Merge branch 'master' of http://192.168.0.200/knowledge-base-bj/deerflow-server into dhk-1

.gitignore

@@ -47,11 +47,9 @@ offline-backend-20260505/bundle/start_backend.sh
 offline-backend-20260505/bundle/stop_backend.sh
 
 # offline-backend-20260512 runtime artifacts (large files, local config, data)
-offline-backend-20260512/.env
 offline-backend-20260512/.env.example
 offline-backend-20260512/DEPLOY_BACKEND_OFFLINE_ZH.md
 offline-backend-20260512/SHA256SUMS
-offline-backend-20260512/config.yaml
 offline-backend-20260512/config.yaml.example
 offline-backend-20260512/data/
 offline-backend-20260512/deerflow-backend-offline-image-20260505.tar

frontend-web/src/App.tsx

@@ -13,6 +13,7 @@ import { HashRouter, useLocation } from "react-router-dom";
 import LandingPage from "./pages/LandingPage";
 import LoginPage from "./pages/LoginPage";
 import PageRoutes from "./pages/PageRoutes";
+import PublicSharePage from "./pages/PublicSharePage";
 import { NotFoundPage } from "./pages/NotFoundPage";
 
 function AppProviders({ children }: { children: React.ReactNode }) {
@@ -47,6 +48,8 @@ export function App() {
           <Route path="/login" element={<LoginPage />} />
           <Route path="/login/:username" element={<LoginPage />} />
           <Route path="/landing" element={<LandingPage />} />
+          {/* Public read-only conversation viewer — no authentication. */}
+          <Route path="/share/:shareCode" element={<PublicSharePage />} />
           <Route path="/page/*" element={<PageRoutes />} />
           <Route path="*" element={<NotFoundPage />} />
         </Routes>

frontend-web/src/components/workspace/messages/context.ts

@@ -6,6 +6,13 @@ import type { AgentThreadState } from "@/core/threads";
 export interface ThreadContextType {
   thread: BaseStream<AgentThreadState>;
   isMock?: boolean;
+  /**
+   * When set, the conversation is rendered from a public read-only share.
+   * Artifact/image URLs then resolve to the unauthenticated
+   * `/api/public/shares/{code}/files/...` endpoint instead of the
+   * auth-gated thread artifact route.
+   */
+  publicShareCode?: string;
 }
 
 export const ThreadContext = createContext<ThreadContextType | undefined>(

frontend-web/src/components/workspace/messages/message-list-item.tsx

@@ -2,6 +2,8 @@ import type { Message } from "@langchain/langgraph-sdk";
 import { FileIcon, Loader2Icon } from "lucide-react";
 import {
   memo,
+  useCallback,
+  useContext,
   useMemo,
   type AnchorHTMLAttributes,
   type ImgHTMLAttributes,
@@ -23,6 +25,7 @@ import {
 import { Task, TaskTrigger } from "@/components/ai-elements/task";
 import { Badge } from "@/components/ui/badge";
 import { resolveArtifactURL } from "@/core/artifacts/utils";
+import { getBackendBaseURL } from "@/core/config";
 import { useI18n } from "@/core/i18n/hooks";
 import {
   extractContentFromMessage,
@@ -38,9 +41,33 @@ import { cn } from "@/lib/utils";
 
 import { CopyButton } from "../copy-button";
 
+import { ThreadContext } from "./context";
 import { MarkdownContent } from "./markdown-content";
 import { MessageTokenUsage } from "./message-token-usage";
 
+/**
+ * Resolve an in-conversation file path to a fetchable URL.
+ *
+ * On a public read-only share (`ThreadContext.publicShareCode` set) artifact
+ * URLs point at the unauthenticated `/api/public/shares/{code}/files/...`
+ * endpoint; otherwise they use the normal auth-gated thread artifact route.
+ */
+function useArtifactResolver(threadId: string): (path: string) => string {
+  const publicShareCode = useContext(ThreadContext)?.publicShareCode;
+  return useCallback(
+    (path: string) => {
+      if (publicShareCode) {
+        const normalized = path.startsWith("/") ? path : `/${path}`;
+        return `${getBackendBaseURL()}/api/public/shares/${encodeURIComponent(
+          publicShareCode,
+        )}/files${normalized}`;
+      }
+      return resolveArtifactURL(path, threadId);
+    },
+    [publicShareCode, threadId],
+  );
+}
+
 export function MessageListItem({
   className,
   message,
@@ -102,6 +129,7 @@ function MessageImage({
   threadId: string;
   maxWidth?: string;
 }) {
+  const resolveArtifact = useArtifactResolver(threadId);
   if (!src) return null;
 
   const imgClassName = cn("overflow-hidden rounded-lg", `max-w-[${maxWidth}]`);
@@ -110,7 +138,7 @@ function MessageImage({
     return <img className={imgClassName} src={src} alt={alt} {...props} />;
   }
 
-  const url = src.startsWith("/mnt/") ? resolveArtifactURL(src, threadId) : src;
+  const url = src.startsWith("/mnt/") ? resolveArtifact(src) : src;
 
   return (
     <a href={url} target="_blank" rel="noopener noreferrer">
@@ -134,6 +162,7 @@ function MessageContent_({
 }) {
   const rehypePlugins = useRehypeSplitWordsIntoSpans(isLoading);
   const isHuman = message.type === "human";
+  const resolveArtifact = useArtifactResolver(threadId);
   const components = useMemo(
     () => ({
       img: (props: ImgHTMLAttributes<HTMLImageElement>) => (
@@ -141,7 +170,7 @@ function MessageContent_({
       ),
       a: ({ href, ...props }: AnchorHTMLAttributes<HTMLAnchorElement>) => {
         if (href?.startsWith("/mnt/")) {
-          const url = resolveArtifactURL(href, threadId);
+          const url = resolveArtifact(href);
           return (
             <a
               {...props}
@@ -154,7 +183,7 @@ function MessageContent_({
         return <a {...props} href={href} />;
       },
     }),
-    [threadId],
+    [threadId, resolveArtifact],
   );
 
   const rawContent = extractContentFromMessage(message);
@@ -347,6 +376,7 @@ function RichFileCard({
   threadId: string;
 }) {
   const { t } = useI18n();
+  const resolveArtifact = useArtifactResolver(threadId);
   const isUploading = file.status === "uploading";
   const isImage = isImageFile(file.filename);
 
@@ -379,7 +409,7 @@ function RichFileCard({
 
   if (!file.path) return null;
 
-  const fileUrl = resolveArtifactURL(file.path, threadId);
+  const fileUrl = resolveArtifact(file.path);
 
   if (isImage) {
     return (

frontend-web/src/components/workspace/recent-chat-list.tsx

@@ -42,6 +42,7 @@ import {
   SidebarMenuButton,
   SidebarMenuItem,
 } from "@/components/ui/sidebar";
+import { ShareConversationDialog } from "@/components/workspace/thread-share-dialogs";
 import { getAPIClient } from "@/core/api";
 import { useI18n } from "@/core/i18n/hooks";
 import {
@@ -76,6 +77,9 @@ export function RecentChatList() {
   const [renameThreadId, setRenameThreadId] = useState<string | null>(null);
   const [renameValue, setRenameValue] = useState("");
 
+  // Share dialog state — the conversation whose share code is being shown.
+  const [shareThreadId, setShareThreadId] = useState<string | null>(null);
+
   const handleDelete = useCallback(
     (threadId: string) => {
       deleteThread({ threadId });
@@ -115,18 +119,10 @@ export function RecentChatList() {
     }
   }, [renameThread, renameThreadId, renameValue]);
 
-  const handleShare = useCallback(
+  const handleShare = useCallback((thread: AgentThread) => {
-    async (thread: AgentThread) => {
+    // Opens the share-code dialog; the recipient imports a copy via that code.
-      const shareUrl = `${window.location.origin}${pathOfThread(thread)}`;
+    setShareThreadId(thread.thread_id);
-      try {
+  }, []);
-        await navigator.clipboard.writeText(shareUrl);
-        toast.success(t.clipboard.linkCopied);
-      } catch {
-        toast.error(t.clipboard.failedToCopyToClipboard);
-      }
-    },
-    [t],
-  );
 
   const handleExport = useCallback(
     async (thread: AgentThread, format: "markdown" | "json") => {
@@ -291,6 +287,15 @@ export function RecentChatList() {
           </DialogFooter>
         </DialogContent>
       </Dialog>
+
+      {/* Share Dialog */}
+      <ShareConversationDialog
+        threadId={shareThreadId}
+        open={shareThreadId !== null}
+        onOpenChange={(o) => {
+          if (!o) setShareThreadId(null);
+        }}
+      />
     </>
   );
 }

frontend-web/src/components/workspace/scheduled-tasks/schedule-builder.tsx

@@ -0,0 +1,220 @@
+"use client";
+
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+
+// ---- 时间配置 ----
+export type ScheduleFreq = "hourly" | "daily" | "weekly" | "monthly";
+
+export interface ScheduleConfig {
+  freq: ScheduleFreq;
+  minute: number;
+  hour: number;
+  weekday: number;
+  date: number;
+}
+
+export const DEFAULT_SCHEDULE_CONFIG: ScheduleConfig = {
+  freq: "daily",
+  minute: 0,
+  hour: 9,
+  weekday: 1,
+  date: 1,
+};
+
+const WEEKDAYS = ["周日", "周一", "周二", "周三", "周四", "周五", "周六"];
+const HOURS = Array.from({ length: 24 }, (_, i) => i);
+const MINUTES = [0, 15, 30, 45];
+const DATES = Array.from({ length: 31 }, (_, i) => i + 1);
+
+export function buildCron(cfg: ScheduleConfig): string {
+  // Keep the minute slot when the user picked one for daily/weekly/monthly too,
+  // so "每天 9:30" doesn't silently truncate to 9:00 on save → reload round trips.
+  const m = Number.isFinite(cfg.minute) ? cfg.minute : 0;
+  switch (cfg.freq) {
+    case "hourly":
+      return `${m} * * * *`;
+    case "daily":
+      return `${m} ${cfg.hour} * * *`;
+    case "weekly":
+      return `${m} ${cfg.hour} * * ${cfg.weekday}`;
+    case "monthly":
+      return `${m} ${cfg.hour} ${cfg.date} * *`;
+  }
+}
+
+// Parse a 5-field cron expression into the form picker state.
+//
+// Bug we keep getting bitten by: the edit dialog used to call
+// `parseCron(task.schedule_text)` and `schedule_text` may be the raw user
+// input (free-text like "每天 9 点") rather than a real cron string. The
+// fallback `DEFAULT_SCHEDULE_CONFIG` then made the picker silently
+// reinterpret the task. Callers should prefer `task.cron_expr` (the canonical
+// schedule produced by `_schedule_to_cron`); this function stays the single
+// source of truth for cron → picker, and also handles the looser step-syntax
+// variants (e.g. "0 */3 * * *") we sometimes generate.
+export function parseCron(cron: string | null | undefined): ScheduleConfig | null {
+  if (!cron) return null;
+  const parts = cron.trim().split(/\s+/);
+  if (parts.length !== 5) return null;
+  const [min, hr, date, , wd] = parts;
+  const minute = parseInt(min ?? "", 10);
+  const hour = parseInt(hr ?? "", 10);
+
+  // Hourly: ``M * * * *`` — match before the daily branch so a minute-only
+  // cron isn't misread as daily.
+  if (hr === "*" && date === "*" && wd === "*") {
+    if (!isNaN(minute)) {
+      return { ...DEFAULT_SCHEDULE_CONFIG, freq: "hourly", minute };
+    }
+  }
+  // ``0 */N * * *`` (every N hours): map to hourly with that minute; the
+  // picker doesn't model "every N hours" yet, so this is the safest fallback
+  // that at least doesn't silently round to 9:00.
+  if ((hr ?? "").startsWith("*/") && date === "*" && wd === "*") {
+    if (!isNaN(minute)) {
+      return { ...DEFAULT_SCHEDULE_CONFIG, freq: "hourly", minute };
+    }
+  }
+  if (date === "*" && wd === "*") {
+    if (!isNaN(hour)) {
+      return {
+        ...DEFAULT_SCHEDULE_CONFIG,
+        freq: "daily",
+        hour,
+        minute: isNaN(minute) ? 0 : minute,
+      };
+    }
+  }
+  if (date === "*" && wd !== "*") {
+    const weekday = parseInt(wd ?? "", 10);
+    if (!isNaN(hour) && !isNaN(weekday)) {
+      return {
+        ...DEFAULT_SCHEDULE_CONFIG,
+        freq: "weekly",
+        hour,
+        weekday,
+        minute: isNaN(minute) ? 0 : minute,
+      };
+    }
+  }
+  if (wd === "*" && date !== "*") {
+    const d = parseInt(date ?? "", 10);
+    if (!isNaN(hour) && !isNaN(d)) {
+      return {
+        ...DEFAULT_SCHEDULE_CONFIG,
+        freq: "monthly",
+        hour,
+        date: d,
+        minute: isNaN(minute) ? 0 : minute,
+      };
+    }
+  }
+  return null;
+}
+
+export function ScheduleBuilder({
+  value,
+  onChange,
+}: {
+  value: ScheduleConfig;
+  onChange: (cfg: ScheduleConfig) => void;
+}) {
+  const set = (patch: Partial<ScheduleConfig>) => onChange({ ...value, ...patch });
+  return (
+    <div className="flex flex-wrap gap-2">
+      <Select value={value.freq} onValueChange={(v) => set({ freq: v as ScheduleFreq })}>
+        <SelectTrigger className="w-28">
+          <SelectValue />
+        </SelectTrigger>
+        <SelectContent>
+          <SelectItem value="hourly">每小时</SelectItem>
+          <SelectItem value="daily">每天</SelectItem>
+          <SelectItem value="weekly">每周</SelectItem>
+          <SelectItem value="monthly">每月</SelectItem>
+        </SelectContent>
+      </Select>
+
+      {value.freq === "hourly" && (
+        <Select value={String(value.minute)} onValueChange={(v) => set({ minute: parseInt(v) })}>
+          <SelectTrigger className="w-24">
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            {MINUTES.map((m) => (
+              <SelectItem key={m} value={String(m)}>{m} 分</SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+      )}
+
+      {value.freq === "weekly" && (
+        <Select value={String(value.weekday)} onValueChange={(v) => set({ weekday: parseInt(v) })}>
+          <SelectTrigger className="w-24">
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            {WEEKDAYS.map((d, i) => (
+              <SelectItem key={i} value={String(i)}>{d}</SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+      )}
+
+      {value.freq === "monthly" && (
+        <Select value={String(value.date)} onValueChange={(v) => set({ date: parseInt(v) })}>
+          <SelectTrigger className="w-24">
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            {DATES.map((d) => (
+              <SelectItem key={d} value={String(d)}>第 {d} 日</SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+      )}
+
+      {value.freq !== "hourly" && (
+        <Select value={String(value.hour)} onValueChange={(v) => set({ hour: parseInt(v) })}>
+          <SelectTrigger className="w-24">
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            {HOURS.map((h) => (
+              <SelectItem key={h} value={String(h)}>{h} 时</SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+      )}
+    </div>
+  );
+}
+
+export function statusLabel(status?: string | null) {
+  switch (status) {
+    case "succeeded":
+      return "成功";
+    case "failed":
+      return "失败";
+    case "running":
+      return "执行中";
+    case "pending":
+      return "等待中";
+    default:
+      return status || "未知";
+  }
+}
+
+export function statusVariant(
+  status?: string | null,
+): "default" | "secondary" | "destructive" | "outline" {
+  if (status === "succeeded") return "default";
+  if (status === "failed") return "destructive";
+  if (status === "running") return "secondary";
+  return "outline";
+}

frontend-web/src/components/workspace/skills/skill-detail-dialog.tsx

@@ -1,10 +1,24 @@
 "use client";
 
-import { Loader2, PencilIcon } from "lucide-react";
+import {
+  ChevronDownIcon,
+  FileCode2Icon,
+  FileTextIcon,
+  GlobeIcon,
+  Loader2,
+  PencilIcon,
+  SparklesIcon,
+} from "lucide-react";
 import { useEffect, useMemo, useState } from "react";
 import { toast } from "sonner";
 
+import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
+import {
+  Collapsible,
+  CollapsibleContent,
+  CollapsibleTrigger,
+} from "@/components/ui/collapsible";
 import {
   Dialog,
   DialogContent,
@@ -23,15 +37,18 @@ import {
 } from "@/core/skills/hooks";
 import type { Skill } from "@/core/skills/type";
 import { reasoningPlugins } from "@/core/streamdown";
+import { cn } from "@/lib/utils";
 
 /**
- * Whether the current user may edit a skill's detail text.
+ * Whether the current user may edit a skill's detail text and view its raw
+ * SKILL.md source.
  *
- * Admins can edit any skill; the publisher (owner of a custom skill) can edit
+ * Admins qualify for any skill; the publisher (owner of a custom skill) for
  * their own. Built-in skills have no human owner, so only admins qualify.
- * Mirrors the backend authz in `PUT /api/skills/{name}/detail`.
+ * Mirrors the backend authz in `PUT /api/skills/{name}/detail` and
+ * `GET /api/skills/{name}/content`.
  */
-function canEditSkillDetail(skill: Skill | null | undefined): boolean {
+function canManageSkill(skill: Skill | null | undefined): boolean {
   if (!skill) return false;
   const auth = getStoredAuth();
   if (!auth) return false;
@@ -45,8 +62,9 @@ function canEditSkillDetail(skill: Skill | null | undefined): boolean {
 
 /**
  * Reusable skill detail dialog. Given a skill name it fetches the skill
- * metadata (including the admin/owner-authored `detail`) and the raw SKILL.md
+ * metadata (including the admin/owner-authored `detail`) and lets authorized
- * source, and lets authorized users edit the detail inline.
+ * users edit the detail inline. The raw SKILL.md source is shown only to the
+ * publisher or an admin — everyone else sees just the description and detail.
  */
 export function SkillDetailDialog({
   skillName,
@@ -62,17 +80,22 @@ export function SkillDetailDialog({
   // Only fetch while the dialog is open to avoid background requests.
   const activeName = open ? skillName : null;
   const { data: skill, isLoading: isSkillLoading } = useSkill(activeName);
-  const {
-    data: contentData,
-    isLoading: isContentLoading,
-    error: contentError,
-  } = useSkillContent(activeName);
   const setDetail = useSetSkillDetail();
 
   const [editing, setEditing] = useState(false);
   const [draft, setDraft] = useState("");
   const [showSource, setShowSource] = useState(false);
 
