sync: complete remaining files (source dhk-1)

CLAUDE.md

@@ -81,8 +81,11 @@ The frontend (`frontend-web/`) is a React 19 + Vite SPA:
 
 - **Routing**: React Router v7; top-level routes in `src/pages/PageRoutes.tsx`, workspace sub-routes in `src/pages/WorkspaceRoutes.tsx`
 - **Pages**: `ChatPage` (thread chat), `AgentChatPage` (custom agent chat), `AgentsPage`/`NewAgentPage` (agent management), `ScheduledTasksPage`/`ScheduledTaskRunDetailPage` (scheduled tasks), `LightAppManagementPage`/`LightAppListPage`/`LightAppIframeView` (轻应用中心 — register/list/embed mini-apps)
+- **普通问答地图可视化**: shared `MarkdownContent` recognizes only dedicated `map-json` fences and otherwise preserves the legacy Markdown/Streamdown path byte-for-byte. `components/workspace/visualizations/` validates the bounded map contract with Zod, lazy-loads MapLibre, and provides loading/error/text fallbacks so malformed or unreachable maps never blank the message. The lead-agent prompt emits `map-json` only when the user explicitly asks for a map; flowcharts and other graphics continue through the existing Markdown/Mermaid path. The raster tile template comes from the single post-build setting `runtime-config.js` → `VITE_MAP_TILE_URL` (Google by default); replace it with the intranet `{z}/{x}/{y}` endpoint for disconnected deployments.
+- **HTML 成品离线绘图运行时**: 新生成的 `.html` 源码直接引用 Gateway `/api/public/html-runtime/` 下的浏览器版 `g6.min.js`、`echarts.min.js`、`leaflet.js/css` 和 `deerflow-runtime.js`；文件随后台源码存放于 `vendor/html-runtime/`，不再依赖前端 Vite/node_modules 产物或公网 CDN。`config.yaml -> html_runtime.base_url` 是写入新 HTML 的浏览器可访问绝对地址，`html_runtime.map_tile_url` 是初始化脚本读取的瓦片模板。用户上传的栅格图若要作为页面背景，使用同一 Gateway 源下的签名地址 `/api/public/html-images/{token}` 写入 `background-image`。流程图使用 `data-df-flow` + G6（不用 Mermaid），图表使用 `data-df-chart`，地图使用 Leaflet `data-df-map`。普通问答保持独立：消息列表 `map-json` 继续由前端原逻辑渲染，普通流程图/图表仍走 Markdown/Mermaid。
 - **定时任务「JSON → HTML 模板填充」(模板数据转换器)**: a third scheduled-task execution mode. In the create/edit dialog (`ScheduledTasksPage.tsx`), selecting the built-in agent **「模板数据转换器」** (`execution_agent_name === "template-json-builder"`, `TEMPLATE_BUILDER_AGENT_ID`) reveals a 「HTML模板」 select (`useHtmlTemplates` → `GET /api/scheduled-tasks/html-templates`) + a **.json 上传** button (reads the file's text into the prompt box) and **hides** the 必须生成 HTML/Markdown switches (this mode always outputs HTML). The chosen template persists as `execution_context.template_config.template_id` (`TemplateFillConfig` in `core/scheduled-tasks/types.ts`). At run time the backend converts the source JSON (the task prompt) into that template's `DATA` structure, validates (retry-on-fail), fills the template, and stores an HTML page previewable via the existing run-detail HTML preview. The source can be **pure JSON, plain text, or text-with-embedded-JSON** — the backend pre-extracts any embedded JSON and the agent's `SOUL.md` maps it (or the plain text's semantics) to the template's schema skeleton. **Chat-page debug entry (only this agent's `AgentChatPage`)**: when `agent_id === "template-json-builder"`, the chat header shows a 「页面模板」 select + a 「渲染预览」 button — after a normal Q&A run, the button takes the **latest AI reply**, POSTs it to `POST /api/scheduled-tasks/template-fill/render` (`renderTemplateFill`), and pops a dialog rendering the filled HTML in a `sandbox="allow-scripts"` iframe plus the structure-validation status/errors/gaps — for debugging the agent's conversion effect without creating a scheduled task. Gated strictly on the agent id, so other agents' chat pages are untouched. See the backend CLAUDE.md「Template-fill mode」for the engine (`deerflow/runtime/scheduler/template_fill.py`), agent seed, dispatch, and the render API.
