User-facing
- Skill auto-update — New Settings → Skill Auto-Update section. Pick a background check frequency (hourly / every 6 hours / daily) so the "update available" badge stays current while the app is open, and optionally enable Apply updates automatically to pull and apply detected upstream updates without a manual click — off by default; when off, updates are only flagged in the Library. The redundant in-Settings "Check Now" button was removed, since the Library toolbar already has "Check All".
- Lobster Agents now form their own group in the sidebar, separate from coding agents.
- Applying a preset from the tray menu is no longer blocked while a skill update check is running.
- Presets are curation labels — Adding or removing a skill from a preset no longer immediately changes what is deployed to your agents; deployment happens only when you explicitly apply a preset.
Developer & governance
- Reworked the preset model around curation-label semantics: membership edits are decoupled from disk sync, with explicit batch apply modes and a workspace-scoped tray apply path.
- The background auto-update scheduler polls every 15 minutes to honor the shortest (hourly) interval and to pick up settings changes promptly.
- Tray preset-apply and update-check use independent locks so the two operations no longer block each other.
中文更新日志
用户可见更新
- Skill 自动更新 —— 新增 设置 → Skill 自动更新 面板。可设置后台检查频率（每小时 / 每 6 小时 / 每天），让应用长时间开启时「可更新」徽标保持最新；并可开启 自动应用更新，检测到上游更新后自动拉取并更新，无需手动点击 —— 默认关闭，关闭时仅在技能库标记可更新。同时移除了设置页中冗余的「立即检查」按钮（技能库工具栏已有「检查全部」）。
- 龙虾 Agent 在侧边栏中独立成组，与编程类 Agent 分开显示。
- 更新检查进行时，从托盘菜单应用 Preset 不再被阻塞。
- Preset 作为策展标签 —— 在 Preset 中添加或移除 Skill，不再立即改变实际部署到各 Agent 的内容；部署只在你显式「应用 Preset」时发生。
开发者与治理更新
- 重构 Preset 模型为「策展标签」语义：成员编辑与磁盘同步解耦，新增批量应用模式与工作区范围的托盘应用路径。
- 后台自动更新调度器改为每 15 分钟轮询，以便及时触发最短的「每小时」检查并快速响应设置变更。
- 托盘的 Preset 应用与更新检查改用各自独立的锁，两个操作不再互相阻塞。