+  const canManage = useMemo(() => canManageSkill(skill), [skill]);
+
+  // The SKILL.md source endpoint is publisher/admin-only — only request it
+  // when the viewer is actually allowed to see it.
+  const {
+    data: contentData,
+    isLoading: isContentLoading,
+    error: contentError,
+  } = useSkillContent(open && canManage ? skillName : null);
+
   // Reset transient UI whenever the dialog closes or switches to another skill.
   useEffect(() => {
     if (!open) {
@@ -81,8 +104,6 @@ export function SkillDetailDialog({
     }
   }, [open, skillName]);
 
-  const canEdit = useMemo(() => canEditSkillDetail(skill), [skill]);
-
   function startEditing() {
     setDraft(skill?.detail ?? "");
     setEditing(true);
@@ -101,22 +122,54 @@ export function SkillDetailDialog({
 
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
-      <DialogContent className="flex max-h-[80vh] flex-col gap-3 sm:max-w-2xl">
+      <DialogContent className="flex max-h-[85vh] flex-col gap-0 overflow-hidden p-0 sm:max-w-2xl">
-        <DialogHeader>
+        {/* Header */}
-          <DialogTitle>{skill?.name ?? skillName ?? ""}</DialogTitle>
+        <DialogHeader className="space-y-0 border-b px-6 py-4 text-left">
-          <DialogDescription>{skill?.description}</DialogDescription>
+          <div className="flex items-start gap-3">
+            <div className="bg-primary/10 text-primary flex size-9 shrink-0 items-center justify-center rounded-lg">
+              <SparklesIcon className="size-5" />
+            </div>
+            <div className="min-w-0 flex-1">
+              <div className="flex flex-wrap items-center gap-2">
+                <DialogTitle className="truncate text-base">
+                  {skill?.name ?? skillName ?? ""}
+                </DialogTitle>
+                {skill?.builtin && (
+                  <Badge variant="secondary" className="text-xs">
+                    {tx.badgeBuiltin}
+                  </Badge>
+                )}
+                {skill?.published && (
+                  <Badge
+                    variant="outline"
+                    className="border-sky-500/30 text-sky-700 dark:text-sky-300 text-xs"
+                  >
+                    <GlobeIcon className="size-3" />
+                    {tx.badgePublished}
+                  </Badge>
+                )}
+              </div>
+              <DialogDescription className="mt-1 text-sm leading-relaxed">
+                {skill?.description || "—"}
+              </DialogDescription>
+            </div>
+          </div>
         </DialogHeader>
 
-        <div className="min-h-0 flex-1 space-y-4 overflow-auto pr-1">
+        {/* Body */}
+        <div className="min-h-0 flex-1 space-y-5 overflow-auto px-6 py-5">
           {/* Detail — human-authored long-form introduction */}
           <section className="space-y-2">
             <div className="flex items-center justify-between">
-              <h3 className="text-sm font-medium">{tx.detailSectionTitle}</h3>
+              <h3 className="text-foreground/90 flex items-center gap-1.5 text-sm font-semibold">
-              {canEdit && !editing && (
+                <FileTextIcon className="text-muted-foreground size-4" />
+                {tx.detailSectionTitle}
+              </h3>
+              {canManage && !editing && (
                 <Button
                   size="sm"
                   variant="ghost"
-                  className="h-7"
+                  className="text-muted-foreground hover:text-foreground h-7 px-2"
                   onClick={startEditing}
                 >
                   <PencilIcon className="size-3.5" />
@@ -124,15 +177,17 @@ export function SkillDetailDialog({
                 </Button>
               )}
             </div>
+
             {editing ? (
               <div className="space-y-2">
                 <Textarea
                   value={draft}
                   onChange={(e) => setDraft(e.currentTarget.value)}
                   placeholder={tx.detailPlaceholder}
-                  className="max-h-[320px] min-h-40 resize-y overflow-y-auto text-sm"
+                  className="max-h-[320px] min-h-44 resize-y overflow-y-auto text-sm leading-relaxed"
+                  autoFocus
                 />
-                <div className="flex justify-end gap-2">
+                <div className="flex items-center justify-end gap-2">
                   <Button
                     size="sm"
                     variant="outline"
@@ -154,12 +209,12 @@ export function SkillDetailDialog({
                 </div>
               </div>
             ) : isSkillLoading ? (
-              <div className="text-muted-foreground flex items-center gap-2 text-sm">
+              <div className="text-muted-foreground flex items-center gap-2 rounded-lg border border-dashed px-4 py-8 text-sm">
                 <Loader2 className="size-4 animate-spin" />
                 {t.common.loading}
               </div>
             ) : skill?.detail ? (
-              <div className="bg-muted/40 rounded-md border p-3 text-sm">
+              <div className="bg-muted/30 rounded-lg border p-4 text-sm leading-relaxed">
                 <MarkdownContent
                   content={skill.detail}
                   isLoading={false}
@@ -168,44 +223,55 @@ export function SkillDetailDialog({
                 />
               </div>
             ) : (
-              <p className="text-muted-foreground text-sm">
+              <div className="text-muted-foreground rounded-lg border border-dashed px-4 py-8 text-center">
-                {tx.detailEmpty}
+                <FileTextIcon className="mx-auto mb-2 size-6 opacity-40" />
-                {!canEdit ? ` ${tx.detailAdminOnlyHint}` : ""}
+                <p className="text-sm">{tx.detailEmpty}</p>
-              </p>
+                {!canManage && (
-            )}
+                  <p className="mt-1 text-xs">{tx.detailAdminOnlyHint}</p>
-          </section>
-
-          {/* SKILL.md source — collapsed by default */}
-          <section className="space-y-2">
-            <button
-              type="button"
-              className="text-muted-foreground hover:text-foreground text-sm font-medium"
-              onClick={() => setShowSource((v) => !v)}
-            >
-              {showSource ? "▾ " : "▸ "}
-              {tx.contentSectionTitle}
-            </button>
-            {showSource && (
-              <div className="bg-muted/40 overflow-auto rounded-md border">
-                {isContentLoading ? (
-                  <div className="text-muted-foreground flex items-center justify-center gap-2 py-10 text-sm">
-                    <Loader2 className="size-4 animate-spin" />
-                    {t.common.loading}
-                  </div>
-                ) : contentError ? (
-                  <div className="text-destructive p-4 text-sm">
-                    {contentError instanceof Error
-                      ? contentError.message
-                      : String(contentError)}
-                  </div>
-                ) : (
-                  <pre className="text-foreground/90 max-h-[320px] overflow-auto whitespace-pre-wrap wrap-break-word p-4 font-mono text-xs leading-relaxed">
-                    {contentData?.content}
-                  </pre>
                 )}
               </div>
             )}
           </section>
+
+          {/* SKILL.md source — publisher / admin only, collapsed by default */}
+          {canManage && (
+            <section>
+              <Collapsible open={showSource} onOpenChange={setShowSource}>
+                <CollapsibleTrigger className="bg-muted/30 hover:bg-muted/60 flex w-full items-center justify-between rounded-lg border px-4 py-2.5 text-sm font-semibold transition-colors">
+                  <span className="flex items-center gap-1.5">
+                    <FileCode2Icon className="text-muted-foreground size-4" />
+                    {tx.contentSectionTitle}
+                  </span>
+                  <ChevronDownIcon
+                    className={cn(
+                      "text-muted-foreground size-4 transition-transform",
+                      showSource && "rotate-180",
+                    )}
+                  />
+                </CollapsibleTrigger>
+                <CollapsibleContent className="pt-2">
+                  <div className="bg-muted/50 max-h-[340px] overflow-auto rounded-lg border">
+                    {isContentLoading ? (
+                      <div className="text-muted-foreground flex items-center justify-center gap-2 py-12 text-sm">
+                        <Loader2 className="size-4 animate-spin" />
+                        {t.common.loading}
+                      </div>
+                    ) : contentError ? (
+                      <div className="text-destructive p-4 text-sm">
+                        {contentError instanceof Error
+                          ? contentError.message
+                          : String(contentError)}
+                      </div>
+                    ) : (
+                      <pre className="text-foreground/80 p-4 font-mono text-xs leading-relaxed break-words whitespace-pre-wrap">
+                        {contentData?.content}
+                      </pre>
+                    )}
+                  </div>
+                </CollapsibleContent>
+              </Collapsible>
+            </section>
+          )}
         </div>
       </DialogContent>
     </Dialog>

frontend-web/src/components/workspace/thread-share-dialogs.tsx

@@ -0,0 +1,328 @@
+"use client";
+
+import {
+  CheckIcon,
+  CopyIcon,
+  DownloadIcon,
+  ExternalLinkIcon,
+  Loader2,
+  Trash2Icon,
+} from "lucide-react";
+import { useEffect, useState } from "react";
+import { toast } from "sonner";
+
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { Input } from "@/components/ui/input";
+import { useI18n } from "@/core/i18n/hooks";
+import type {
+  SharePreview,
+  ThreadShare,
+  ThreadShareMode,
+} from "@/core/thread-shares/api";
+import { buildPublicShareUrl, extractShareCode } from "@/core/thread-shares/api";
+import {
+  useCreateShare,
+  useImportShare,
+  usePreviewShare,
+  useRevokeShare,
+} from "@/core/thread-shares/hooks";
+import { cn } from "@/lib/utils";
+
+function errorMessage(err: unknown): string {
+  return err instanceof Error ? err.message : String(err);
+}
+
+/**
+ * Dialog that produces a share link for a single conversation. Two modes:
+ *
+ * - `import` — mints a short code; a recipient enters it in the import dialog
+ *   to copy the conversation into their own account.
+ * - `view` — mints a public, read-only link that anyone can open without
+ *   logging in (a static page; viewers cannot send new messages).
+ */
+export function ShareConversationDialog({
+  threadId,
+  open,
+  onOpenChange,
+}: {
+  threadId: string | null;
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+}) {
+  const { t } = useI18n();
+  const tx = t.threadShare;
+  const createShare = useCreateShare();
+  const revokeShare = useRevokeShare();
+  const [mode, setMode] = useState<ThreadShareMode>("view");
+  const [share, setShare] = useState<ThreadShare | null>(null);
+  const [copied, setCopied] = useState(false);
+
+  // Reset to the default mode (read-only link) every time the dialog opens.
+  useEffect(() => {
+    if (open) setMode("view");
+  }, [open, threadId]);
+
+  // Mint / reuse the link whenever the dialog opens or the mode changes.
+  useEffect(() => {
+    if (!open || !threadId) return;
+    setShare(null);
+    setCopied(false);
+    createShare
+      .mutateAsync({ threadId, mode })
+      .then(setShare)
+      .catch((err) => toast.error(errorMessage(err)));
+    // createShare is stable enough; re-running only on open/threadId/mode is intended.
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [open, threadId, mode]);
+
+  const isView = mode === "view";
+  const publicUrl =
+    isView && share ? buildPublicShareUrl(share.share_code) : "";
+
+  async function handleCopy() {
+    if (!share) return;
+    const text = isView ? publicUrl : share.share_code;
+    try {
+      await navigator.clipboard.writeText(text);
+      setCopied(true);
+      toast.success(isView ? "链接已复制" : tx.codeCopied);
+      setTimeout(() => setCopied(false), 1500);
+    } catch {
+      toast.error(t.clipboard.failedToCopyToClipboard);
+    }
+  }
+
+  async function handleRevoke() {
+    if (!share || !window.confirm(tx.revokeConfirm)) return;
+    try {
+      await revokeShare.mutateAsync(share.share_code);
+      toast.success(tx.revokeSuccess);
+      onOpenChange(false);
+    } catch (err) {
+      toast.error(errorMessage(err));
+    }
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="sm:max-w-md">
+        <DialogHeader>
+          <DialogTitle>{tx.shareTitle}</DialogTitle>
+          <DialogDescription>
+            {isView
+              ? "生成一个只读链接，任何人无需登录都能查看这个对话，但不能继续提问。"
+              : tx.shareDescription}
+          </DialogDescription>
+        </DialogHeader>
+
+        {/* Mode selector */}
+        <div className="bg-muted flex gap-1 rounded-lg p-1">
+          {(
+            [
+              { value: "view" as const, label: "只读链接" },
+              { value: "import" as const, label: "导入副本" },
+            ]
+          ).map((option) => (
+            <button
+              key={option.value}
+              type="button"
+              onClick={() => setMode(option.value)}
+              className={cn(
+                "flex-1 rounded-md px-3 py-1.5 text-sm transition-colors",
+                mode === option.value
+                  ? "bg-background text-foreground shadow-sm"
+                  : "text-muted-foreground hover:text-foreground",
+              )}
+            >
+              {option.label}
+            </button>
+          ))}
+        </div>
+
+        {!share ? (
+          <div className="text-muted-foreground flex items-center gap-2 py-8 text-sm">
+            <Loader2 className="size-4 animate-spin" />
+            {tx.generating}
+          </div>
+        ) : (
+          <div className="space-y-3">
+            <div>
+              <p className="text-muted-foreground mb-1 text-xs">
+                {isView ? "只读链接" : tx.shareCodeLabel}
+              </p>
+              <div className="flex items-center gap-2">
+                {isView ? (
+                  <Input
+                    readOnly
+                    value={publicUrl}
+                    onFocus={(e) => e.currentTarget.select()}
+                    className="flex-1 font-mono text-xs"
+                  />
+                ) : (
+                  <code className="bg-muted flex-1 rounded-md px-3 py-2 text-center font-mono text-lg tracking-[0.3em]">
+                    {share.share_code}
+                  </code>
+                )}
+                <Button variant="outline" onClick={() => void handleCopy()}>
+                  {copied ? (
+                    <CheckIcon className="size-4" />
+                  ) : (
+                    <CopyIcon className="size-4" />
+                  )}
+                  {isView ? "复制链接" : tx.copyCode}
+                </Button>
+              </div>
+            </div>
+            {isView ? (
+              <div className="space-y-3">
+                <p className="text-muted-foreground text-xs">
+                  拿到链接的人都能查看这个对话的全部内容（只读），无法继续发送问题。撤销后链接立即失效。
+                </p>
+                <Button
+                  variant="outline"
+                  size="sm"
+                  onClick={() => window.open(publicUrl, "_blank", "noopener")}
+                >
+                  <ExternalLinkIcon className="size-3.5" />
+                  在新标签页打开
+                </Button>
+              </div>
+            ) : (
+              <p className="text-muted-foreground text-xs">{tx.shareHint}</p>
+            )}
+            <Button
+              variant="ghost"
+              size="sm"
+              className="text-destructive hover:text-destructive"
+              disabled={revokeShare.isPending}
+              onClick={() => void handleRevoke()}
+            >
+              <Trash2Icon className="size-3.5" />
+              {tx.revoke}
+            </Button>
+          </div>
+        )}
+      </DialogContent>
+    </Dialog>
+  );
+}
+
+/** Dialog where a user pastes a share code to import someone's conversation. */
+export function ImportConversationsDialog({
+  open,
+  onOpenChange,
+}: {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+}) {
+  const { t } = useI18n();
+  const tx = t.threadShare;
+  const [input, setInput] = useState("");
+  const [preview, setPreview] = useState<SharePreview | null>(null);
+  const previewShare = usePreviewShare();
+  const importShare = useImportShare();
+
+  // Reset state whenever the dialog closes.
+  useEffect(() => {
+    if (!open) {
+      setInput("");
+      setPreview(null);
+    }
+  }, [open]);
+
+  async function handlePreview() {
+    const code = extractShareCode(input);
+    if (!code) {
+      toast.error(tx.emptyCode);
+      return;
+    }
+    try {
+      setPreview(await previewShare.mutateAsync(code));
+    } catch (err) {
+      setPreview(null);
+      toast.error(errorMessage(err));
+    }
+  }
+
+  async function handleImport() {
+    const code = preview?.share_code ?? extractShareCode(input);
+    if (!code) {
+      toast.error(tx.emptyCode);
+      return;
+    }
+    try {
+      const result = await importShare.mutateAsync(code);
+      if (result.imported > 0) {
+        toast.success(tx.importSuccess);
+      } else {
+        toast.info(tx.alreadyImported);
+      }
+      onOpenChange(false);
+    } catch (err) {
+      toast.error(errorMessage(err));
+    }
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="sm:max-w-md">
+        <DialogHeader>
+          <DialogTitle>{tx.importTitle}</DialogTitle>
+          <DialogDescription>{tx.importDescription}</DialogDescription>
+        </DialogHeader>
+
+        <div className="flex gap-2">
+          <Input
+            value={input}
+            onChange={(e) => {
+              setInput(e.target.value);
+              setPreview(null);
+            }}
+            placeholder={tx.codeInputPlaceholder}
+            className="font-mono"
+          />
+          <Button
+            variant="outline"
+            onClick={() => void handlePreview()}
+            disabled={previewShare.isPending || !input.trim()}
+          >
+            {previewShare.isPending && (
+              <Loader2 className="size-4 animate-spin" />
+            )}
+            {tx.preview}
+          </Button>
+        </div>
+
+        {preview && (
+          <div className="space-y-2 rounded-lg border p-3 text-sm">
+            <p className="font-medium">
+              {tx.previewConversation.replace("{title}", preview.title)}
+            </p>
+            <p className="text-muted-foreground text-xs">
+              {tx.previewFrom.replace("{user}", preview.shared_by)}
+            </p>
+            <Button
+              className="w-full"
+              onClick={() => void handleImport()}
+              disabled={importShare.isPending}
+            >
+              {importShare.isPending ? (
+                <Loader2 className="size-4 animate-spin" />
+              ) : (
+                <DownloadIcon className="size-4" />
+              )}
+              {importShare.isPending ? tx.importing : tx.doImport}
+            </Button>
+          </div>
+        )}
+      </DialogContent>
+    </Dialog>
+  );
+}

frontend-web/src/components/workspace/workspace-nav-chat-list.tsx

@@ -13,7 +13,7 @@ import {
 } from "@/components/ui/sidebar";
 import { getStoredAuth } from "@/core/auth";
 import { useI18n } from "@/core/i18n/hooks";
-import { BotIcon, ListChecks, MessageSquarePlus, MessagesSquare, SparklesIcon, UsersIcon } from "lucide-react";
+import { BotIcon, CalendarClock, ListChecks, MessageSquarePlus, MessagesSquare, SparklesIcon, UsersIcon } from "lucide-react";
 
 export function WorkspaceNavChatList() {
   const { t } = useI18n();
@@ -77,7 +77,7 @@ export function WorkspaceNavChatList() {
         {isAdmin && (
           <SidebarMenuItem>
             <SidebarMenuButton
-              isActive={pathname.startsWith("/page/workspace/admin")}
+              isActive={pathname === "/page/workspace/admin/users"}
               asChild
             >
               <Link className="text-sidebar-foreground" href="/page/workspace/admin/users">
@@ -87,6 +87,22 @@ export function WorkspaceNavChatList() {
             </SidebarMenuButton>
           </SidebarMenuItem>
         )}
+        {isAdmin && (
+          <SidebarMenuItem>
+            <SidebarMenuButton
+              isActive={pathname === "/page/workspace/admin/scheduled-tasks"}
+              asChild
+            >
+              <Link
+                className="text-sidebar-foreground"
+                href="/page/workspace/admin/scheduled-tasks"
+              >
+                <CalendarClock />
+                <span>定时任务管理</span>
+              </Link>
+            </SidebarMenuButton>
+          </SidebarMenuItem>
+        )}
       </SidebarMenu>
     </SidebarGroup>
   );

frontend-web/src/core/i18n/locales/en-US.ts

@@ -250,6 +250,35 @@ export const enUS: Translations = {
     searchChats: "Search chats",
   },
 