 - **AI 写作·对话版（对话驱动写作台）**: a **parallel new entry** beside the classic AI-writing page (classic page/routes untouched) — route `/page/canvas/ai-writing-chat` (`OpenCanvasRoutes.tsx`), sidebar 「问答管理 → 课题研究(对话版)」. Page `open-canvas/pages/AIWritingChatPage.tsx` fully **reuses the engine** (`AIWritingContext` state machine + LangGraph `useStream`, `AIWritingHistoryProvider`, right-side `AIWritingDraftPanel`) but replaces the presentation: left = `components/ai-writing-chat/WritingChatPanel.tsx` (timeline + **button-only intervention cards** `ChatInterventionCards.tsx` — the five pause cards copied from `InterventionCard.tsx` with all inline textareas removed, confirm/action buttons kept — plus a bottom **unified smart composer**). Free text goes through two-level intent resolution (`open-canvas/api/ai-writing-intent.ts`): deterministic short-phrase fast path (确认/继续/重新搜索/重写大纲…; high-cost actions never fast-pathed) then `POST /api/ai-writing/sessions/{id}/intent` — the backend reads the graph checkpoint (authoritative pause point from the pending interrupt) and routes via `deerflow/agents/ai_writing/intent_router.py` (LLM + strict per-pause action whitelist aligned to the graph's real resume actions, confidence gates: finalize/force_finalize/覆盖式 re_search need ≥0.85 else clarify, payload key-whitelist cleaning). Results map to `submitIntervention`/control (暂停/继续/后台挂起)/QA bypass (`answer` rendered as a chat bubble, never touches graph state)/clarify (amber follow-up bubble with multi-turn context). **Two-state layout**: idle (未开始写作) renders the **classic setup experience unchanged** — `WritingSetupChat` + collapsible `AIWritingPanel` form under `WritingFormProvider` (same as `AIWritingPage`'s idle branch); once writing starts (or history view opens) it switches to the chat workbench. **Unified chronological feed** (`ChatFlowTimeline.tsx`): intent-layer chat bubbles are interleaved INTO the progress-event timeline by anchor (= `progressEvents.length` at message creation), so events triggered by a user message render **below** it (Google-AI-Studio-style single stream, not timeline-above/chat-below); composer-driven interventions suppress the duplicate 「我的要求」card (`suppressedRequirementIndices`). **素材不足自动续跑** only at `material_confirm` (the only pause the graph supports re-search from): needResearch caches the payload as a pending intent, submits `re_search + userQuery`, and auto-submits the pending intent when the new material-confirm pause arrives (cancellable pill). Stage chips + per-stage placeholder + 「当前交互对象」status badge. Backend tests `tests/test_ai_writing_intent.py`. Plan doc: `frontend-web/docs/ai-writing-对话驱动写作台-实现方案.md`.
+- **策略优选**: route `/page/strategy/qa/strategy-selection`, sidebar 「问答管理 → 策略优选」. The standalone `src/strategy-selection/` workbench has two horizontal split stages: Step 1 keeps intent-understanding conversation cards on the left and an editable task draft plus angle selection on the right; Step 2 keeps multiplexed parallel strategy cards and automatic judging on the left while the right stays dedicated to the selected-strategy basket and final Markdown synthesis. It consumes the existing `POST /api/parallel-agents/run/stream` protocol, isolates output by stable agent id, supports expanded per-agent dialogs, user selection, Markdown editing/copy/download, and shared server-side DOCX export. A clearly marked neutral Taiwan-Strait risk-management demo is loaded by default for offline UI acceptance. Administrators can edit the SOUL and skills of the nine built-in functional agents through the page dialog; the backend seeds `strategy-selection-{intent,angle-*,judge,solution}` only when their directories are missing, preserving later admin changes. Pure parsing/SSE tests live in `src/strategy-selection/lib.test.ts`; backend seed tests live in `tests/test_strategy_selection_seed.py`.
