【已审核】feat(tabs): Tab 预览展示完整迷你会话流 - #1428
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August 4, 2026 19:17
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While a session is streaming, hovering its Tab shows a full live mini session flow: thinking, tool calls and text output rendered in time order with auto-scroll, plus a run indicator (elapsed time + model). The preview collapses to a single stream section while running and falls back to the message minimap when idle. - chat-atoms: conversationStreamingStateAtomFamily (sliced subscription) - agent-atoms: agentSessionLiveMessagesAtomFamily + cleanup on delete - tab-atoms: TabStreamRunData / TabStreamActivity types - TabBar/TabBarItem: pass sessionId, subscribe to streaming states and assemble streamRun data - TabPreviewPanel: StreamRunSection + mini session flow renderer (buildAgentFlowEntries / buildChatFlowEntries), tool done/error backfill, fixed-id live text tail, bottom-aware auto-scroll - LeftSidebar: clear streaming/liveMessages family caches on delete
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概述
Tab hover 预览面板新增会话流实时运行展示：当会话正在流式运行时，悬停 Tab 弹出的小窗展示完整迷你会话流——thinking、工具调用、文本输出按时间顺序滚动，顶部带运行指示条（耗时 + 模型名），并自动滚动贴底（用户上滚时暂停跟随）。运行中预览窗只保留流式区域一段（不再同时显示历史消息摘要），会话结束后恢复原有消息摘要预览，行为与改动前一致。
改动
apps/electron/src/renderer/atoms/agent-atoms.ts：新增agentSessionLiveMessagesAtomFamily（按 sessionId 切片订阅实时 SDK 消息，避免整树重渲染）apps/electron/src/renderer/atoms/chat-atoms.ts：新增conversationStreamingStateAtomFamily（Chat 流式状态切片订阅）apps/electron/src/renderer/atoms/tab-atoms.ts：新增TabStreamRunData/TabStreamActivity类型（含 liveMessages / reasoning 字段）apps/electron/src/renderer/components/tabs/TabBar.tsx：向TabBarItem传入sessionIdapps/electron/src/renderer/components/tabs/TabBarItem.tsx：订阅 agent/chat 流式状态，组装streamRun数据（Chat 工具事件 start/result 合并）apps/electron/src/renderer/components/tabs/TabPreviewPanel.tsx：新增StreamRunSection+ 迷你会话流渲染器（buildAgentFlowEntries/buildChatFlowEntries/FlowEntry）；工具完成/出错态由 streamState 回填；实时文本用固定 id 追加不覆盖已完成块；Preview memo 化、计时器 250ms 节流apps/electron/src/renderer/components/app-shell/LeftSidebar.tsx：删除会话/对话时清理 streaming / liveMessages atomFamily 缓存测试
bun run typecheck通过。已通过 BDD 自审查（独立子会话审查两轮，修复工具完成态回填、实时文本合并误判、自动滚动劫持等 4 个问题）。dev 模式实测：Agent 会话运行时 hover Tab，可看到 thinking / 工具活动（进行中旋转 → 完成绿勾 → 出错红叉）/ 文本输出按序实时滚动，仅显示单段；会话结束后恢复原消息摘要预览。紧急度
常规
备注
无关联 upstream issue。