+  // Conversation sharing
+  threadShare: {
+    importChats: "Import chat",
+    shareTitle: "Share conversation",
+    shareDescription:
+      'Share this conversation with others. They enter the code under "Import chat" to copy it into their own account and keep chatting.',
+    generating: "Generating code...",
+    shareCodeLabel: "Share code",
+    copyCode: "Copy",
+    codeCopied: "Share code copied",
+    shareHint:
+      "Anyone who has the code can copy this conversation — share it carefully.",
+    revoke: "Revoke share",
+    revokeConfirm: "Revoking makes the code unusable immediately. Continue?",
+    revokeSuccess: "Share revoked",
+    importTitle: "Import a conversation",
+    importDescription:
+      "Enter a share code to copy the shared conversation into your account.",
+    codeInputPlaceholder: "Paste a share code",
+    preview: "Preview",
+    previewConversation: "Conversation: {title}",
+    previewFrom: "From user {user}",
+    doImport: "Import",
+    importing: "Importing...",
+    importSuccess: "Conversation imported",
+    alreadyImported: "You have already imported this conversation",
+    emptyCode: "Enter a share code first",
+  },
+
   // Page titles (document title)
   pages: {
     appName: "CM Assistant",

frontend-web/src/core/i18n/locales/types.ts

@@ -194,6 +194,32 @@ export interface Translations {
     searchChats: string;
   };
 
+  // Conversation sharing
+  threadShare: {
+    importChats: string;
+    shareTitle: string;
+    shareDescription: string;
+    generating: string;
+    shareCodeLabel: string;
+    copyCode: string;
+    codeCopied: string;
+    shareHint: string;
+    revoke: string;
+    revokeConfirm: string;
+    revokeSuccess: string;
+    importTitle: string;
+    importDescription: string;
+    codeInputPlaceholder: string;
+    preview: string;
+    previewConversation: string;
+    previewFrom: string;
+    doImport: string;
+    importing: string;
+    importSuccess: string;
+    alreadyImported: string;
+    emptyCode: string;
+  };
+
   // Page titles (document title)
   pages: {
     appName: string;

frontend-web/src/core/i18n/locales/zh-CN.ts

@@ -238,6 +238,33 @@ export const zhCN: Translations = {
     searchChats: "搜索对话",
   },
 
+  // Conversation sharing
+  threadShare: {
+    importChats: "导入对话",
+    shareTitle: "分享对话",
+    shareDescription:
+      "把这个对话分享给他人。对方在「导入对话」里填入分享码,即可把它复制一份到自己账号并继续聊天。",
+    generating: "生成分享码中...",
+    shareCodeLabel: "分享码",
+    copyCode: "复制",
+    codeCopied: "分享码已复制",
+    shareHint: "知道分享码的人都能复制这个对话,请谨慎分享。",
+    revoke: "撤销分享",
+    revokeConfirm: "撤销后该分享码立即失效,确定撤销?",
+    revokeSuccess: "已撤销分享",
+    importTitle: "导入对话",
+    importDescription: "填入对方给你的分享码,把 TA 分享的那个对话复制到你的账号。",
+    codeInputPlaceholder: "粘贴分享码",
+    preview: "预览",
+    previewConversation: "对话:{title}",
+    previewFrom: "来自用户 {user}",
+    doImport: "导入",
+    importing: "导入中...",
+    importSuccess: "对话已导入",
+    alreadyImported: "你已经导入过这个对话了",
+    emptyCode: "请先填入分享码",
+  },
+
   // Page titles (document title)
   pages: {
     appName: "CM 助手",

frontend-web/src/core/scheduled-tasks/api.ts

@@ -8,6 +8,7 @@ import type {
   ScheduledTaskResultFileContent,
   ScheduledTaskRun,
   ScheduledTaskRunFileUpdateResponse,
+  ScheduledTaskRunMessagesResponse,
   ScheduledTaskSubscription,
   SchedulerThread,
 } from "./types";
@@ -79,6 +80,13 @@ export async function deleteScheduledTaskRun(runId: string) {
   );
 }
 
+/** Agent messages for a run's underlying agent run — used to inspect a stuck/running run. */
+export async function getScheduledTaskRunMessages(runId: string) {
+  return parseResponse<ScheduledTaskRunMessagesResponse>(
+    await apiFetch(`${baseUrl()}/runs/${encodeURIComponent(runId)}/messages`),
+  );
+}
+
 export function scheduledTaskRunDownloadUrl(runId: string) {
   return `${baseUrl()}/runs/${encodeURIComponent(runId)}/download`;
 }
@@ -296,3 +304,61 @@ export async function unsubscribeScheduledTask(taskId: string) {
     }),
   );
 }
+
+// --- Admin (cross-user management) ---
+
+/** List every scheduled task across all users. Admin-only endpoint. */
+export async function listAllScheduledTasks(search?: string) {
+  const qs = new URLSearchParams();
+  if (search) qs.set("search", search);
+  const query = qs.toString();
+  return parseResponse<ScheduledTask[]>(
+    await apiFetch(`${baseUrl()}/admin/all${query ? `?${query}` : ""}`),
+  );
+}
+
+/** List runs for any task regardless of owner. Admin-only endpoint. */
+export async function adminListScheduledTaskRuns(taskId: string) {
+  return parseResponse<ScheduledTaskRun[]>(
+    await apiFetch(`${baseUrl()}/admin/${encodeURIComponent(taskId)}/runs`),
+  );
+}
+
+/** Update any task regardless of owner. Admin-only endpoint. */
+export async function adminUpdateScheduledTask(
+  taskId: string,
+  data: Partial<{
+    name: string;
+    prompt: string;
+    schedule: string;
+    timezone: string;
+    enabled: boolean;
+    execution_agent_name: string | null;
+  }>,
+) {
+  return parseResponse<ScheduledTask>(
+    await apiFetch(`${baseUrl()}/admin/${encodeURIComponent(taskId)}`, {
+      method: "PATCH",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify(data),
+    }),
+  );
+}
+
+/** Delete any task regardless of owner. Admin-only endpoint. */
+export async function adminDeleteScheduledTask(taskId: string) {
+  return parseResponse<{ success: boolean }>(
+    await apiFetch(`${baseUrl()}/admin/${encodeURIComponent(taskId)}`, {
+      method: "DELETE",
+    }),
+  );
+}
+
+/** Trigger an immediate run of any task regardless of owner. Admin-only. */
+export async function adminTriggerScheduledTask(taskId: string) {
+  return parseResponse<{ success: boolean; task: ScheduledTask }>(
+    await apiFetch(`${baseUrl()}/admin/${encodeURIComponent(taskId)}/trigger`, {
+      method: "POST",
+    }),
+  );
+}

frontend-web/src/core/scheduled-tasks/hooks.ts

@@ -6,12 +6,18 @@ import {
 } from "@tanstack/react-query";
 
 import {
+  adminDeleteScheduledTask,
+  adminListScheduledTaskRuns,
+  adminTriggerScheduledTask,
+  adminUpdateScheduledTask,
   createScheduledTask,
   deleteScheduledTask,
   deleteScheduledTaskRun,
   getSchedulerThread,
   getScheduledTaskDeliveryProfile,
   getScheduledTaskRun,
+  getScheduledTaskRunMessages,
+  listAllScheduledTasks,
   listPublishedScheduledTasks,
   listScheduledTaskRuns,
   listScheduledTasks,
@@ -57,12 +63,34 @@ export function useScheduledTaskRuns(taskId?: string | null) {
   });
 }
 
+/** A run still in flight — used to drive live polling of the run/messages. */
+function runIsLive(status?: string | null): boolean {
+  return status === "running" || status === "pending";
+}
+
 export function useScheduledTaskRun(runId?: string | null) {
   return useQuery({
     queryKey: ["scheduled-tasks", "runs", runId],
     queryFn: () => getScheduledTaskRun(runId!),
     enabled: !!runId,
     refetchOnWindowFocus: false,
+    // Keep refreshing while the run is still executing so the detail page
+    // reflects status / result changes without a manual reload.
+    refetchInterval: (query) => (runIsLive(query.state.data?.status) ? 5000 : false),
+  });
+}
+
+/** Agent messages for a run; polls every 4s while the run is still executing. */
+export function useScheduledTaskRunMessages(
+  runId?: string | null,
+  options: { live?: boolean } = {},
+) {
+  return useQuery({
+    queryKey: ["scheduled-tasks", "runs", runId, "messages"],
+    queryFn: () => getScheduledTaskRunMessages(runId!),
+    enabled: !!runId,
+    refetchOnWindowFocus: false,
+    refetchInterval: options.live ? 4000 : false,
   });
 }
 
@@ -74,6 +102,64 @@ export function useScheduledTaskDeliveryProfile() {
   });
 }
 
+/** Admin: every scheduled task across all users. */
+export function useAllScheduledTasks(
+  params: { search?: string; enabled?: boolean } = {},
+) {
+  const search = params.search ?? "";
+  return useQuery({
+    queryKey: ["scheduled-tasks", "admin", "list", search],
+    queryFn: () => listAllScheduledTasks(search),
+    enabled: params.enabled ?? true,
+    refetchOnWindowFocus: false,
+    placeholderData: keepPreviousData,
+  });
+}
+
+/** Admin: runs for any task regardless of owner. */
+export function useAdminScheduledTaskRuns(taskId?: string | null) {
+  return useQuery({
+    queryKey: ["scheduled-tasks", "admin", taskId, "runs"],
+    queryFn: () => adminListScheduledTaskRuns(taskId!),
+    enabled: !!taskId,
+    refetchOnWindowFocus: false,
+  });
+}
+
+/** Admin mutations: edit / delete / trigger any task. */
+export function useAdminScheduledTaskActions() {
+  const queryClient = useQueryClient();
+  const invalidate = () =>
+    queryClient.invalidateQueries({ queryKey: ["scheduled-tasks"] });
+
+  return {
+    update: useMutation({
+      mutationFn: ({
+        taskId,
+        data,
+      }: {
+        taskId: string;
+        data: Parameters<typeof adminUpdateScheduledTask>[1];
+      }) => adminUpdateScheduledTask(taskId, data),
+      onSuccess: invalidate,
+    }),
+    remove: useMutation({
+      mutationFn: adminDeleteScheduledTask,
+      onSuccess: invalidate,
+    }),
+    // The DELETE /runs/{id} route is admin-aware, so the same call deletes
+    // any user's run when the caller is an admin.
+    removeRun: useMutation({
+      mutationFn: deleteScheduledTaskRun,
+      onSuccess: invalidate,
+    }),
+    trigger: useMutation({
+      mutationFn: adminTriggerScheduledTask,
+      onSuccess: invalidate,
+    }),
+  };
+}
+
 export function usePublishedScheduledTasks(enabled: boolean = true) {
   return useQuery({
     queryKey: ["scheduled-tasks", "published"],

frontend-web/src/core/scheduled-tasks/types.ts

@@ -94,6 +94,7 @@ export type ScheduledTaskRun = {
   status: "pending" | "running" | "succeeded" | "failed" | string;
   error?: string | null;
   result?: ScheduledTaskRunResult | null;
+  retry_count?: number | null;
   created_at?: string | null;
   updated_at?: string | null;
   can_edit?: boolean;
@@ -106,3 +107,19 @@ export type ScheduledTaskRunFileUpdateResponse = {
   mime_type?: string | null;
   kind?: string | null;
 };
+
+/** One agent message produced by a scheduled run's underlying agent run. */
+export type ScheduledTaskRunMessage = {
+  seq: number;
+  event_type: string;
+  category: string;
+  // string for human input; object (LangChain message dump) for ai/tool.
+  content: unknown;
+  metadata?: Record<string, unknown> | null;
+  created_at?: string | null;
+};
+
+export type ScheduledTaskRunMessagesResponse = {
+  messages: ScheduledTaskRunMessage[];
+  has_more: boolean;
+};

frontend-web/src/core/thread-shares/api.ts

@@ -0,0 +1,137 @@
+import type { Message } from "@langchain/langgraph-sdk";
+
+import { apiFetch } from "@/core/api";
+import { getBackendBaseURL } from "@/core/config";
+
+/**
+ * Share modes:
+ * - `import` — recipient (a logged-in user) copies the conversation into
+ *   their own account and can keep chatting in the copy.
+ * - `view` — a public, read-only static page anyone can open without
+ *   logging in; viewers cannot send new messages.
+ */
+export type ThreadShareMode = "import" | "view";
+
+export interface ThreadShare {
+  share_code: string;
+  owner_user_id: string;
+  thread_id: string;
+  revoked: boolean;
+  mode: ThreadShareMode;
+  created_at: string | null;
+}
+
+/** Read-only conversation snapshot returned by the public view-share endpoint. */
+export interface PublicShareSnapshot {
+  share_code: string;
+  title: string;
+  mode: string;
+  messages: Message[];
+  artifacts: string[];
+  created_at: string | null;
+}
+
+export interface SharePreview {
+  share_code: string;
+  shared_by: string;
+  title: string;
+}
+
+export interface ImportResult {
+  imported: number;
+  skipped: number;
+}
+
+const baseUrl = () => `${getBackendBaseURL()}/api/thread-shares`;
+
+async function parseError(response: Response, fallback: string): Promise<Error> {
+  const data = (await response.json().catch(() => ({}))) as { detail?: unknown };
+  const detail = data.detail;
+  const message =
+    typeof detail === "string" && detail
+      ? detail
+      : `${fallback} (HTTP ${response.status})`;
+  return new Error(message);
+}
+
+/** Create (or reuse) a share code for one conversation in the given mode. */
+export async function createShare(
+  threadId: string,
+  mode: ThreadShareMode = "import",
+): Promise<ThreadShare> {
+  const response = await apiFetch(baseUrl(), {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({ thread_id: threadId, mode }),
+  });
+  if (!response.ok) throw await parseError(response, "创建分享失败");
+  return response.json() as Promise<ThreadShare>;
+}
+
+/** List the current user's own share links. */
+export async function listShares(): Promise<ThreadShare[]> {
+  const response = await apiFetch(baseUrl());
+  if (!response.ok) throw await parseError(response, "加载分享列表失败");
+  const json = (await response.json()) as { shares: ThreadShare[] };
+  return json.shares;
+}
+
+/** Revoke a share link so it can no longer be previewed or imported. */
+export async function revokeShare(shareCode: string): Promise<void> {
+  const response = await apiFetch(`${baseUrl()}/${encodeURIComponent(shareCode)}`, {
+    method: "DELETE",
+  });
+  if (!response.ok) throw await parseError(response, "撤销分享失败");
+}
+
+/** Preview a share link before importing it. */
+export async function previewShare(shareCode: string): Promise<SharePreview> {
+  const response = await apiFetch(
+    `${baseUrl()}/${encodeURIComponent(shareCode)}/preview`,
+  );
+  if (!response.ok) throw await parseError(response, "无法读取该分享");
+  return response.json() as Promise<SharePreview>;
+}
+
+/** Import every conversation behind a share link into the current account. */
+export async function importShare(shareCode: string): Promise<ImportResult> {
+  const response = await apiFetch(
+    `${baseUrl()}/${encodeURIComponent(shareCode)}/import`,
+    { method: "POST" },
+  );
+  if (!response.ok) throw await parseError(response, "导入失败");
+  return response.json() as Promise<ImportResult>;
+}
+
+/**
+ * Fetch the public read-only snapshot of a `view`-mode share.
+ *
+ * Uses a plain `fetch` (no auth header) — the `/api/public/` endpoint is
+ * intentionally world-readable so anyone with the link can open it.
+ */
+export async function getPublicShareSnapshot(
+  shareCode: string,
+): Promise<PublicShareSnapshot> {
+  const response = await fetch(
+    `${getBackendBaseURL()}/api/public/shares/${encodeURIComponent(shareCode)}`,
+  );
+  if (!response.ok) throw await parseError(response, "无法打开该分享");
+  return response.json() as Promise<PublicShareSnapshot>;
+}
+
+/** Build the shareable public URL for a `view`-mode share code. */
+export function buildPublicShareUrl(shareCode: string): string {
+  // The app uses HashRouter, so the public viewer lives at `#/share/<code>`.
+  return `${window.location.origin}${window.location.pathname}#/share/${shareCode}`;
+}
+
+/**
+ * Extract a share code from arbitrary pasted text — accepts either a raw code
+ * or a URL/link that contains one. Share codes are 6-12 chars from the
+ * unambiguous alphabet (no 0/1/O/I/L).
+ */
+export function extractShareCode(input: string): string {
+  const trimmed = input.trim();
+  const matches = trimmed.toUpperCase().match(/[A-HJ-NP-Z2-9]{6,12}/g);
+  return matches && matches.length > 0 ? matches[matches.length - 1] : trimmed;
+}

frontend-web/src/core/thread-shares/hooks.ts

@@ -0,0 +1,61 @@
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+
+import {
+  createShare,
+  importShare,
+  listShares,
+  previewShare,
+  revokeShare,
+  type ThreadShareMode,
+} from "./api";
+
+export function useShares(enabled = true) {
+  return useQuery({
+    queryKey: ["thread-shares"],
+    queryFn: listShares,
+    enabled,
+  });
+}
+
+export function useCreateShare() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      threadId,
+      mode = "import",
+    }: {
+      threadId: string;
+      mode?: ThreadShareMode;
+    }) => createShare(threadId, mode),
+    onSuccess: () => {
+      void queryClient.invalidateQueries({ queryKey: ["thread-shares"] });
+    },
+  });
+}
+
+export function useRevokeShare() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (shareCode: string) => revokeShare(shareCode),
+    onSuccess: () => {
+      void queryClient.invalidateQueries({ queryKey: ["thread-shares"] });
+    },
+  });
+}
+
+export function usePreviewShare() {
+  return useMutation({
+    mutationFn: (shareCode: string) => previewShare(shareCode),
+  });
+}
+
+export function useImportShare() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (shareCode: string) => importShare(shareCode),
+    onSuccess: () => {
+      // Imported conversations show up in the user's own thread list.
+      void queryClient.invalidateQueries({ queryKey: ["threads"] });
+    },
+  });
+}

