay outside complete math blocks; note writes still require review.
• Summaries adapt to the reading pane, retain concise previews on narrow layouts, and preserve expansion through script, layout and content updates. Background progress, errors and retry actions are visible.
• Added paginated change history with exact source-note filtering, and paginated conversations with reversible archiving. Conversation reading positions and expanded evidence are retained. Archiving preserves messages; closing a tab only hides it.

Keep existing local configuration, pairing and synchronization settings when updating. No sign-out or re-pairing is required. Some features require companion-service support. Physical iPad validation remains pending.