 - **轻应用中心 (Light App Center)**: a sibling of 任务管理 in the sidebar with two pages — 应用管理 (admin registers `window_open` or `iframe` mini-apps with a route-param builder: login params resolved from `localStorage.userInfo`, theme params literal) and 应用列表 (card grid of `window_open` apps, `window.open` launch). `iframe` apps are mounted under a chosen parent menu (XK/PG/TY/综合管理) and **dynamically injected into the sidebar** by `core/page-layout/use-sidebar-menu.ts` (`useSidebarMenuItems`), opening in the `LightAppIframeView` host. Client + React Query hooks in `strategy-components/api/light-apps.ts`; URL builder/constants in `strategy-components/lib/light-app.ts`. Backend: `/api/light-apps` (global/shared, admin-gated writes).
 - **菜单管理 (Menu Management, admin-only)**: an **overlay** over the static sidebar menu — `MenuManagementPage` (`pages/MenuManagementPage.tsx`, route `/page/strategy/admin/menu-management`, opened from the admin-only 「菜单管理」 item in the **bottom-left settings dropdown** of `components/page-sidebar.tsx`). Admins rename / 停用·启用 / reorder (↑↓ or @dnd-kit drag) / re-parent (horizontal drag **or** the edit dialog's 「移动到」parent selector) any node across 一级/二级/三级, **including injected iframe light-app nodes** (`light-app-<appId>`). The static tree (`core/page-layout/sidebar-menu.ts`) stays the source of icons/routes; only per-node deltas (`label`/`disabled`/`parentId`/`sortOrder`) persist to the backend. Merge logic in `core/page-layout/menu-overrides.ts` (`applyMenuOverrides`, applied in `use-sidebar-menu.ts` after light-app injection, before role filter; disabling a node hides its whole subtree) — strict **3-level cap** (`wouldExceedDepth`). Client `strategy-components/api/menu-overrides.ts`. Backend: `/api/menu-overrides` (global/shared; open read, admin atomic replace-all). **简介模式** left-nav is a separate overlay: `/api/compact-menu-overrides` stores two independent sets (type `A` / `B`); each website picks one via `runtime-config.js` `VITE_COMPACT_MENU_TYPE`.
 - **白名单管理 (Login Whitelist, admin-only)**: gates **who may log in**, run as a **blocklist (黑名单模式)**. Two pieces: a global master switch (`system_settings.json → login_whitelist.enabled`, surfaced by **admin-only** `GET|PUT /api/system-settings/login-whitelist`) + a per-user **放行** flag (`users.approved` column, migration `20260625_02`). Users **self-register** as usual and **every new account defaults to `approved=True`** — so a user who has never logged into this system before is allowed straight through; the switch only blocks users an admin has explicitly **取消放行** (`approved=False`). (`create_user`/`User`/`UserRow` all default `approved=True`; admins are always approved; existing rows are backfilled `True`.) Login interception is the single helper `enforce_user_approved(user)` in `app/gateway/routers/auth.py`, called in all three login endpoints (`/login/{local,username,token}`) **after** the account is resolved/created and **before** the JWT is issued: switch off → everyone passes; `system_role=="admin"` → always passes (anti-lockout); else `approved=False` (admin-revoked) → 403 `{code:"PENDING_APPROVAL"}` (the frontend's `extractErrorMessage` surfaces the message and login throws before writing any auth state, so no half-login). Admin approves on `pages/LoginWhitelistPage.tsx` (route `/page/strategy/admin/login-whitelist`, entry「白名单管理」in the bottom-left settings dropdown of `components/page-sidebar.tsx`, both sidebar modes): a top master-switch + a list of all registered users (`GET /api/v1/auth/users`, now carrying `approved`) with a per-row 放行 Switch (`PUT /api/v1/auth/users/{id}/approval`, admin-only; revoking only blocks the **next** login — `token_version` is left untouched, existing