frontend-web/src/pages/AdminScheduledTasksPage.tsx

@@ -0,0 +1,491 @@
+"use client";
+
+import { useEffect, useMemo, useRef, useState } from "react";
+import {
+  Download,
+  Edit3,
+  Eye,
+  Pause,
+  Play,
+  RefreshCw,
+  Search,
+  Trash2,
+} from "lucide-react";
+import { useSearchParams } from "react-router-dom";
+import { useRouteNavigate as useNavigate } from "@/core/route-base";
+import { toast } from "sonner";
+
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import {
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { Input } from "@/components/ui/input";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { Textarea } from "@/components/ui/textarea";
+import {
+  WorkspaceBody,
+  WorkspaceContainer,
+  WorkspaceHeader,
+} from "@/components/workspace/workspace-container";
+import {
+  buildCron,
+  DEFAULT_SCHEDULE_CONFIG,
+  parseCron,
+  ScheduleBuilder,
+  type ScheduleConfig,
+  statusLabel,
+  statusVariant,
+} from "@/components/workspace/scheduled-tasks/schedule-builder";
+import {
+  downloadScheduledTaskRun,
+  type ScheduledTask,
+  useAdminScheduledTaskActions,
+  useAdminScheduledTaskRuns,
+  useAllScheduledTasks,
+} from "@/core/scheduled-tasks";
+import { cn } from "@/lib/utils";
+
+function formatDate(value?: string | null) {
+  return value ? new Date(value).toLocaleString() : "暂无";
+}
+
+/** Render a creator-like identifier without the email domain part. */
+function displayUsername(value?: string | null): string {
+  const raw = (value ?? "").trim();
+  if (!raw) return "";
+  const at = raw.indexOf("@");
+  return at === -1 ? raw : raw.slice(0, at);
+}
+
+const emptyForm = {
+  name: "",
+  timezone: "Asia/Shanghai",
+  prompt: "",
+};
+
+export default function AdminScheduledTasksPage() {
+  const navigate = useNavigate();
+  const [searchParams] = useSearchParams();
+  // ?task= carries the task to re-select when returning from a run detail.
+  const initialTaskId = searchParams.get("task");
+  const [searchInput, setSearchInput] = useState("");
+  const [search, setSearch] = useState("");
+  const { data: tasks = [], isLoading } = useAllScheduledTasks({ search });
+  const actions = useAdminScheduledTaskActions();
+
+  const [selectedTaskId, setSelectedTaskId] = useState<string | null>(
+    initialTaskId,
+  );
+  // One-shot scroll target after a back-navigation.
+  const pendingScrollRef = useRef<string | null>(initialTaskId);
+  const [editing, setEditing] = useState<ScheduledTask | null>(null);
+  const [form, setForm] = useState(emptyForm);
+  const [scheduleConfig, setScheduleConfig] = useState<ScheduleConfig>(
+    DEFAULT_SCHEDULE_CONFIG,
+  );
+
+  const sortedTasks = useMemo(
+    () =>
+      [...tasks].sort((a, b) =>
+        String(a.next_run_at ?? "").localeCompare(String(b.next_run_at ?? "")),
+      ),
+    [tasks],
+  );
+  const selectedTask =
+    sortedTasks.find((task) => task.task_id === selectedTaskId) ?? null;
+  const { data: runs = [], isLoading: runsLoading } =
+    useAdminScheduledTaskRuns(selectedTaskId);
+
+  useEffect(() => {
+    if (!selectedTaskId && sortedTasks[0]) {
+      setSelectedTaskId(sortedTasks[0].task_id);
+    }
+    if (
+      selectedTaskId &&
+      !sortedTasks.some((task) => task.task_id === selectedTaskId)
+    ) {
+      setSelectedTaskId(sortedTasks[0]?.task_id ?? null);
+    }
+  }, [selectedTaskId, sortedTasks]);
+
+  const openEdit = (task: ScheduledTask) => {
+    setEditing(task);
+    setForm({
+      name: task.name,
+      timezone: task.timezone,
+      prompt: task.prompt,
+    });
+    setScheduleConfig(
+      parseCron(task.cron_expr) ??
+        parseCron(task.schedule_text) ??
+        DEFAULT_SCHEDULE_CONFIG,
+    );
+  };
+
+  const closeDialog = () => {
+    setEditing(null);
+    setForm(emptyForm);
+    setScheduleConfig(DEFAULT_SCHEDULE_CONFIG);
+  };
+
+  const saveTask = async () => {
+    if (!editing) return;
+    try {
+      await actions.update.mutateAsync({
+        taskId: editing.task_id,
+        data: {
+          name: form.name,
+          schedule: buildCron(scheduleConfig),
+          timezone: form.timezone,
+          prompt: form.prompt,
+        },
+      });
+      toast.success("任务已更新");
+      closeDialog();
+    } catch (error) {
+      toast.error(error instanceof Error ? error.message : "保存失败");
+    }
+  };
+
+  const toggleEnabled = async (task: ScheduledTask) => {
+    try {
+      await actions.update.mutateAsync({
+        taskId: task.task_id,
+        data: { enabled: !task.enabled },
+      });
+      toast.success(task.enabled ? "任务已暂停" : "任务已启用");
+    } catch (error) {
+      toast.error(error instanceof Error ? error.message : "操作失败");
+    }
+  };
+
+  const removeTask = async (task: ScheduledTask) => {
+    if (!window.confirm(`确认删除任务「${task.name}」？该操作不可撤销。`)) return;
+    try {
+      await actions.remove.mutateAsync(task.task_id);
+      toast.success("任务已删除");
+    } catch (error) {
+      toast.error(error instanceof Error ? error.message : "删除失败");
+    }
+  };
+
+  const triggerTask = async (task: ScheduledTask) => {
+    try {
+      await actions.trigger.mutateAsync(task.task_id);
+      toast.success("已触发执行");
+    } catch (error) {
+      toast.error(error instanceof Error ? error.message : "触发失败");
+    }
+  };
+
+  const downloadRun = async (runId: string) => {
+    try {
+      await downloadScheduledTaskRun(runId);
+    } catch (error) {
+      toast.error(error instanceof Error ? error.message : "下载失败");
+    }
+  };
+
+  const deleteRun = async (runId: string) => {
+    if (!window.confirm("确认删除这条执行记录？该操作不可撤销。")) return;
+    try {
+      await actions.removeRun.mutateAsync(runId);
+      toast.success("执行记录已删除");
+    } catch (error) {
+      toast.error(error instanceof Error ? error.message : "删除失败");
+    }
+  };
+
+  return (
+    <WorkspaceContainer>
+      <WorkspaceHeader />
+      <WorkspaceBody>
+        <div className="grid size-full min-h-0 grid-cols-1 gap-4 p-4 xl:grid-cols-[460px_minmax(0,1fr)]">
+          <Card className="flex min-h-0 flex-col">
+            <CardHeader className="gap-3">
+              <div>
+                <CardTitle>定时任务管理</CardTitle>
+                <p className="text-muted-foreground mt-1 text-sm">
+                  管理员视图：查看、编辑、删除全部用户的定时任务
+                </p>
+              </div>
+              <form
+                className="flex gap-2"
+                onSubmit={(event) => {
+                  event.preventDefault();
+                  setSearch(searchInput.trim());
+                }}
+              >
+                <Input
+                  value={searchInput}
+                  onChange={(event) => setSearchInput(event.target.value)}
+                  placeholder="按任务名称搜索"
+                />
+                <Button type="submit" variant="outline">
+                  <Search className="size-4" />
+                  搜索
+                </Button>
+              </form>
+            </CardHeader>
+            <CardContent className="min-h-0 flex-1 p-0">
+              <ScrollArea className="size-full">
+                <div className="flex flex-col gap-3 p-4 pt-0">
+                  {isLoading && (
+                    <div className="text-muted-foreground text-sm">
+                      正在加载任务...
+                    </div>
+                  )}
+                  {!isLoading && sortedTasks.length === 0 && (
+                    <div className="text-muted-foreground rounded-md border p-4 text-sm">
+                      没有匹配的定时任务。
+                    </div>
+                  )}
+                  {sortedTasks.map((task) => (
+                    <button
+                      key={task.task_id}
+                      ref={(el) => {
+                        if (el && pendingScrollRef.current === task.task_id) {
+                          pendingScrollRef.current = null;
+                          el.scrollIntoView({ block: "center" });
+                        }
+                      }}
+                      className={cn(
+                        "bg-card text-card-foreground rounded-md border p-4 text-left transition-colors hover:bg-accent/60",
+                        selectedTaskId === task.task_id &&
+                          "border-primary bg-accent",
+                      )}
+                      onClick={() => setSelectedTaskId(task.task_id)}
+                    >
+                      <div className="flex items-start justify-between gap-3">
+                        <div className="min-w-0">
+                          <div className="truncate font-medium">
+                            {task.name}
+                          </div>
+                          <div className="text-muted-foreground mt-1 truncate text-xs">
+                            {task.schedule_text} · {task.timezone}
+                          </div>
+                        </div>
+                        <Badge variant={task.enabled ? "default" : "secondary"}>
+                          {task.enabled ? "启用" : "暂停"}
+                        </Badge>
+                      </div>
+                      <div className="text-muted-foreground mt-3 grid gap-1 text-xs">
+                        <div>
+                          创建者：
+                          {displayUsername(task.creator_email) ||
+                            task.creator_user_id ||
+                            "未知"}
+                        </div>
+                        <div>下次执行：{formatDate(task.next_run_at)}</div>
+                        <div>上次执行：{formatDate(task.last_run_at)}</div>
+                        <div>最近状态：{statusLabel(task.last_status)}</div>
+                      </div>
+                      <div className="mt-3 flex flex-wrap gap-2">
+                        <Button
+                          size="icon"
+                          variant="outline"
+                          title="编辑"
+                          onClick={(event) => {
+                            event.stopPropagation();
+                            openEdit(task);
+                          }}
+                        >
+                          <Edit3 className="size-4" />
+                        </Button>
+                        <Button
+                          size="icon"
+                          variant="outline"
+                          title={task.enabled ? "暂停" : "启用"}
+                          onClick={(event) => {
+                            event.stopPropagation();
+                            void toggleEnabled(task);
+                          }}
+                        >
+                          {task.enabled ? (
+                            <Pause className="size-4" />
+                          ) : (
+                            <Play className="size-4" />
+                          )}
+                        </Button>
+                        <Button
+                          size="icon"
+                          variant="outline"
+                          title="立即执行"
+                          onClick={(event) => {
+                            event.stopPropagation();
+                            void triggerTask(task);
+                          }}
+                        >
+                          <RefreshCw className="size-4" />
+                        </Button>
+                        <Button
+                          size="icon"
+                          variant="destructive"
+                          title="删除"
+                          onClick={(event) => {
+                            event.stopPropagation();
+                            void removeTask(task);
+                          }}
+                        >
+                          <Trash2 className="size-4" />
+                        </Button>
+                      </div>
+                    </button>
+                  ))}
+                </div>
+              </ScrollArea>
+            </CardContent>
+          </Card>
+
+          <Card className="flex min-h-0 flex-col">
+            <CardHeader className="gap-2">
+              <CardTitle>执行记录</CardTitle>
+              <p className="text-muted-foreground text-sm">
+                {selectedTask ? selectedTask.name : "请选择左侧任务"}
+              </p>
+            </CardHeader>
+            <CardContent className="min-h-0 flex-1 p-0">
+              <ScrollArea className="size-full">
+                <div className="flex flex-col gap-3 p-4 pt-0">
+                  {runsLoading && (
+                    <div className="text-muted-foreground text-sm">
+                      正在加载执行记录...
+                    </div>
+                  )}
+                  {!selectedTask && (
+                    <div className="text-muted-foreground rounded-md border p-4 text-sm">
+                      请先选择一个定时任务。
+                    </div>
+                  )}
+                  {!runsLoading && selectedTask && runs.length === 0 && (
+                    <div className="text-muted-foreground rounded-md border p-4 text-sm">
+                      这个任务还没有执行记录。
+                    </div>
+                  )}
+                  {runs.map((run) => (
+                    <div
+                      key={run.id}
+                      className="rounded-md border p-4 transition-colors hover:bg-accent/40"
+                    >
+                      <div className="flex flex-wrap items-start justify-between gap-3">
+                        <div className="min-w-0">
+                          <div className="truncate font-medium">
+                            {run.result?.title || formatDate(run.scheduled_for)}
+                          </div>
+                          <div className="text-muted-foreground mt-1 text-xs">
+                            计划：{formatDate(run.scheduled_for)} · 开始：
+                            {formatDate(run.started_at)}
+                          </div>
+                        </div>
+                        <div className="flex shrink-0 items-center gap-2">
+                          {(run.retry_count ?? 0) > 0 && (
+                            <Badge variant="outline" className="text-xs">
+                              已重试 {run.retry_count}
+                            </Badge>
+                          )}
+                          <Badge variant={statusVariant(run.status)}>
+                            {statusLabel(run.status)}
+                          </Badge>
+                        </div>
+                      </div>
+                      {run.error && (
+                        <div className="text-destructive mt-3 line-clamp-2 text-sm">
+                          {run.error}
+                        </div>
+                      )}
+                      <div className="mt-4 flex flex-wrap gap-2">
+                        <Button
+                          size="sm"
+                          variant="outline"
+                          onClick={() =>
+                            navigate(
+                              `/page/workspace/scheduled/runs/${run.id}?from=admin&task=${encodeURIComponent(run.task_id)}`,
+                            )
+                          }
+                        >
+                          <Eye className="size-4" />
+                          查看结果
+                        </Button>
+                        <Button
+                          size="sm"
+                          variant="outline"
+                          disabled={!run.result}
+                          onClick={() => void downloadRun(run.id)}
+                        >
+                          <Download className="size-4" />
+                          下载结果
+                        </Button>
+                        <Button
+                          size="sm"
+                          variant="destructive"
+                          onClick={() => void deleteRun(run.id)}
+                        >
+                          <Trash2 className="size-4" />
+                          删除
+                        </Button>
+                      </div>
+                    </div>
+                  ))}
+                </div>
+              </ScrollArea>
+            </CardContent>
+          </Card>
+        </div>
+      </WorkspaceBody>
+
+      <Dialog open={!!editing} onOpenChange={(open) => !open && closeDialog()}>
+        <DialogContent className="max-w-2xl">
+          <DialogHeader>
+            <DialogTitle>编辑定时任务</DialogTitle>
+          </DialogHeader>
+          <div className="flex flex-col gap-3">
+            <Input
+              value={form.name}
+              onChange={(event) =>
+                setForm((value) => ({ ...value, name: event.target.value }))
+              }
+              placeholder="任务名称"
+            />
+            <div className="flex flex-col gap-1">
+              <p className="text-muted-foreground text-xs">执行频率</p>
+              <ScheduleBuilder
+                value={scheduleConfig}
+                onChange={setScheduleConfig}
+              />
+            </div>
+            <Input
+              value={form.timezone}
+              onChange={(event) =>
+                setForm((value) => ({
+                  ...value,
+                  timezone: event.target.value,
+                }))
+              }
+              placeholder="时区，例如：Asia/Shanghai"
+            />
+            <Textarea
+              className="min-h-40"
+              value={form.prompt}
+              onChange={(event) =>
+                setForm((value) => ({ ...value, prompt: event.target.value }))
+              }
+              placeholder="任务 Prompt"
+            />
+          </div>
+          <DialogFooter>
+            <Button variant="outline" onClick={closeDialog}>
+              取消
+            </Button>
+            <Button onClick={saveTask}>保存</Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </WorkspaceContainer>
+  );
+}

frontend-web/src/pages/ChatsPage.tsx

@@ -1,10 +1,13 @@
 "use client";
 
+import { DownloadIcon } from "lucide-react";
 import Link from "next/link";
 import { useEffect, useMemo, useState } from "react";
 
