- 点5: cancelling 独立状态 UI,用轮询替换 300ms setTimeout,StreamStatusBar 加橙色视觉 - 点6: ThreadSidebar formatTime 支持毫秒时间戳,时间展示改用 lastActive - 点7: MessageBubble 智能摘要(关键词优先/标题次优/跳开场白),折叠阈值提升至25行/800字,展开后可收起 Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>