sessions are not force-killed). Client/hooks: switch in `strategy-components/api/login-whitelist.ts`, user list + approval in `core/auth/{api,hooks}.ts` (`useSetUserApproval`). Backend tests: `tests/test_login_approval.py`. **账号级「登录口令」(per-account password — 临时开通)**: the same page also lets an admin assign one specific account an individual **plaintext** password (`users.login_password` column, migration `20260625_04`, nullable; auto-added on startup by `_ensure_orm_columns_sync`). Once set, **that account's** username login (`POST /api/v1/auth/login/username`) **requires** `?password=` to exactly match it and that personal password **takes precedence over** the global shared-password gate (`username_login.require_password`); accounts without one keep today's shared-gate / passwordless behavior. The user then logs in via the **existing** frontend URL `#/login/<用户名>?password=xxxx` (LoginPage already forwards `?password=`; `<用户名>` = the account's email `@`-prefix). **Plaintext is intentional** — the password rides in the URL query anyway, so storing it readably lets the admin re-copy the full login link from the page; it is exposed only on the **admin-only** `GET /api/v1/auth/users` (`UserListItem.login_password`) and the new admin-only `PUT /api/v1/auth/users/{id}/login-password` (set non-empty / clear with null·empty; doesn't touch `token_version`). The whitelist page renders a per-user 「登录口令」 column with a set/修改 editor + a live 「复制登录链接」 button (`useSetUserLoginPassword` in `core/auth/hooks.ts`, `setUserLoginPassword` in `core/auth/api.ts`). Backend gate helper `_lookup_user_by_username` (lookup-only, no auto-register) in `routers/auth.py`; tests `tests/test_login_personal_password.py`.
@@ -90,7 +93,10 @@ The frontend (`frontend-web/`) is a React 19 + Vite SPA:
 - **技能地址管理 (Skill Address Management, admin-only)**: 扫描运行中的技能（`skills/{public,custom}` 下所有 `.md`/`.py`）里的 **http(s) URL 与 IP/IP:端口**，按唯一地址聚合全部出现位置（跨 .md/.py），支持**批量替换**（如把 UAT 地址一次性改成生产）。主体抽成可复用组件 `SkillAddressesPanel`（`pages/SkillAddressesPage.tsx` 导出，默认导出 `SkillAddressesPage` 仍保留旧路由 `/page/strategy/admin/skill-addresses` 作直链回退），**作为「技能地址管理」标签页嵌入管理员「技能管理」页 `pages/AdminSkillsPage.tsx`**（该页加 Tabs：「技能列表」+「技能地址管理」；入口在「设置和更多」下拉的「技能管理」`workspace-nav-menu.tsx` → `/page/workspace/admin/skills`，不再单列于 `components/page-sidebar.tsx` 左下角设置下拉）：打开自动扫描并带**进度条**（扫描逐技能 / 应用逐文件 X/N，应对 150+ 技能），URL/IP 类型过滤 + 搜索 + 「片段批量套用」（如所有 `uat.4.cn` → `prod.4.cn`）、每地址「替换为」输入框（可展开看 `file:line` 片段）、内联**预览**、**应用**、**多关键词检索**（空格分隔全部命中），以及**修改记录**面板——每次应用生成一条记录（显示时间/改了哪些地址 from→to/文件数/处数），可**针对单次记录回退**（二次确认）。client + NDJSON 流式解析在 `strategy-components/api/skill-addresses.ts`。后端 `/api/skill-addresses`（**仅管理员**）：所有文件 IO 走 `asyncio.to_thread` 不阻塞事件循环；`GET /scan`(+`/scan/stream`)、`POST /preview`、`POST /apply`(+`/apply/stream`)、`GET /backups`、`POST /rollback/{id}`；**子串安全替换**（基于 token span，不会误伤子串）、`expected_total` 乐观锁（409）、写前自动磁盘备份到 `{skills_root}/.address-edits/`（同时写一份 `{id}.manifest.json` 记录本次替换明细，供修改记录展示）、应用后刷新技能系统提示缓存。纯引擎 `deerflow/skills/address_scan.py`，router `app/gateway/routers/skill_addresses.py`，tests `tests/test_skill_addresses.py`。范围仅运行中技能，不动 `deploy/minimal/skills/`。
 - **按钮管理 (Task Button Management, admin-only)**: configures the **可配置跳转按钮** rendered in the left task panel of the task deep-link workspaces (rwfx / 3qfx / xdfx, see `TaskFxWorkspace`). Each button = `{business, label, linkType, target, appendTaskId, idParam, idKind, openMode, loginParams, appendAuth, authTokenParam, authNameParam, enabled, sortOrder}`; `linkType` is `url` (外链 `window.open`, optional append of `?