+import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { ScrollArea } from "@/components/ui/scroll-area";
+import { ImportConversationsDialog } from "@/components/workspace/thread-share-dialogs";
 import {
   WorkspaceBody,
   WorkspaceContainer,
@@ -20,6 +23,7 @@ export default function ChatsPage() {
   const { t } = useI18n();
   const { data: threads } = useThreads();
   const [search, setSearch] = useState("");
+  const [importOpen, setImportOpen] = useState(false);
 
   useEffect(() => {
     document.title = `${t.pages.chats} - ${t.pages.appName}`;
@@ -38,7 +42,17 @@ export default function ChatsPage() {
       <WorkspaceHeader></WorkspaceHeader>
       <WorkspaceBody>
         <div className="flex size-full flex-col">
-          <header className="flex shrink-0 items-center justify-center pt-8">
+          <header className="flex shrink-0 flex-col items-center gap-3 pt-8">
+            <div className="flex w-full max-w-(--container-width-md) items-center justify-end">
+              <Button
+                variant="outline"
+                size="sm"
+                onClick={() => setImportOpen(true)}
+              >
+                <DownloadIcon className="size-4" />
+                {t.threadShare.importChats}
+              </Button>
+            </div>
             <Input
               type="search"
               className="h-12 w-full max-w-(--container-width-md) text-xl"
@@ -70,6 +84,10 @@ export default function ChatsPage() {
           </main>
         </div>
       </WorkspaceBody>
+      <ImportConversationsDialog
+        open={importOpen}
+        onOpenChange={setImportOpen}
+      />
     </WorkspaceContainer>
   );
 }

frontend-web/src/pages/PublicSharePage.tsx

@@ -0,0 +1,105 @@
+"use client";
+
+import type { BaseStream } from "@langchain/langgraph-sdk/react";
+import { useQuery } from "@tanstack/react-query";
+import { Loader2 } from "lucide-react";
+import { useMemo } from "react";
+import { useParams } from "react-router-dom";
+
+import { ArtifactsProvider } from "@/components/workspace/artifacts";
+import { MessageList } from "@/components/workspace/messages";
+import { ThreadContext } from "@/components/workspace/messages/context";
+import { SubtasksProvider } from "@/core/tasks/context";
+import { getPublicShareSnapshot } from "@/core/thread-shares/api";
+import type { AgentThreadState } from "@/core/threads";
+
+/**
+ * Public, read-only conversation viewer.
+ *
+ * Reachable at `#/share/<code>` with NO authentication — anyone with the link
+ * can open it. It renders a frozen snapshot of a `view`-mode shared
+ * conversation; there is no input box, so viewers cannot send new messages.
+ */
+export default function PublicSharePage() {
+  const { shareCode } = useParams<{ shareCode: string }>();
+
+  const { data, isLoading, isError } = useQuery({
+    queryKey: ["public-share", shareCode],
+    queryFn: () => getPublicShareSnapshot(shareCode!),
+    enabled: !!shareCode,
+    retry: false,
+    refetchOnWindowFocus: false,
+  });
+
+  // A minimal static stand-in for the live LangGraph stream. MessageList only
+  // reads `messages`, `values.artifacts`, `isLoading` and `isThreadLoading`.
+  const thread = useMemo(() => {
+    const messages = data?.messages ?? [];
+    return {
+      messages,
+      values: {
+        title: data?.title ?? "",
+        messages,
+        artifacts: data?.artifacts ?? [],
+        todos: [],
+      },
+      isLoading: false,
+      isThreadLoading: false,
+      error: undefined,
+      interrupt: undefined,
+    } as unknown as BaseStream<AgentThreadState>;
+  }, [data]);
+
+  if (isLoading) {
+    return (
+      <div className="bg-background text-muted-foreground flex h-screen items-center justify-center gap-2 text-sm">
+        <Loader2 className="size-4 animate-spin" />
+        正在加载分享内容…
+      </div>
+    );
+  }
+
+  if (isError || !data) {
+    return (
+      <div className="bg-background flex h-screen flex-col items-center justify-center gap-2 px-6 text-center">
+        <p className="text-lg font-medium">分享不可用</p>
+        <p className="text-muted-foreground text-sm">
+          该分享链接不存在、已被撤销，或不是只读分享。
+        </p>
+      </div>
+    );
+  }
+
+  return (
+    <div className="bg-background flex h-screen flex-col">
+      <header className="flex shrink-0 flex-col gap-1 border-b px-6 py-3">
+        <div className="flex items-center gap-2">
+          <h1 className="truncate text-base font-semibold">
+            {data.title || "未命名对话"}
+          </h1>
+          <span className="bg-muted text-muted-foreground shrink-0 rounded-full px-2 py-0.5 text-xs">
+            只读分享
+          </span>
+        </div>
+        <p className="text-muted-foreground text-xs">
+          这是一个只读对话快照，你可以查看全部内容，但无法继续提问。
+        </p>
+      </header>
+      <main className="min-h-0 flex-1">
+        <SubtasksProvider>
+          <ArtifactsProvider>
+            <ThreadContext.Provider
+              value={{ thread, isMock: true, publicShareCode: shareCode }}
+            >
+              <MessageList
+                threadId={shareCode ?? "public-share"}
+                thread={thread}
+                paddingBottom={48}
+              />
+            </ThreadContext.Provider>
+          </ArtifactsProvider>
+        </SubtasksProvider>
+      </main>
+    </div>
+  );
+}

frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx

@@ -1,8 +1,8 @@
 "use client";
 
 import { useCallback, useEffect, useMemo, useState } from "react";
-import { ChevronDown, Download, Edit3, FileText, ListChecks, Loader2, Save, Trash2, X } from "lucide-react";
+import { Activity, ChevronDown, ChevronLeft, Download, Edit3, FileText, Loader2, Save, Trash2, X } from "lucide-react";
-import { useParams } from "react-router-dom";
+import { useParams, useSearchParams } from "react-router-dom";
 import { useRouteNavigate as useNavigate } from "@/core/route-base";
 import { toast } from "sonner";
 
@@ -24,9 +24,11 @@ import {
   getScheduledTaskRunFileContent,
   type ScheduledTaskResultFileContent,
   type ScheduledTaskRun,
+  type ScheduledTaskRunMessage,
   updateScheduledTaskRunFile,
   useScheduledTaskActions,
   useScheduledTaskRun,
+  useScheduledTaskRunMessages,
 } from "@/core/scheduled-tasks";
 import { downloadMarkdownAsDocx } from "@/core/scheduled-tasks/markdown-docx";
 import { cn } from "@/lib/utils";
@@ -97,12 +99,117 @@ function RenderPreview({ file }: { file: ScheduledTaskResultFileContent }) {
 
 type EditState = { draft: string; saving: boolean };
 
+/** Flatten a LangChain-style message content (string | parts | nested) to text. */
+function messageText(content: unknown): string {
+  if (content == null) return "";
+  if (typeof content === "string") return content;
+  if (Array.isArray(content)) {
+    return content
+      .map((part) => {
+        if (typeof part === "string") return part;
+        if (part && typeof part === "object" && "text" in part) {
+          return String((part as { text?: unknown }).text ?? "");
+        }
+        return "";
+      })
+      .filter(Boolean)
+      .join("\n");
+  }
+  if (typeof content === "object" && "content" in content) {
+    return messageText((content as { content?: unknown }).content);
+  }
+  return JSON.stringify(content, null, 2);
+}
+
+const EXECUTION_ROLE: Record<string, { label: string; tone: string }> = {
+  "llm.human.input": { label: "触发输入", tone: "bg-muted text-foreground" },
+  "llm.ai.response": { label: "智能体", tone: "bg-primary/10 text-primary" },
+  "llm.tool.result": { label: "工具结果", tone: "bg-amber-500/10 text-amber-600 dark:text-amber-400" },
+};
+
+/** One agent message rendered inside the execution-process tab. */
+function ExecutionMessage({ message }: { message: ScheduledTaskRunMessage }) {
+  const role = EXECUTION_ROLE[message.event_type] ?? {
+    label: message.event_type,
+    tone: "bg-muted text-foreground",
+  };
+  const raw = message.content;
+  const obj = raw && typeof raw === "object" ? (raw as Record<string, unknown>) : null;
+  const text = messageText(raw);
+  const toolName = typeof obj?.name === "string" ? obj.name : null;
+  const toolCalls = Array.isArray(obj?.tool_calls)
+    ? (obj!.tool_calls as Array<Record<string, unknown>>)
+    : [];
+  const isAi = message.event_type === "llm.ai.response";
+
+  return (
+    <div className="rounded-md border">
+      <div className="flex items-center gap-2 border-b px-3 py-1.5">
+        <span className={cn("rounded px-1.5 py-0.5 text-xs font-medium", role.tone)}>
+          {role.label}
+          {toolName ? ` · ${toolName}` : ""}
+        </span>
+        {message.created_at && (
+          <span className="text-muted-foreground text-xs">
+            {new Date(message.created_at).toLocaleString()}
+          </span>
+        )}
+      </div>
+      <div className="p-3">
+        {text ? (
+          isAi ? (
+            <MarkdownContent className="max-w-none" content={text} isLoading={false} rehypePlugins={[]} />
+          ) : (
+            <pre className="whitespace-pre-wrap break-words text-xs">{text}</pre>
+          )
+        ) : (
+          !toolCalls.length && <div className="text-muted-foreground text-xs">（无文本内容）</div>
+        )}
+        {toolCalls.length > 0 && (
+          <div className="mt-2 flex flex-col gap-1">
+            {toolCalls.map((call, index) => (
+              <div key={index} className="bg-muted rounded px-2 py-1 text-xs">
+                <span className="font-medium">调用工具：{String(call.name ?? "未知")}</span>
+                {call.args != null && (
+                  <pre className="mt-1 whitespace-pre-wrap break-words">
+                    {typeof call.args === "string" ? call.args : JSON.stringify(call.args, null, 2)}
+                  </pre>
+                )}
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
+
 export default function ScheduledTaskRunDetailPage() {
   const navigate = useNavigate();
   const { run_id } = useParams();
+  const [searchParams] = useSearchParams();
   const actions = useScheduledTaskActions();
   const { data: run, isLoading } = useScheduledTaskRun(run_id);
   const result = run?.result ?? null;
+  // A run still executing — drives live polling of its agent messages.
+  const runLive = run?.status === "running" || run?.status === "pending";
+  const hasExecution = !!run?.agent_run_id;
+  const { data: messagesData, isLoading: messagesLoading } = useScheduledTaskRunMessages(
+    hasExecution ? run_id : null,
+    { live: runLive },
+  );
+  const runMessages = messagesData?.messages ?? [];
+
+  // Back navigation returns to the originating list (admin vs. mine) and
+  // re-selects the task the user came from (carried in ?task=).
+  const handleBack = useCallback(() => {
+    const base =
+      searchParams.get("from") === "admin"
+        ? "/page/workspace/admin/scheduled-tasks"
+        : "/page/workspace/scheduled/tasks";
+    const taskId = run?.task_id ?? searchParams.get("task");
+    navigate(taskId ? `${base}?task=${encodeURIComponent(taskId)}` : base);
+  }, [navigate, run?.task_id, searchParams]);
   const [fileContents, setFileContents] = useState<ScheduledTaskResultFileContent[]>([]);
   const [filesLoading, setFilesLoading] = useState(false);
   const [showMeta, setShowMeta] = useState(false);
@@ -257,7 +364,7 @@ export default function ScheduledTaskRunDetailPage() {
     try {
       await actions.removeRun.mutateAsync(run.id);
       toast.success("执行记录已删除");
-      navigate("/page/workspace/scheduled/tasks");
+      handleBack();
     } catch (error) {
       toast.error(error instanceof Error ? error.message : "删除失败");
     }
@@ -281,9 +388,9 @@ export default function ScheduledTaskRunDetailPage() {
               <ChevronDown className={cn("size-3 transition-transform", showMeta && "rotate-180")} />
               执行信息
             </Button>
-            <Button variant="ghost" size="sm" className="h-7 px-2 text-xs" onClick={() => navigate("/page/workspace/scheduled/tasks")}>
+            <Button variant="ghost" size="sm" className="h-7 px-2 text-xs" onClick={handleBack}>
-              <ListChecks className="size-3" />
+              <ChevronLeft className="size-3" />
-              返回记录
+              返回
             </Button>
             <Button variant="ghost" size="sm" className="h-7 px-2 text-xs" onClick={handleDownloadResult} disabled={!result}>
               <Download className="size-3" />
@@ -330,28 +437,45 @@ export default function ScheduledTaskRunDetailPage() {
             </div>
           )}
           {/* 内容区 */}
-          {!result && run && (
+          {run && !result && !hasExecution && (
             <div className="text-muted-foreground p-4 text-sm">
               这条记录暂时还没有结果，任务可能仍在执行中。
             </div>
           )}
-          {result && (
+          {run && (result || hasExecution) && (
-            <Tabs defaultValue={fileCount > 0 ? "files" : "body"} className="flex min-h-0 flex-1 flex-col">
+            <Tabs
+              defaultValue={result ? (fileCount > 0 ? "files" : "body") : "execution"}
+              className="flex min-h-0 flex-1 flex-col"
+            >
               <div className="border-b px-3 pt-1">
                 <TabsList className="h-8">
-                  <TabsTrigger value="body" className="text-xs">
+                  {result && (
-                    <FileText className="mr-1 size-3" />
+                    <TabsTrigger value="body" className="text-xs">
-                    正文
+                      <FileText className="mr-1 size-3" />
-                  </TabsTrigger>
+                      正文
-                  <TabsTrigger value="files" className="text-xs">
+                    </TabsTrigger>
-                    结果文件{fileCount > 0 && `（${fileCount}）`}
+                  )}
-                  </TabsTrigger>
+                  {result && (
-                  <TabsTrigger value="meta" className="text-xs">
+                    <TabsTrigger value="files" className="text-xs">
-                    元数据
+                      结果文件{fileCount > 0 && `（${fileCount}）`}
-                  </TabsTrigger>
+                    </TabsTrigger>
+                  )}
+                  {hasExecution && (
+                    <TabsTrigger value="execution" className="text-xs">
+                      <Activity className="mr-1 size-3" />
+                      执行过程{runMessages.length > 0 && `（${runMessages.length}）`}
+                    </TabsTrigger>
+                  )}
+                  {result && (
+                    <TabsTrigger value="meta" className="text-xs">
+                      元数据
+                    </TabsTrigger>
+                  )}
                 </TabsList>
               </div>
               <ScrollArea className="min-h-0 flex-1">
+                {result && (
+                  <>
                 <TabsContent value="body" className="m-0 p-4">
                   {result.format === "markdown" || result.format === "mixed" ? (
                     <MarkdownContent
@@ -471,6 +595,31 @@ export default function ScheduledTaskRunDetailPage() {
                     {resultMetadata}
                   </pre>
                 </TabsContent>
+                  </>
+                )}
+                {hasExecution && (
+                  <TabsContent value="execution" className="m-0 p-3">
+                    {runLive && (
+                      <div className="text-primary border-primary/30 bg-primary/5 mb-3 flex items-center gap-2 rounded-md border p-2 text-xs">
+                        <Loader2 className="size-3 animate-spin" />
+                        任务执行中，下方消息每 4 秒自动刷新…
+                      </div>
+                    )}
+                    {messagesLoading && runMessages.length === 0 && (
+                      <div className="text-muted-foreground text-sm">正在加载执行消息...</div>
+                    )}
+                    {!messagesLoading && runMessages.length === 0 && (
+                      <div className="text-muted-foreground rounded-md border p-3 text-sm">
+                        暂无执行消息，任务可能还未开始执行。
+                      </div>
+                    )}
+                    <div className="flex flex-col gap-3">
+                      {runMessages.map((message) => (
+                        <ExecutionMessage key={message.seq} message={message} />
+                      ))}
+                    </div>
+                  </TabsContent>
+                )}
               </ScrollArea>
             </Tabs>
           )}

frontend-web/src/pages/ScheduledTasksPage.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useEffect, useMemo, useState } from "react";
+import { useEffect, useMemo, useRef, useState } from "react";
 import {
   BellOff,
   BellRing,
@@ -18,6 +18,7 @@ import {
   TagsIcon,
   Trash2,
 } from "lucide-react";
+import { useSearchParams } from "react-router-dom";
 import { useRouteNavigate as useNavigate } from "@/core/route-base";
 import { toast } from "sonner";
 
@@ -51,199 +52,17 @@ import {
   useScheduledTasks,
   usePublishedScheduledTasks,
 } from "@/core/scheduled-tasks";
+import {
+  buildCron,
+  DEFAULT_SCHEDULE_CONFIG,
+  parseCron,
+  ScheduleBuilder,
+  type ScheduleConfig,
+  statusLabel,
+  statusVariant,
+} from "@/components/workspace/scheduled-tasks/schedule-builder";
 import { cn } from "@/lib/utils";
 
-// ---- 时间配置 ----
-type ScheduleFreq = "hourly" | "daily" | "weekly" | "monthly";
-
-interface ScheduleConfig {
-  freq: ScheduleFreq;
-  minute: number;
-  hour: number;
-  weekday: number;
-  date: number;
-}
-
-const DEFAULT_SCHEDULE_CONFIG: ScheduleConfig = {
-  freq: "daily",
-  minute: 0,
-  hour: 9,
-  weekday: 1,
-  date: 1,
-};
-
-const WEEKDAYS = ["周日", "周一", "周二", "周三", "周四", "周五", "周六"];
-const HOURS = Array.from({ length: 24 }, (_, i) => i);
-const MINUTES = [0, 15, 30, 45];
-const DATES = Array.from({ length: 31 }, (_, i) => i + 1);
-
-function buildCron(cfg: ScheduleConfig): string {
-  // Keep the minute slot when the user picked one for daily/weekly/monthly too,
-  // so "每天 9:30" doesn't silently truncate to 9:00 on save → reload round trips.
-  const m = Number.isFinite(cfg.minute) ? cfg.minute : 0;
-  switch (cfg.freq) {
-    case "hourly":
-      return `${m} * * * *`;
-    case "daily":
-      return `${m} ${cfg.hour} * * *`;
-    case "weekly":
-      return `${m} ${cfg.hour} * * ${cfg.weekday}`;
-    case "monthly":
-      return `${m} ${cfg.hour} ${cfg.date} * *`;
-  }
-}
-
-// Parse a 5-field cron expression into the form picker state.
-//
-// Bug we keep getting bitten by: the edit dialog used to call
-// `parseCron(task.schedule_text)` and `schedule_text` may be the raw user
-// input (free-text like "每天 9 点") rather than a real cron string. The
-// fallback `DEFAULT_SCHEDULE_CONFIG` then made the picker silently
-// reinterpret the task as "every day at 09:00" — or, when natural-language
-// resolved to "0 * * * *" on the backend, the picker honestly reflected
-// that as "每小时 0 分". Either way the user lost their original intent.
-//
-// Caller now prefers `task.cron_expr` (the canonical schedule produced by
-// `_schedule_to_cron`); this function stays the single source of truth for
-// cron → picker, and also handles the looser step-syntax variants
-// (e.g. "0 [STAR]/3 * * *") we sometimes generate.
-function parseCron(cron: string | null | undefined): ScheduleConfig | null {
-  if (!cron) return null;
-  const parts = cron.trim().split(/\s+/);
-  if (parts.length !== 5) return null;
-  const [min, hr, date, , wd] = parts;
-  const minute = parseInt(min ?? "", 10);
-  const hour = parseInt(hr ?? "", 10);
-
-  // Hourly: ``M * * * *`` — match before the daily branch so a minute-only
-  // cron isn't misread as daily.
-  if (hr === "*" && date === "*" && wd === "*") {
-    if (!isNaN(minute)) {
-      return { ...DEFAULT_SCHEDULE_CONFIG, freq: "hourly", minute };
-    }
-  }
-  // ``0 */N * * *`` (every N hours): map to hourly with that minute; the
-  // picker doesn't model "every N hours" yet, so this is the safest fallback
-  // that at least doesn't silently round to 9:00.
-  if ((hr ?? "").startsWith("*/") && date === "*" && wd === "*") {
-    if (!isNaN(minute)) {
-      return { ...DEFAULT_SCHEDULE_CONFIG, freq: "hourly", minute };
-    }
-  }
-  if (date === "*" && wd === "*") {
-    if (!isNaN(hour)) {
-      return {
-        ...DEFAULT_SCHEDULE_CONFIG,
-        freq: "daily",
-        hour,
-        minute: isNaN(minute) ? 0 : minute,
-      };
-    }
-  }
-  if (date === "*" && wd !== "*") {
-    const weekday = parseInt(wd ?? "", 10);
-    if (!isNaN(hour) && !isNaN(weekday)) {
-      return {
-        ...DEFAULT_SCHEDULE_CONFIG,
-        freq: "weekly",
-        hour,
-        weekday,
-        minute: isNaN(minute) ? 0 : minute,
-      };
-    }
-  }
-  if (wd === "*" && date !== "*") {
-    const d = parseInt(date ?? "", 10);
-    if (!isNaN(hour) && !isNaN(d)) {
-      return {
-        ...DEFAULT_SCHEDULE_CONFIG,
-        freq: "monthly",
-        hour,
-        date: d,
-        minute: isNaN(minute) ? 0 : minute,
-      };
-    }
-  }
-  return null;
-}
-
-function ScheduleBuilder({
-  value,
-  onChange,
-}: {
-  value: ScheduleConfig;
-  onChange: (cfg: ScheduleConfig) => void;
-}) {
-  const set = (patch: Partial<ScheduleConfig>) => onChange({ ...value, ...patch });
-  return (
-    <div className="flex flex-wrap gap-2">
-      <Select value={value.freq} onValueChange={(v) => set({ freq: v as ScheduleFreq })}>
-        <SelectTrigger className="w-28">
-          <SelectValue />
-        </SelectTrigger>
-        <SelectContent>
-          <SelectItem value="hourly">每小时</SelectItem>
-          <SelectItem value="daily">每天</SelectItem>
-          <SelectItem value="weekly">每周</SelectItem>
-          <SelectItem value="monthly">每月</SelectItem>
-        </SelectContent>
-      </Select>
-
-      {value.freq === "hourly" && (
-        <Select value={String(value.minute)} onValueChange={(v) => set({ minute: parseInt(v) })}>
-          <SelectTrigger className="w-24">
-            <SelectValue />
-          </SelectTrigger>
-          <SelectContent>
-            {MINUTES.map((m) => (
-              <SelectItem key={m} value={String(m)}>{m} 分</SelectItem>
-            ))}
-          </SelectContent>
-        </Select>
-      )}
-
-      {value.freq === "weekly" && (
-        <Select value={String(value.weekday)} onValueChange={(v) => set({ weekday: parseInt(v) })}>
-          <SelectTrigger className="w-24">
-            <SelectValue />
-          </SelectTrigger>
-          <SelectContent>
-            {WEEKDAYS.map((d, i) => (
-              <SelectItem key={i} value={String(i)}>{d}</SelectItem>
-            ))}
-          </SelectContent>
-        </Select>
-      )}
-
-      {value.freq === "monthly" && (
-        <Select value={String(value.date)} onValueChange={(v) => set({ date: parseInt(v) })}>
-          <SelectTrigger className="w-24">
-            <SelectValue />
-          </SelectTrigger>
-          <SelectContent>
-            {DATES.map((d) => (
-              <SelectItem key={d} value={String(d)}>第 {d} 日</SelectItem>
-            ))}
-          </SelectContent>
-        </Select>
-      )}
-
-      {value.freq !== "hourly" && (
-        <Select value={String(value.hour)} onValueChange={(v) => set({ hour: parseInt(v) })}>
-          <SelectTrigger className="w-24">
-            <SelectValue />
-          </SelectTrigger>
-          <SelectContent>
-            {HOURS.map((h) => (
-              <SelectItem key={h} value={String(h)}>{h} 时</SelectItem>
-            ))}
-          </SelectContent>
-        </Select>
-      )}
-    </div>
-  );
-}
-
 function formatDate(value?: string | null) {
   return value ? new Date(value).toLocaleString() : "暂无";
 }
@@ -256,28 +75,6 @@ function displayUsername(value?: string | null): string {
   return at === -1 ? raw : raw.slice(0, at);
 }
 
-function statusLabel(status?: string | null) {
-  switch (status) {
-    case "succeeded":
-      return "成功";
-    case "failed":
-      return "失败";
-    case "running":
-      return "执行中";
-    case "pending":
-      return "等待中";
-    default:
-      return status || "未知";
-  }
-}
-
-function statusVariant(status?: string | null): "default" | "secondary" | "destructive" | "outline" {
-  if (status === "succeeded") return "default";
-  if (status === "failed") return "destructive";
-  if (status === "running") return "secondary";
-  return "outline";
-}
-
 const emptyForm = {
   name: "",
   schedule: "",
@@ -288,6 +85,10 @@ const emptyForm = {
 
 export default function ScheduledTasksPage() {
   const navigate = useNavigate();
+  const [searchParams] = useSearchParams();
+  // When returning from a run-detail page the task id is carried in ?task=,
+  // so the list re-selects (and scrolls to) the task the user was viewing.
+  const initialTaskId = searchParams.get("task");
   const [search, setSearch] = useState("");
   const [tagId, setTagId] = useState<string | null>(null);
   // Name + tag filtering is resolved server-side via the /api/scheduled-tasks query.
@@ -298,7 +99,9 @@ export default function ScheduledTasksPage() {
   const [activeTab, setActiveTab] = useState<"mine" | "plaza">("mine");
   const { data: published = [], isLoading: publishedLoading } =
     usePublishedScheduledTasks(activeTab === "plaza");
-  const [selectedTaskId, setSelectedTaskId] = useState<string | null>(null);
+  const [selectedTaskId, setSelectedTaskId] = useState<string | null>(initialTaskId);
+  // One-shot scroll target: scroll the task into view after a back-navigation.
+  const pendingScrollRef = useRef<string | null>(initialTaskId);
   const [elementUserId, setElementUserId] = useState("");
   const [editing, setEditing] = useState<ScheduledTask | null>(null);
   const [creating, setCreating] = useState(false);
@@ -504,6 +307,12 @@ export default function ScheduledTasksPage() {
                       return (
                         <button
                           key={task.task_id}
+                          ref={(el) => {
+                            if (el && pendingScrollRef.current === task.task_id) {
+                              pendingScrollRef.current = null;
+                              el.scrollIntoView({ block: "center" });
+                            }
+                          }}
                           className={cn(
                             "bg-card text-card-foreground rounded-md border p-4 text-left transition-colors hover:bg-accent/60",
                             selectedTaskId === task.task_id && "border-primary bg-accent",
@@ -802,7 +611,11 @@ export default function ScheduledTasksPage() {
                         <Button
                           size="sm"
                           variant="outline"
-                          onClick={() => navigate(`/page/workspace/scheduled/runs/${run.id}`)}
+                          onClick={() =>
+                            navigate(
+                              `/page/workspace/scheduled/runs/${run.id}?from=mine&task=${encodeURIComponent(run.task_id)}`,
+                            )
+                          }
                         >
                           <Eye className="size-4" />
                           查看结果

frontend-web/src/pages/WorkspaceRoutes.tsx

@@ -18,6 +18,7 @@ import ChatPage from "./ChatPage";
 import AgentsPage from "./AgentsPage";
 import AgentChatPage from "./AgentChatPage";
 import NewAgentPage from "./NewAgentPage";
+import AdminScheduledTasksPage from "./AdminScheduledTasksPage";
 import ScheduledTaskRunDetailPage from "./ScheduledTaskRunDetailPage";
 import ScheduledTasksPage from "./ScheduledTasksPage";
 import LlmMetricsPage from "./LlmMetricsPage";
@@ -184,6 +185,18 @@ export default function WorkspaceRoutes({
           </WorkspaceLayout>
         }
       />
+      <Route
+        path="admin/scheduled-tasks"
+        element={
+          getStoredAuth()?.system_role === "admin" ? (
+            <WorkspaceLayout {...layoutProps}>
+              <AdminScheduledTasksPage />
+            </WorkspaceLayout>
+          ) : (
+            <Navigate to="/page/workspace/chats/new" replace />
+          )
+        }
+      />
       <Route
         path="admin/tags"
         element={

frontend-web/vite.config.ts

@@ -2,13 +2,12 @@ import path from "node:path";
 import { fileURLToPath } from "node:url";
 
 import react from "@vitejs/plugin-react";
-import sourceIdentifierPlugin from "vite-plugin-source-identifier";
 import { defineConfig } from "vite";
 
 const rootDir = fileURLToPath(new URL(".", import.meta.url));
 
 export default defineConfig({
-  plugins: [react(), sourceIdentifierPlugin()],
+  plugins: [react()],
   resolve: {
     alias: [
       {

offline-backend-20260512/.env

@@ -0,0 +1,61 @@
+# ========================
+# EDIT BEFORE DEPLOYMENT
+# ========================
+# This file is loaded by start_backend.scheduler.sh through docker --env-file.
+# Put server-specific values here. Do not configure Python mirrors only on the
+# host shell; values in this file are what the container will receive.
+
+# AI provider keys. Replace placeholders and rotate any test key before release.
+DEEPSEEK_API_KEY=sk-cea9133f82e24e9f939136746b05d5f8
+OPENAI_API_KEY=your-openai-api-key
+ANTHROPIC_API_KEY=your-anthropic-api-key
+
+TAVILY_API_KEY=your-tavily-api-key
+SERPER_API_KEY=your-serper-api-key
+
+# Auth and frontend access.
+# AUTH_JWT_SECRET must stay stable across restarts, or existing logins expire.
+# GATEWAY_CORS_ORIGINS must include the exact frontend origins, separated by commas.
+AUTH_JWT_SECRET=i3_BiBK44sYHiFIkChhDs46y57ZewJKO3diQDw01anI
+GATEWAY_CORS_ORIGINS=http://localhost:5173,http://127.0.0.1:5173
+GATEWAY_CORS_ALLOW_ALL=0
+GATEWAY_ENABLE_DOCS=true
+GATEWAY_WORKERS=2
+DEER_FLOW_AUTH_DISABLED=false
+AUTH_TRUSTED_PROXIES=
+
+# Scheduler dependency behavior.
+# Keep SCHEDULER_INSTALL_DEPS=1 if croniter is not already baked into the image.
+# Set the Python mirror below if the server cannot access public PyPI.
+SCHEDULER_INSTALL_DEPS=1
+SCHEDULER_PIP_PACKAGES=croniter==6.2.2
+SCHEDULED_TASKS_ENABLED=true
+
+# Element / Matrix delivery for scheduled task results.
+# If disabled or not configured, scheduled tasks still run but no Element DM is sent.
+ELEMENT_ENABLED=false
+ELEMENT_HOMESERVER_URL=
+ELEMENT_ACCESS_TOKEN=
+ELEMENT_BOT_USERNAME=scheduled-bot
+ELEMENT_BOT_PASSWORD=
+ELEMENT_AUTO_REGISTER=false
+ELEMENT_STATE_FILE=/app/backend/.deer-flow/element-bot-token
+
+# Python private package index used by uv/pip inside the backend container and
+# propagated into sandbox containers for agent-installed dependencies.
+# Uncomment and set these to your internal mirror when public PyPI is blocked.
+# UV_INDEX_URL=http://your-python-mirror/simple
+# PIP_INDEX_URL=http://your-python-mirror/simple
+# UV_TRUSTED_HOST=your-python-mirror
+# PIP_TRUSTED_HOST=your-python-mirror
+# PIP_EXTRA_INDEX_URL=
+# UV_EXTRA_INDEX_URL=
+# HTTP_PROXY=
+# HTTPS_PROXY=
+# NO_PROXY=
+
+# Alternative generic names also supported by the startup script.
+# PYTHON_PACKAGE_INDEX_URL=http://your-python-mirror/simple
+# PYTHON_EXTRA_INDEX_URL=
+# PYTHON_TRUSTED_HOST=your-python-mirror
+MYSQL_DATABASE_URL=mysql+asyncmy://kland:kland%4088124932@192.168.0.123:3306/deerflow?charset=utf8mb4

offline-backend-20260512/MYSQL_SWITCH_RELEASE_NOTES_LINUX_DOCKER_ZH.md

@@ -0,0 +1,255 @@
+# Linux Docker 版：业务库切换 MySQL 发版说明
+
+适用场景：Linux 服务器上使用 `offline-backend-20260512/start_backend.sh` 启动 Docker 后端。
+
+原启动脚本保持不变：
+
+```bash
+bash start_backend.sh
+```
+
+单独新增切换脚本：
+
+```bash
+bash switch_database_to_mysql.sh
+```
+
+## 一、切换后的数据布局
+
+迁移到 MySQL 的业务表：
+
+```text
+users
+threads_meta
+runs
+run_events
+feedback
+agents
+skills
+scheduled_tasks
+scheduled_task_runs
+scheduled_task_subscriptions
+scheduled_task_delivery_profiles
+scheduler_threads
+llm_call_metrics
+notifications
+recommended_questions
+tags
+tag_assignments
+thread_shares
+```
+
+继续留在 SQLite：
+
+```text
+checkpoints
+writes
+```
+
+SQLite 路径：
+
+```text
+宿主机: offline-backend-20260512/data/data/deerflow.db
+容器内: /app/backend/.deer-flow/data/deerflow.db
+```
+
+## 二、前置条件
+
+MySQL 建议提前建库：
+
+```sql
+CREATE DATABASE deerflow
+  CHARACTER SET utf8mb4
+  COLLATE utf8mb4_unicode_ci;
+```
+
+本次 Linux 内网库连接信息按以下方式配置：
+
+```bash
+MYSQL_DATABASE_URL='mysql+asyncmy://root:1qaz%40WSX@172.16.4.xxx:3306/deerflow?charset=utf8mb4'
+```
+
+注意：密码里的 `@` 在 URL 中必须写成 `%40`，所以 `1qaz@WSX` 要写成 `1qaz%40WSX`。
+
+离线包 `wheelhouse` 中需要有：
+
+```text
+asyncmy-0.2.10-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
+```
+
+当前包已经放入该 wheel。
+
+如果使用内网 pip 私服，在 `.env` 中配置：
+
+```env
+PIP_INDEX_URL=http://your-pip-mirror/simple
+PIP_TRUSTED_HOST=your-pip-mirror
+UV_INDEX_URL=http://your-pip-mirror/simple
+UV_TRUSTED_HOST=your-pip-mirror
+```
+
+这些变量会传给后端容器和 AIO 沙箱容器。
+
+## 三、发版步骤
+
+进入部署目录：
+
+```bash
+cd offline-backend-20260512
+```
+
+先启动一次后端，让 SQLite schema 自动升级到当前代码版本：
+
+```bash
+bash start_backend.sh
+```
+
+确认服务正常后停止：
+
+```bash
+bash stop_backend.sh
+```
+
+执行一键切换：
+
+```bash
+MYSQL_DATABASE_URL='mysql+asyncmy://root:1qaz%40WSX@172.16.4.xxx:3306/deerflow?charset=utf8mb4' \
+bash switch_database_to_mysql.sh
+```
+
+如果数据库 `deerflow` 已经由 DBA 提前建好，或者当前账号不能访问 MySQL 系统库 `mysql`，可以跳过自动建库：
+
+```bash
+CREATE_DATABASE=0 \
+MYSQL_DATABASE_URL='mysql+asyncmy://root:1qaz%40WSX@172.16.4.xxx:3306/deerflow?charset=utf8mb4' \
+bash switch_database_to_mysql.sh
+```
+
+如果目标 MySQL 表已有旧数据，并确认要清空后重迁：
+
+```bash
+TRUNCATE_TARGET=1 \
+MYSQL_DATABASE_URL='mysql+asyncmy://root:1qaz%40WSX@172.16.4.xxx:3306/deerflow?charset=utf8mb4' \
+bash switch_database_to_mysql.sh
+```
+
+切换完成后，继续用原启动脚本：
+
+```bash
+bash start_backend.sh
+```
+
+## 四、脚本会自动做什么
+
+`switch_database_to_mysql.sh` 会自动：
+
+1. 检查 Docker 是否可用。
+2. 检查后端容器是否已停止。
+3. 备份：
+
+```text
+data/backups/mysql-switch-YYYYMMDD_HHMMSS/config.yaml.bak
+data/backups/mysql-switch-YYYYMMDD_HHMMSS/env.bak
+data/backups/mysql-switch-YYYYMMDD_HHMMSS/deerflow.db.bak
+```
+
+4. 启动一次临时迁移容器。
+5. 从 `/app/wheelhouse` 安装 `asyncmy` 到持久目录：
+
+```text
+容器内: /app/backend/.deer-flow/python-vendor
+宿主机: offline-backend-20260512/data/python-vendor
+```
+
+6. 创建/升级 MySQL schema。
+7. 默认清理失败重跑留下的空表：
+
+```text
+DROP_EMPTY_TARGET_SCHEMA=1
+```
+
+该清理只会删除已知业务表中“全部为空”的半成品表；如果任意表已有数据，脚本不会删除，会继续交给迁移校验保护。
+
+8. 从 SQLite 迁移业务表到 MySQL。
+9. 校验每张业务表行数。
+10. 修改 `config.yaml`：
+
+```yaml
+database:
+  backend: mysql
+  mysql_url: $MYSQL_DATABASE_URL
+  pool_size: 10
+  echo_sql: false
+
+checkpointer:
+  type: sqlite
+  connection_string: /app/backend/.deer-flow/data/deerflow.db
+```
+
+11. 将 `MYSQL_DATABASE_URL` 写入 `.env`。
+
+## 五、验证
+
+健康检查：
+
+```bash
+curl http://<server-ip>:8001/health
+```
+
+功能验证：
+
+```text
+登录/退出
+历史会话列表
+打开旧会话
+新建对话
+定时任务
+分享链接
+后端日志无 MySQL driver 或连接错误
+```
+
+## 六、回滚
+
+停止后端：
+
+```bash
+bash stop_backend.sh
+```
+
+恢复备份：
+
+```bash
+cp data/backups/mysql-switch-YYYYMMDD_HHMMSS/config.yaml.bak config.yaml
+cp data/backups/mysql-switch-YYYYMMDD_HHMMSS/env.bak .env
+cp data/backups/mysql-switch-YYYYMMDD_HHMMSS/deerflow.db.bak data/data/deerflow.db
+```
+
+重新启动：
+
+```bash
+bash start_backend.sh
+```
+
+## 七、注意事项
+
+- `MYSQL_DATABASE_URL` 不要写 `127.0.0.1` 指向宿主机 MySQL。容器内的 `127.0.0.1` 是容器自己。
+- 如果 MySQL 在宿主机，使用宿主机内网 IP 或 Docker 可访问主机名。
+- 当前 Linux 内网 MySQL 示例使用 `172.16.4.xxx:3306`。
+- 密码含 `@`、`#`、`?`、`/` 等 URL 特殊字符时必须 URL 编码；本次 `1qaz@WSX` 写成 `1qaz%40WSX`。
+- 已同步 Windows 实测问题修复：
+
+```text
+老 MySQL 767 bytes 索引长度限制：已收短被索引/唯一约束覆盖的字符串列。
+老 MySQL 不支持 JSON 类型：MySQL 下 JSON 字段自动使用 TEXT 存储，应用层仍读写 dict/list。
+失败重跑的半成品空表：switch_database_to_mysql.sh 默认传入 --drop-empty-target-schema 自动清理。
+```
+
+- `data/data/deerflow.db` 不能删除，因为 `checkpoints/writes` 仍在里面。
+- 后续归档文件建议放：
+
+```text
+容器内: /app/backend/.deer-flow/archives/conversations
+宿主机: offline-backend-20260512/data/archives/conversations
+```
+
+该路径已在现有 Docker 持久卷内，不需要改启动脚本。