{idParam}={id}` — **`idParam` is the editable query-param name**, e.g. `id`/`task_id`), `business` (内部切换到另一业务, reuses `resolveTaskDeeplinkTarget`, always task id), or `purpose` (弹出当前任务的「任务目的」表格 via the shared `TaskPurposeDialog`, no target — configurable for any page incl. xdfx). **`host`（宿主路由）** asks the embedding parent to navigate: `runTaskButton` sends `window.parent.postMessage({ type:'HOST_NAVIGATE', path, queryParams:{ [idParam]: Number(taskId) } }, hostOrigin)` — `target` is the host route (e.g. `/task/item-aiceh/step-analysis-audience`), `appendTaskId`/`idParam` become numeric `queryParams` (task id only), origin from `runtime-config.js` `VITE_HOST_NAVIGATE_ORIGIN` (else ancestorOrigins/referrer; never `*`). Independent-tab clicks toast and do nothing. **`url` buttons support two independent, coexisting login-append mechanisms**: (1) **`loginParams` (追加登录参数, like 应用管理/Light App Center)** — a list of `{key, source, customValue}` resolved at click time: `runTaskButton` reads `userInfo` (via `readUserInfo` from `strategy-components/lib/light-app`, embed-isolated through `authStorage`) and appends `?{key}={value}` for each (`source` = a userInfo field such as `accessToken`/`yUserId`, or `other` → literal `customValue`); empty list = nothing appended. Reuses `LOGIN_SOURCE_OPTIONS` from light-app; stored as JSON column `task_buttons.login_params_json` (`PortableJSON`, migration `20260625_01`). (2) **`appendAuth` (追加登录态)** — appends `?{authTokenParam}={token1}&{authNameParam}={username}` (default param names `token`/`username`) so the跳转目标外部系统 can identify the current user — e.g. `…/action/sentiment?token=<JWT>&username=lizhaoxing`. **Gated on token login**: `token1` = the `?authToken=` used by token-exchange login; `username` = the raw login name the backend resolved from `getTokenInfo`. Both are stashed at login by `persistLoginCredentials` into `login.token1`/`login.username` (`core/auth/login-credentials.ts`, scoped via [[scoped-storage]] so嵌入/独立会话隔离 + 随独立会话迁移). Only token login writes them → a non-token-login session has no `token1`, so `runTaskButton` silently skips the auth append (the jump still works, just without those two params). The frontend reads `username` straight from the new `UsernameLoginResponse.username` field (the stored email local-part is lossy — lowercased/normalized — so not used), **not** by decoding the JWT. Stored as columns `task_buttons.{append_auth, auth_token_param, auth_name_param}` (migration `20260625_02`). The admin page renders both editors for `url` buttons (loginParams 虚线框 + 追加登录态 switch). **`idKind` (`task`/`action`) only matters for xdfx**: its deep-link `?taskId=` is an 行动id and the 任务id is resolved at login (`fetchTaskIdFromAction`) — `TaskContext` now also stashes the raw `actionId`, so a url button can append either (default `task`). Page `TaskButtonsPage.tsx` (route `/page/strategy/admin/task-buttons`, **admin-gated**, entry「按钮管理」in the bottom-left settings dropdown of `components/page-sidebar.tsx`, both full + collapsed modes) has per-business tabs, edits name/type/target/启停/排序/增删, saves the **whole set atomically** (replace-all), plus 「导入默认」 to merge code-seed defaults. **Seed/fallback** (like 敏感词管理): only when the whole table is empty (fresh deploy, never saved) do the workspace + page fall back to `defaultTaskButtons(cfg)` — rwfx's url buttons (编辑/上一步/下一步/3q详情) built from the **live** `/api/public/config/task-deeplink` plus cross-business switch buttons for **all three** businesses (each switches to the other two — rwfx→三情/行动, 3qfx→任务/行动, xdfx→任务/三情). Once saved, the store is the sole source of truth. **Bottom 快捷跳转 bar groups by prev/next**: `TaskJumpBar` renders only「上一步/下一步」-type buttons in the bottom bar — a `prev` group (id 含 `prev` 或文案「上一步」, 描边次要样式 + ←图标) rendered **左侧**, then a `next` group (id 含 `next` 或文案「下一步」, 实心主色) on the **右侧** (container `justify-end`); everything else goes to the right-edge floating menu. The default 上一步 button (`rwfx-prev`, `url`, target = `DASHBOARD_AGENT_ROUTE` `/page/strategy/dashboard-agent`, `appendTaskId` + `idParam=taskId` → `?taskId=任务id`, `openMode=self`) 默认指向**应用内**「大屏绘制」Line truncated