offline-backend-20260512/MYSQL_SWITCH_RELEASE_NOTES_WINDOWS_LOCAL_ZH.md

@@ -0,0 +1,230 @@
+# Windows 本地版：业务库切换 MySQL 发版说明
+
+适用场景：Windows 机器上直接在 `offline-backend-20260512/backend` 目录本地启动后端，不使用 Docker。
+
+原本地启动方式保持不变：
+
+```powershell
+cd offline-backend-20260512\backend
+$env:PYTHONPATH='.'
+uv run uvicorn app.gateway.app:app --host 0.0.0.0 --port 8001
+```
+
+单独新增切换脚本：
+
+```powershell
+cd offline-backend-20260512
+.\switch_database_to_mysql.ps1
+```
+
+## 一、切换后的数据布局
+
+迁移到 MySQL 的业务表：
+
+```text
+users
+threads_meta
+runs
+run_events
+feedback
+agents
+skills
+scheduled_tasks
+scheduled_task_runs
+scheduled_task_subscriptions
+scheduled_task_delivery_profiles
+scheduler_threads
+llm_call_metrics
+notifications
+recommended_questions
+tags
+tag_assignments
+thread_shares
+```
+
+继续留在 SQLite：
+
+```text
+checkpoints
+writes
+```
+
+Windows 本地默认 SQLite 路径：
+
+```text
+offline-backend-20260512\backend\.deer-flow\data\deerflow.db
+```
+
+如果你的本地 `DEER_FLOW_HOME` 或 SQLite 路径不是默认值，执行切换脚本时用 `-SqliteDb` 指定真实文件。
+
+## 二、前置条件
+
+本机需要：
+
+```text
+Python 3.12+
+uv
+Windows 能访问的 MySQL
+```
+
+MySQL 建议提前建库：
+
+```sql
+CREATE DATABASE deerflow
+  CHARACTER SET utf8mb4
+  COLLATE utf8mb4_unicode_ci;
+```
+
+如果 MySQL 就在 Windows 本机，连接串可以使用 `127.0.0.1`：
+
+```text
+mysql+asyncmy://user:password@127.0.0.1:3306/deerflow?charset=utf8mb4
+```
+
+切换脚本会在本地 `backend` 的 uv 环境中安装：
+
+```text
+asyncmy==0.2.10
+```
+
+如果本机不能访问公网 pip，请先在当前 PowerShell 配置内网 pip 私服：
+
+```powershell
+$env:PIP_INDEX_URL='http://your-pip-mirror/simple'
+$env:PIP_TRUSTED_HOST='your-pip-mirror'
+$env:UV_INDEX_URL='http://your-pip-mirror/simple'
+$env:UV_TRUSTED_HOST='your-pip-mirror'
+```
+
+## 三、发版步骤
+
+先启动一次后端，让 SQLite schema 自动升级到当前代码版本：
+
+```powershell
+cd offline-backend-20260512\backend
+$env:PYTHONPATH='.'
+uv run uvicorn app.gateway.app:app --host 0.0.0.0 --port 8001
+```
+
+确认服务正常后按 `Ctrl + C` 停止后端。
+
+回到发版目录，执行一键切换：
+
+```powershell
+cd offline-backend-20260512
+$env:MYSQL_DATABASE_URL='mysql+asyncmy://user:password@127.0.0.1:3306/deerflow?charset=utf8mb4'
+.\switch_database_to_mysql.ps1
+```
+
+也可以直接用参数传入：
+
+```powershell
+.\switch_database_to_mysql.ps1 -MysqlDatabaseUrl 'mysql+asyncmy://user:password@127.0.0.1:3306/deerflow?charset=utf8mb4'
+```
+
+如果 SQLite 不在默认路径：
+
+```powershell
+.\switch_database_to_mysql.ps1 `
+  -SqliteDb 'D:\deerflow-data\data\deerflow.db' `
+  -MysqlDatabaseUrl 'mysql+asyncmy://user:password@127.0.0.1:3306/deerflow?charset=utf8mb4'
+```
+
+如果目标 MySQL 表已有旧数据，并确认要清空后重迁：
+
+```powershell
+.\switch_database_to_mysql.ps1 `
+  -TruncateTarget 1 `
+  -MysqlDatabaseUrl 'mysql+asyncmy://user:password@127.0.0.1:3306/deerflow?charset=utf8mb4'
+```
+
+切换完成后，继续用原本地启动方式：
+
+```powershell
+cd backend
+$env:PYTHONPATH='.'
+uv run uvicorn app.gateway.app:app --host 0.0.0.0 --port 8001
+```
+
+## 四、脚本会自动做什么
+
+`switch_database_to_mysql.ps1` 会自动：
+
+1. 检查 `uv`、配置文件、迁移脚本、SQLite 文件是否存在。
+2. 备份：
+
+```text
+backend\.deer-flow\backups\mysql-switch-YYYYMMDD_HHMMSS\config.yaml.bak
+backend\.deer-flow\backups\mysql-switch-YYYYMMDD_HHMMSS\env.bak
+backend\.deer-flow\backups\mysql-switch-YYYYMMDD_HHMMSS\deerflow.db.bak
+```
+
+3. 将 `MYSQL_DATABASE_URL` 写入 `.env`。
+4. 如果 `backend\.venv` 不存在，自动执行 `uv venv`。
+5. 执行 `uv pip install asyncmy==0.2.10`。
+6. 创建/升级 MySQL schema。
+7. 从 SQLite 迁移业务表到 MySQL。
+8. 校验每张业务表行数。
+9. 修改 `config.yaml`：
+
+```yaml
+database:
+  backend: mysql
+  mysql_url: $MYSQL_DATABASE_URL
+  pool_size: 10
+  echo_sql: false
+
+checkpointer:
+  type: sqlite
+  connection_string: D:\...\offline-backend-20260512\backend\.deer-flow\data\deerflow.db
+```
+
+## 五、验证
+
+启动后端后检查：
+
+```powershell
+(Invoke-WebRequest -UseBasicParsing http://127.0.0.1:8001/health).StatusCode
+```
+
+功能验证：
+
+```text
+登录/退出
+历史会话列表
+打开旧会话
+新建对话
+定时任务
+分享链接
+后端日志无 MySQL driver 或连接错误
+```
+
+## 六、回滚
+
+停止本地后端进程后恢复备份：
+
+```powershell
+Copy-Item backend\.deer-flow\backups\mysql-switch-YYYYMMDD_HHMMSS\config.yaml.bak config.yaml -Force
+Copy-Item backend\.deer-flow\backups\mysql-switch-YYYYMMDD_HHMMSS\env.bak .env -Force
+Copy-Item backend\.deer-flow\backups\mysql-switch-YYYYMMDD_HHMMSS\deerflow.db.bak backend\.deer-flow\data\deerflow.db -Force
+```
+
+重新启动本地后端即可。
+
+## 七、归档文件存储
+
+后续 90 天前对话归档建议放在：
+
+```text
+offline-backend-20260512\backend\.deer-flow\archives\conversations
+```
+
+如果你设置了自定义 `DEER_FLOW_HOME`，则放在：
+
+```text
+%DEER_FLOW_HOME%\archives\conversations
+```
+
+Windows 本地版不涉及 Docker 挂载。这个目录只需要跟随你的本地数据目录一起备份即可。
+
+归档文件被手动删除一部分时，正确行为应是该历史会话无法恢复并返回明确提示，不应该影响系统启动或 90 天内会话使用。归档功能正式实现时，需要把“归档文件缺失”作为可预期异常处理。

offline-backend-20260512/backend/CLAUDE.md

@@ -214,7 +214,7 @@ FastAPI application on port 8001 with health check at `GET /health`. Set `GATEWA
 |--------|-----------|
 | **Models** (`/api/models`) | `GET /` - list models; `GET /{name}` - model details |
 | **MCP** (`/api/mcp`) | `GET /config` - get config; `PUT /config` - update config (saves to extensions_config.json) |
-| **Skills** (`/api/skills`) | `GET /` - list skills (optional `search` fuzzy-name + `tag_id` filters; each item carries `tags` + owner-authored `detail`); `GET /{name}` - details; `PUT /{name}` - update enabled; `PUT /{name}/detail` - set the long-form `detail` text (custom skill: owner or admin; built-in/public: admin only — materializes a `skills` row on demand); `POST /install` - install from .skill archive (accepts standard optional frontmatter like `version`, `author`, `compatibility`) |
+| **Skills** (`/api/skills`) | `GET /` - list skills (optional `search` fuzzy-name + `tag_id` filters; each item carries `tags` + owner-authored `detail`); `GET /{name}` - details; `PUT /{name}` - update enabled; `PUT /{name}/detail` - set the long-form `detail` text (custom skill: owner or admin; built-in/public: admin only — materializes a `skills` row on demand); `GET /{name}/content` - raw SKILL.md source, restricted to an admin or the publisher (custom-skill owner); other users get 403 and see only description + detail; `POST /install` - install from .skill archive (accepts standard optional frontmatter like `version`, `author`, `compatibility`) |
 | **Memory** (`/api/memory`) | `GET /` - memory data; `POST /reload` - force reload; `GET /config` - config; `GET /status` - config + data |
 | **Agents** (`/api/agents`) | `GET /` - list built-in, owned, and published agents (optional `search` + `tag_id` filters; each item carries `tags`); `POST /` - create user-owned agent; `GET/PUT/DELETE /{id}` - read/update/delete by stable agent id; `GET /check` - validate non-empty display name (duplicates allowed) |
 | **Tags** (`/api/tags`) | `GET /` - list tags (optional `tag_type` filter; open to all); `POST /` - create tag (admin); `PUT /{id}` / `DELETE /{id}` - update/delete tag (admin); `GET /assignments/{target_type}/{target_id}` - tags on a resource; `PUT /assignments/{target_type}/{target_id}` - replace a resource's tags (admin). Tags are typed `agent`/`skill`/`scheduled_task` and may only tag resources of their own type. |
@@ -225,13 +225,31 @@ FastAPI application on port 8001 with health check at `GET /health`. Set `GATEWA
 | **Thread Runs** (`/api/threads/{id}/runs`) | `POST /` - create background run; `POST /stream` - create + SSE stream; `POST /wait` - create + block; `GET /` - list runs; `GET /{rid}` - run details; `POST /{rid}/cancel` - cancel; `GET /{rid}/join` - join SSE; `GET /{rid}/messages` - paginated messages `{data, has_more}`; `GET /{rid}/events` - full event stream; `GET /../messages` - thread messages with feedback; `GET /../token-usage` - aggregate tokens |
 | **Feedback** (`/api/threads/{id}/runs/{rid}/feedback`) | `PUT /` - upsert feedback; `DELETE /` - delete user feedback; `POST /` - create feedback; `GET /` - list feedback; `GET /stats` - aggregate stats; `DELETE /{fid}` - delete specific |
 | **Runs** (`/api/runs`) | `POST /stream` - stateless run + SSE; `POST /wait` - stateless run + block; `GET /{rid}/messages` - paginated messages by run_id `{data, has_more}` (cursor: `after_seq`/`before_seq`); `GET /{rid}/feedback` - list feedback by run_id |
+| **Thread Shares** (`/api/thread-shares`) | Per-conversation sharing with two modes (`thread_shares.mode`). **`import`**: `POST /` `{thread_id, mode}` - create (or reuse) a revocable share code; `GET /{code}/preview` + `POST /{code}/import` - copy that conversation into the caller's account (fresh `thread_id` via `app/gateway/thread_copy.py` + new `threads_meta` row + `user-data` copy; dedup on `metadata.shared_origin`). **`view`**: a public, read-only static page — see Public Shares below. Both modes: `GET /` - list my codes; `DELETE /{code}` - revoke. |
+| **Public Shares** (`/api/public/shares`) | **Unauthenticated** (the `/api/public/` prefix is whitelisted in `auth_middleware._PUBLIC_PATH_PREFIXES`). `GET /{code}` - read-only conversation snapshot (title + serialized messages + artifacts) for a `view`-mode share; messages are read straight from the latest checkpoint. `GET /{code}/files/{path}` - serves an **image** referenced by that conversation (images only — non-image paths 404; SVG forced to download). Missing/revoked/non-`view` codes all return 404. |
+| **Scheduled Tasks** (`/api/scheduled-tasks`) | Per-user cron-like agent tasks. `GET/POST /` - list/create owned tasks; `PATCH/DELETE /{id}` - update/delete (owner); `POST /{id}/{pause,resume,trigger}`; `GET /{id}/runs`, `GET /runs/{rid}`, run-file preview/edit/download; `GET /runs/{rid}/messages` - agent messages for the run's underlying agent run (used to inspect a stuck/running run; authorized via `_load_run`); `DELETE /runs/{rid}` - owner-scoped, with an admin fallback so admins can delete any user's run; publish/subscribe under `/{id}/{publish,unpublish,subscribe}` and `GET /published`. **Admin (cross-user):** `GET /admin/all` - every task; `PATCH/DELETE /admin/{id}` - edit/delete any task; `POST /admin/{id}/trigger`; `GET /admin/{id}/runs`. Admin routes require `system_role == "admin"`. |
 
 Proxied through nginx: `/api/langgraph/*` → LangGraph, all other `/api/*` → Gateway.
 
+### Scheduled Task Runtime
+
+`ScheduledTaskService` (`deerflow/runtime/scheduler/service.py`) polls due tasks every `poll_interval_seconds` and executes each in its own throwaway thread, serialized by a shared `_agent_run_lock`.
+
+**Stuck-run recovery**: each execution attempt is bounded by `_RUN_ATTEMPT_TIMEOUT_SECONDS` (30 min) via `asyncio.wait_for`. On timeout the run is retried up to `_MAX_RUN_RETRIES` (3) times, then marked `failed`. A watchdog (`_reconcile_stuck_runs`, run every poll) recovers runs left in `running` with no in-process owner — e.g. orphaned by a crash or restart — re-driving them through the same retry budget so a task can never stay perpetually "executing". The `scheduled_task_runs.retry_count` column tracks consumed retries.
+
+**Unique task names**: task names are unique per user (`uq_scheduled_tasks_user_name`). `create_task`/`update_task`/`admin_update_task` proactively check via `_assert_name_available()` and raise `DuplicateTaskNameError` on a collision; the router translates that into HTTP `409` instead of letting the raw DB `IntegrityError` surface as a `500`.
+
 ### Custom Agent Persistence
 
 Custom agent metadata lives in the `agents` ORM table (`deerflow.persistence.agents`). `agents.id` is the stable runtime id and the filesystem directory name under `.deer-flow/agents/{id}/`; `agents.name` is display-only, can contain Chinese characters, and is not unique. `user_id IS NULL` marks built-in agents, user-owned agents are visible only to their owner unless `published = true`, and update/delete operations require ownership. The runtime accepts `agent_id` in context/configurable, and non-default `assistant_id` values are treated as agent ids after visibility checks.
 
+### Portable Column Types (`deerflow/persistence/types.py`)
+
+Two `TypeDecorator`s keep ORM columns correct across the `sqlite` / `postgres` / `mysql` backends. **All ORM timestamp/JSON columns must use these, not the raw SQLAlchemy types.**
+
+- **`PortableJSON`** — native `JSON` on SQLite/Postgres; `TEXT` (with manual `json.dumps`/`loads`) on MySQL, where older servers lack JSON support.
+- **`BeijingDateTime`** — stores timestamps as Beijing (UTC+8) wall-clock time. The app records time with `datetime.now(UTC)`, but MySQL `DATETIME` / SQLite have no timezone and persist whatever wall clock the driver serializes — so a raw `DateTime` column would store UTC and read 8 hours behind Beijing. `BeijingDateTime` converts UTC→Beijing on bind and re-attaches `+08:00` on result, so the database holds Beijing time while Python still gets timezone-aware datetimes (instant comparisons stay correct, including in WHERE clauses). PostgreSQL `timestamptz` stores the instant unambiguously, so values pass through unchanged there. Uses a fixed UTC+8 offset (China has no DST), so no `tzdata` dependency.
+
 ### Sandbox System (`packages/harness/deerflow/sandbox/`)
 
 **Interface**: Abstract `Sandbox` with `execute_command`, `read_file`, `write_file`, `list_dir`

offline-backend-20260512/backend/app/gateway/app.py

@@ -42,6 +42,7 @@ from app.gateway.routers import (
     system_settings,
     tags,
     thread_runs,
+    thread_shares,
     threads,
     uploads,
     writing,
@@ -255,7 +256,7 @@ async def _run_db_migrations() -> None:
         logger.info("Persistence backend=memory — skipping Alembic migrations")
         return
 
-    db_url = str(engine.url)
+    db_url = engine.url.render_as_string(hide_password=False).replace("%", "%%")
     migrations_dir = str(Path(_persistence_pkg.__file__).parent / "migrations")
 
     def _run_sync() -> None:
@@ -709,6 +710,10 @@ This gateway provides custom endpoints for models, MCP configuration, skills, an
     # Thread Runs API (LangGraph Platform-compatible runs lifecycle)
     app.include_router(thread_runs.router)
 
+    app.include_router(thread_shares.router)
+    # Public, unauthenticated read-only share snapshots (/api/public/shares/*).
+    app.include_router(thread_shares.public_router)
+
     # Stateless Runs API (stream/wait without a pre-existing thread)
     app.include_router(runs.router)
 

offline-backend-20260512/backend/app/gateway/auth_middleware.py

@@ -23,11 +23,16 @@ from app.gateway.internal_auth import INTERNAL_AUTH_HEADER_NAME, get_internal_us
 from deerflow.runtime.user_context import reset_current_user, set_current_user
 
 # Paths that never require authentication.
+#
+# ``/api/public/`` is a namespace reserved for intentionally world-readable,
+# read-only endpoints (e.g. public conversation share snapshots). Only mount
+# safe read-only routes under it — everything there bypasses auth entirely.
 _PUBLIC_PATH_PREFIXES: tuple[str, ...] = (
     "/health",
     "/docs",
     "/redoc",
     "/openapi.json",
+    "/api/public/",
 )
 