 - **实时并发监控 (Concurrency / System-Pressure Monitor, admin-only)**: a live panel mounted at the **top of the admin 排行榜 page** (`components/workspace/admin/concurrency-monitor.tsx` `ConcurrencyMonitorPanel`, rendered in `pages/AdminUserLeaderboardPage.tsx`) showing **当前并发的大模型调用数 + 列表（用户/智能体/类型/已运行时长）**, each row with a 「停止」button (and a 「全部停止」) that **truly aborts** that run's in-flight model stream via `RunManager.cancel` (`POST /api/admin/active-runs/{run_id}/cancel`) — to relieve pressure when 使用人数过多. Two line charts (minute/hour toggle): **并发量折线图** (peak/avg, `GET /api/admin/active-runs/concurrency`, fed by a lightweight background sampler into `concurrency_samples`) and **大模型出字速度折线图** (tokens/sec, `GET /api/admin/active-runs/token-speed`, aggregated from `llm_call_metrics`) so a dip pinpoints where the bottleneck is. A **「后台采样」Switch** (`system_settings.json → concurrency_monitor.enabled`, **default off / opt-in**, `GET|PUT /api/admin/active-runs/settings`) turns the background sampling on/off **at runtime, no restart** (the live concurrency count + 「停止」 work even while sampling is off — only the 并发量 history chart needs it on); everything is designed to **never impact production** (one tiny INSERT/15s, retention-purged, best-effort). Client/hooks: `core/admin/active-runs.ts` + `core/admin/hooks.ts` (`useActiveRuns`/`useConcurrencySeries`/`useTokenSpeedSeries`/`useCancel*`/`useMonitorSettings`). See the backend CLAUDE.md「Admin Concurrency Monitor」.
-- **会话冲突 409 中文化**: when a user submits a new question while the previous turn is still streaming, the backend's `RunManager.create_or_reject` rejects with HTTP 409 (`services.py` now returns a **Chinese** detail「当前对话还在生成回答…」). `core/threads/hooks.ts` `onError` detects the conflict (`isActiveRunConflictError`: 409 / "already has an active run" / the Chinese text). A premature SSE close (SDK treats it as success and restores the send button while the backend run is still occupying the thread) is recovered by `confirmOrRejoin`: hold the stop button, `joinStream` the live run, and on 409 auto-reconnect instead of a fake AI bubble. `sse_consumer` no longer ends a resumable (`on_disconnect=continue`) stream on a false-positive `is_disconnected()`.
+- **会话冲突与模型工具流恢复**: when a user submits a new question while the previous turn is still streaming, the backend's `RunManager.create_or_reject` rejects with HTTP 409 (`services.py` returns the Chinese detail「当前对话还在生成回答…」). `core/threads/hooks.ts` detects the conflict and routes it through `confirmOrRejoin`. Run-creation SSE responses expose `Content-Location` plus the SDK `Location` reconnect endpoint; `core/api/api-client.ts` records the last consumed event id, so an in-page rejoin resumes after that cursor instead of replaying tool arguments from `-1`. `write_file` argument updates carried by `messages-tuple` count as business activity. A known active run is probed only after 90 seconds without a business frame; the watchdog hides `lg:stream`, stops only the old browser reader, and rejoins without cancelling the backend run. Clean EOF, transport errors, 409 and watchdog recovery share one single-flight Promise to prevent duplicate joins/finalization. The backend `PatchedChatOpenAI` separately normalizes confirmed cumulative argument snapshots and bounded compatible response shapes while preserving standard deltas; its content-free diagnostics never log prompts, arguments or file bodies.
+- **React #185 与流式刷新保护**: every direct LangGraph `useStream` surface (main/agent chat, AI writing, Canvas and Studio notebook) uses shared `STREAM_RENDER_BATCHING = true`. The installed SDK implements numeric `throttle: 16` as a trailing debounce, which can indefinitely postpone UI updates during a continuous fast stream; `true` retains asynchronous next-task batching without requiring 16ms silence. `stream-error-classification.ts` detects `Maximum update depth exceeded` / production `#185` through bounded, cycle-safe wrappers. Main chat filters the SDK's stored error and duplicate submit rejection; `react-ui-error.ts` gives each send at most one automatic UI recovery, then pauses rejoin without cancelling the server run. Token activity must not reset that budget. The top-level `ReactUiErrorBoundary` catches only this render/commit error, shows a static friendly reload panel, and never automatically remounts the failing tree. Other errors are not swallowed. Shared toasts are deduplicated for 30 seconds; diagnostics retain error type, recovery phase, thread/run identifiers and component stack but never message/tool content. Real SDK SSE replay covers partial reasoning and write_file Markdown before generation ends; the browser boundary check triggers a real production React layout-effect loop and requires manual reload to recover. These safeguards do not prove the unknown production component loop is fixed.
+- **流式游标作用域**: resumable cursors belong to the current SDK message accumulator, not a module-global map. `createStreamAPIClient` isolates same-reader recovery; newly mounted chats and real thread switches must replay the retained prefix instead of borrowing another reader's consumed position. Clearing replaces the cursor map so late old-reader events cannot pollute the new scope. The shared `getAPIClient` does not rewrite replay-from-start cursors. `stream-cursor-replay.test.ts` uses the real SDK to protect against both duplicate tool arguments on reconnect and missing prefixes on reopening.
+- **单智能体任务深链聊天记录（2026-10-19）**: `3qfx` / `rwfx` / `xdfx` 已不再通过 `useTaskThreads` 扫描、过滤通用 `threads_meta` 列表；`TaskFxWorkspace` / `TaskFxIndexResolver` 统一调用 `useTaskDeeplinkThreads` → `GET /api/task-deeplink-threads?task_id=&go_path=`，读取独立表 `task_deeplink_threads` 的 `(task_id, go_path)` 索引，再按 `thread_id` 关联 canonical `threads_meta` 标题/状态（消息与 checkpoint 仍由 LangGraph 管理）。新会话 metadata 写 `taskRecordId`、`taskGoPath`、`thread_type=task_deeplink` 并由 thread-meta 仓储同事务登记；`3qfx/rwfx` 的 `taskRecordId` 是任务 id，`xdfx` 是 URL 原始行动 id（真实任务 id 仍保留在 `metadata.taskId` 维持共享访问语义）。普通聊天记录默认隐藏该 thread type；显式 taskId 查询仍可读取。迁移 `20261019_01` **只建表、不回填旧数据**，因此上线前旧深链会话不会出现在新列表。`/api/open/3qfx/ask` 同样写专用索引。Tests: `packages/harness/tests/test_task_deeplink_threads.py`, `src/core/auth/task-purpose-metadata.test.ts`, `src/core/threads/hidden-chats.test.ts`。
 - **State**: TanStack Query for server state, context providers (`SubtasksProvider`, `ArtifactsProvider`, `PromptInputProvider`) scoped to `WorkspaceRoutes`
 - **LLM streaming**: `@langchain/langgraph-sdk` streams messages from the backend via SSE
 - **UI**: Radix UI primitives + TailwindCSS v4 + shadcn-style components in `src/components/ui/`