 # Exact auth paths that are public (login/register/status check).

offline-backend-20260512/backend/app/gateway/deps.py

@@ -122,6 +122,10 @@ async def langgraph_runtime(app: FastAPI) -> AsyncGenerator[None, None]:
 
         app.state.tag_store = make_tag_store(sf)
 
+        from deerflow.persistence.thread_shares import make_thread_share_store
+
+        app.state.thread_share_store = make_thread_share_store(sf)
+
         from deerflow.persistence.ai_writing_sessions import make_ai_writing_session_store
 
         app.state.ai_writing_session_store = make_ai_writing_session_store(sf)
@@ -230,6 +234,14 @@ def get_tag_store(request: Request) -> TagStore:
     return val
 
 
+def get_thread_share_store(request: Request):
+    """Return the conversation share-link store."""
+    val = getattr(request.app.state, "thread_share_store", None)
+    if val is None:
+        raise HTTPException(status_code=503, detail="Thread share store not available")
+    return val
+
+
 def get_ai_writing_session_store(request: Request):
     """Return the AI writing session store, or None when not configured."""
     return getattr(request.app.state, "ai_writing_session_store", None)

offline-backend-20260512/backend/app/gateway/routers/scheduled_tasks.py

@@ -14,8 +14,8 @@ from fastapi import APIRouter, HTTPException, Query, Request
 from fastapi.responses import FileResponse, Response, StreamingResponse
 from pydantic import BaseModel, Field
 
-from app.gateway.deps import get_current_user, get_local_provider, get_tag_store
+from app.gateway.deps import get_current_user, get_local_provider, get_optional_user_from_request, get_run_event_store, get_run_store, get_tag_store
-from deerflow.runtime.scheduler import get_scheduled_task_service
+from deerflow.runtime.scheduler import DuplicateTaskNameError, get_scheduled_task_service
 
 router = APIRouter(prefix="/api/scheduled-tasks", tags=["scheduled-tasks"])
 
@@ -61,6 +61,26 @@ async def _user_id(request: Request) -> str:
     return user_id
 
 
+async def _is_admin(request: Request) -> bool:
+    """True when the caller is an admin (or auth is disabled entirely)."""
+    user = await get_optional_user_from_request(request)
+    if user is None:
+        return True
+    return getattr(user, "system_role", None) == "admin"
+
+
+async def _load_run(service, request: Request, run_id: str, user_id: str) -> dict[str, Any] | None:
+    """Owner/subscriber run lookup, with an admin fallback to any run.
+
+    Lets admins open run results for tasks they do not own (the admin
+    management view links into the shared run-detail page).
+    """
+    run = await service.get_run(user_id, run_id)
+    if run is None and await _is_admin(request):
+        run = await service.admin_get_run(run_id)
+    return run
+
+
 async def _enrich_with_creator(tasks: list[dict[str, Any]] | dict[str, Any] | None) -> Any:
     """Attach ``creator_email`` / ``creator_user_id`` to one or many task dicts.
 
@@ -208,12 +228,48 @@ async def list_scheduled_task_runs(task_id: str, request: Request, limit: int =
 async def get_scheduled_task_run(run_id: str, request: Request) -> dict:
     service = get_scheduled_task_service()
     user_id = await _user_id(request)
-    run = await service.get_run(user_id, run_id)
+    run = await _load_run(service, request, run_id, user_id)
     if run is None:
         raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
     return run
 
 
+@router.get("/runs/{run_id}/messages")
+async def get_scheduled_task_run_messages(run_id: str, request: Request, limit: int = 500) -> dict:
+    """Agent messages produced by a scheduled run's underlying agent run.
+
+    Lets the run-detail page show what the agent is doing — useful when a run
+    is stuck in ``running``. Authorization reuses :func:`_load_run` (owner /
+    subscriber / admin); the event-store query then passes ``user_id=None``
+    because access has already been checked.
+    """
+    service = get_scheduled_task_service()
+    user_id = await _user_id(request)
+    run = await _load_run(service, request, run_id, user_id)
+    if run is None:
+        raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
+    agent_run_id = run.get("agent_run_id")
+    if not agent_run_id:
+        return {"messages": [], "has_more": False}
+    # Each scheduled run executes on its own throwaway runtime thread — NOT the
+    # run row's ``scheduler_thread_id`` — so resolve the real thread from the
+    # run store before querying its message events.
+    run_store = get_run_store(request)
+    agent_run = await run_store.get(agent_run_id, user_id=None)
+    if agent_run is None:
+        return {"messages": [], "has_more": False}
+    capped = max(1, min(limit, 1000))
+    event_store = get_run_event_store(request)
+    rows = await event_store.list_messages_by_run(
+        agent_run["thread_id"],
+        agent_run_id,
+        limit=capped + 1,
+        user_id=None,
+    )
+    has_more = len(rows) > capped
+    return {"messages": rows[:capped] if has_more else rows, "has_more": has_more}
+
+
 @router.delete("/runs/{run_id}")
 async def delete_scheduled_task_run(run_id: str, request: Request) -> dict:
     service = get_scheduled_task_service()
@@ -221,7 +277,15 @@ async def delete_scheduled_task_run(run_id: str, request: Request) -> dict:
     try:
         deleted = await service.delete_run(user_id, run_id)
     except PermissionError as exc:
-        raise HTTPException(status_code=403, detail=str(exc))
+        # Owner-only for regular users; admins may still delete any run.
+        if await _is_admin(request):
+            deleted = await service.admin_delete_run(run_id)
+        else:
+            raise HTTPException(status_code=403, detail=str(exc))
+    # A run the caller does not own returns deleted=False — fall back to an
+    # admin-scoped delete so admins can clean up other users' runs.
+    if not deleted and await _is_admin(request):
+        deleted = await service.admin_delete_run(run_id)
     if not deleted:
         raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
     return {"success": True}
@@ -231,7 +295,7 @@ async def delete_scheduled_task_run(run_id: str, request: Request) -> dict:
 async def get_scheduled_task_run_file(run_id: str, file_index: int, request: Request) -> dict:
     service = get_scheduled_task_service()
     user_id = await _user_id(request)
-    run = await service.get_run(user_id, run_id)
+    run = await _load_run(service, request, run_id, user_id)
     if run is None:
         raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
     item, path = _run_file_path(run, file_index)
@@ -279,7 +343,7 @@ async def update_scheduled_task_run_file(
 async def download_scheduled_task_run(run_id: str, request: Request):
     service = get_scheduled_task_service()
     user_id = await _user_id(request)
-    run = await service.get_run(user_id, run_id)
+    run = await _load_run(service, request, run_id, user_id)
     if run is None:
         raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
 
@@ -328,7 +392,7 @@ async def download_scheduled_task_run(run_id: str, request: Request):
 async def download_scheduled_task_run_file(run_id: str, file_index: int, request: Request):
     service = get_scheduled_task_service()
     user_id = await _user_id(request)
-    run = await service.get_run(user_id, run_id)
+    run = await _load_run(service, request, run_id, user_id)
     if run is None:
         raise HTTPException(status_code=404, detail=f"Run {run_id} not found")
     item, path = _run_file_path(run, file_index)
@@ -361,15 +425,18 @@ async def update_delivery_profile(body: ScheduledTaskDeliveryProfileUpdateReques
 async def create_scheduled_task(body: ScheduledTaskCreateRequest, request: Request) -> dict:
     service = get_scheduled_task_service()
     user_id = await _user_id(request)
-    task = await service.create_task(
+    try:
-        user_id=user_id,
+        task = await service.create_task(
-        name=body.name,
+            user_id=user_id,
-        prompt=body.prompt,
+            name=body.name,
-        schedule=body.schedule,
+            prompt=body.prompt,
-        timezone=body.timezone,
+            schedule=body.schedule,
-        execution_agent_name=body.execution_agent_name,
+            timezone=body.timezone,
-        execution_context=body.execution_context,
+            execution_agent_name=body.execution_agent_name,
-    )
+            execution_context=body.execution_context,
+        )
+    except DuplicateTaskNameError:
+        raise HTTPException(status_code=409, detail="已存在同名定时任务,请换一个名称")
     await _enrich_with_creator(task)
     return task
 
@@ -378,7 +445,10 @@ async def create_scheduled_task(body: ScheduledTaskCreateRequest, request: Reque
 async def update_scheduled_task(task_id: str, body: ScheduledTaskUpdateRequest, request: Request) -> dict:
     service = get_scheduled_task_service()
     user_id = await _user_id(request)
-    task = await service.update_task(user_id, task_id, body.model_dump(exclude_unset=True))
+    try:
+        task = await service.update_task(user_id, task_id, body.model_dump(exclude_unset=True))
+    except DuplicateTaskNameError:
+        raise HTTPException(status_code=409, detail="已存在同名定时任务,请换一个名称")
     if task is None:
         raise HTTPException(status_code=404, detail=f"Task {task_id} not found")
     await _enrich_with_creator(task)
@@ -497,3 +567,85 @@ async def delete_scheduled_task_subscription(task_id: str, request: Request) ->
     if not deleted:
         raise HTTPException(status_code=404, detail="Subscription not found")
     return {"success": True}
+
+
+# --- Admin (cross-user management) ---
+
+
+async def _require_admin(request: Request) -> None:
+    """Reject non-admins. Lets the call through when auth is disabled."""
+    user = await get_optional_user_from_request(request)
+    if user is None:
+        return
+    if getattr(user, "system_role", None) != "admin":
+        raise HTTPException(status_code=403, detail="定时任务管理仅限管理员")
+
+
+@router.get("/admin/all")
+async def admin_list_scheduled_tasks(
+    request: Request,
+    search: str | None = Query(default=None, description="Case-insensitive fuzzy match on task name"),
+) -> list[dict]:
+    """List every scheduled task across all users. Admin-only."""
+    await _require_admin(request)
+    service = get_scheduled_task_service()
+    tasks = await service.admin_list_tasks()
+    await _enrich_with_creator(tasks)
+
+    tag_store = get_tag_store(request)
+    assignments = await tag_store.list_assignments("scheduled_task", [str(t.get("task_id")) for t in tasks])
+    for task in tasks:
+        task["tags"] = assignments.get(str(task.get("task_id")), [])
+    if search:
+        needle = search.strip().lower()
+        tasks = [t for t in tasks if needle in str(t.get("name", "")).lower()]
+    return tasks
+
+
+@router.get("/admin/{task_id}/runs")
+async def admin_list_scheduled_task_runs(task_id: str, request: Request, limit: int = 50) -> list[dict]:
+    """List runs for any task regardless of owner. Admin-only."""
+    await _require_admin(request)
+    service = get_scheduled_task_service()
+    return await service.admin_list_runs(task_id, limit=max(1, min(limit, 200)))
+
+
+@router.patch("/admin/{task_id}")
+async def admin_update_scheduled_task(task_id: str, body: ScheduledTaskUpdateRequest, request: Request) -> dict:
+    """Update any task regardless of owner. Admin-only."""
+    await _require_admin(request)
+    service = get_scheduled_task_service()
+    try:
+        task = await service.admin_update_task(task_id, body.model_dump(exclude_unset=True))
+    except DuplicateTaskNameError:
+        raise HTTPException(status_code=409, detail="已存在同名定时任务,请换一个名称")
+    if task is None:
+        raise HTTPException(status_code=404, detail=f"Task {task_id} not found")
+    await _enrich_with_creator(task)
+    return task
+
+
+@router.delete("/admin/{task_id}")
+async def admin_delete_scheduled_task(task_id: str, request: Request) -> dict:
+    """Delete any task regardless of owner. Admin-only."""
+    await _require_admin(request)
+    service = get_scheduled_task_service()
+    deleted = await service.admin_delete_task(task_id)
+    if not deleted:
+        raise HTTPException(status_code=404, detail=f"Task {task_id} not found")
+    try:
+        await get_tag_store(request).unassign_all("scheduled_task", task_id)
+    except Exception:  # noqa: BLE001 — tag cleanup must not block deletion
+        pass
+    return {"success": True}
+
+
+@router.post("/admin/{task_id}/trigger")
+async def admin_trigger_scheduled_task(task_id: str, request: Request) -> dict:
+    """Trigger an immediate run of any task regardless of owner. Admin-only."""
+    await _require_admin(request)
+    service = get_scheduled_task_service()
+    task = await service.admin_trigger_task(task_id)
+    if task is None:
+        raise HTTPException(status_code=404, detail=f"Task {task_id} not found")
+    return {"success": True, "task": task}

offline-backend-20260512/backend/app/gateway/routers/skills.py

@@ -45,6 +45,24 @@ def _is_admin_user(request: Request) -> bool:
     return getattr(user, "system_role", None) == "admin"
 
 
+def _can_view_skill_source(
+    category: SkillCategory,
+    owner_user_id: str | None,
+    user_id: str,
+    *,
+    is_admin: bool,
+) -> bool:
+    """Whether the raw SKILL.md source is visible to a user.
+
+    Admins may view any skill's source; otherwise only the publisher (the
+    owner of a custom skill) qualifies. Built-in / public skills have no human
+    owner, so for non-admins they are never source-visible.
+    """
+    if is_admin:
+        return True
+    return category == SkillCategory.CUSTOM and owner_user_id is not None and owner_user_id == user_id
+
+
 async def _get_owned_skill_or_raise(store: SkillStore, name: str, user_id: str) -> dict[str, Any]:
     owned = await store.get_owned(name, user_id)
     if owned is not None:
@@ -870,15 +888,27 @@ class SkillContentResponse(BaseModel):
     "/skills/{skill_name}/content",
     response_model=SkillContentResponse,
     summary="Get Skill Markdown Content",
-    description="Retrieve the raw SKILL.md content of a specific skill (public or custom).",
+    description="Retrieve the raw SKILL.md content of a skill. Only an admin or the skill's publisher (owner of a custom skill) may read it; other users see only the description and detail.",
 )
-async def get_skill_content(skill_name: str, config: AppConfig = Depends(get_config)) -> SkillContentResponse:
+async def get_skill_content(
+    skill_name: str,
+    request: Request,
+    config: AppConfig = Depends(get_config),
+    skill_store: SkillStore = Depends(get_skill_store),
+) -> SkillContentResponse:
     try:
         skill_name = skill_name.replace("\r\n", "").replace("\n", "")
         skills = get_or_new_skill_storage(app_config=config).load_skills(enabled_only=False)
         skill = next((s for s in skills if s.name == skill_name), None)
         if skill is None:
             raise HTTPException(status_code=404, detail=f"Skill '{skill_name}' not found")
+        # The raw SKILL.md is implementation detail — only an admin or the
+        # publisher (owner of a custom skill) may view it. Everyone else is
+        # limited to the description + detail surfaced by the list/detail APIs.
+        record = await skill_store.get_any(skill_name)
+        owner_user_id = record.get("owner_user_id") if record else None
+        if not _can_view_skill_source(skill.category, owner_user_id, _current_user_id(request), is_admin=_is_admin_user(request)):
+            raise HTTPException(status_code=403, detail="Only the skill publisher or an admin can view the SKILL.md source")
         content = skill.skill_file.read_text(encoding="utf-8")
         return SkillContentResponse(name=skill.name, category=skill.category, content=content)
     except HTTPException:

offline-backend-20260512/backend/app/gateway/routers/thread_shares.py

@@ -0,0 +1,340 @@
+"""Conversation sharing API.
+
+A user creates a share code for *one* of their conversations; redeeming the
+code copies that conversation into the redeemer's account as an independent
+copy they fully own and can keep chatting in. See ``app/gateway/thread_copy.py``
+for the checkpoint duplication.
+"""
+
+from __future__ import annotations
+
+import logging
+import mimetypes
+import shutil
+import uuid
+from pathlib import Path
+
+from fastapi import APIRouter, Depends, HTTPException, Request
+from fastapi.responses import FileResponse
+from pydantic import BaseModel, Field
+
+from app.gateway.deps import get_checkpointer, get_thread_share_store, get_thread_store
+from app.gateway.thread_copy import copy_thread_state
+from deerflow.config.paths import get_paths
+from deerflow.persistence.thread_meta.base import ThreadMetaStore
+from deerflow.persistence.thread_shares.base import ThreadShareStore
+from deerflow.runtime import serialize_channel_values
+from deerflow.runtime.user_context import get_effective_user_id
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/api/thread-shares", tags=["thread-shares"])
+
+# Public, unauthenticated router. Its prefix is whitelisted in
+# ``auth_middleware._PUBLIC_PATH_PREFIXES`` — only mount read-only endpoints
+# that are intentionally world-readable here.
+public_router = APIRouter(prefix="/api/public/shares", tags=["thread-shares-public"])
+
+_UNTITLED = "未命名对话"
+
+# Valid share modes. "import" copies the conversation into the recipient's
+# account; "view" is a public read-only static page anyone can open.
+_SHARE_MODES = ("import", "view")
+
+
+def _current_user_id(request: Request) -> str:
+    user = getattr(request.state, "user", None)
+    if user is not None:
+        return str(user.id)
+    return get_effective_user_id()
+
+
+# ---------------------------------------------------------------------------
+# Request / response models
+# ---------------------------------------------------------------------------
+
+
+class CreateShareRequest(BaseModel):
+    thread_id: str = Field(..., description="The conversation to share")
+    mode: str = Field(
+        default="import",
+        description='"import" — recipient copies the conversation; "view" — public read-only page',
+    )
+
+
+class ShareResponse(BaseModel):
+    share_code: str = Field(..., description="Short code that recipients enter to import")
+    owner_user_id: str = Field(..., description="User who created the share")
+    thread_id: str = Field(..., description="The shared conversation")
+    revoked: bool = Field(default=False, description="Whether the code has been revoked")
+    mode: str = Field(default="import", description='"import" or "view"')
+    created_at: str | None = Field(default=None, description="Creation timestamp (ISO-8601)")
+
+
+class PublicShareSnapshotResponse(BaseModel):
+    """Read-only conversation snapshot served to anonymous viewers."""
+
+    share_code: str
+    title: str = Field(..., description="Conversation title")
+    mode: str = Field(default="view")
+    messages: list[dict] = Field(default_factory=list, description="Serialized conversation messages")
+    artifacts: list[str] = Field(default_factory=list, description="Artifact virtual paths produced in the conversation")
+    created_at: str | None = Field(default=None, description="When the share was created (ISO-8601)")
+
+
+class SharesListResponse(BaseModel):
+    shares: list[ShareResponse]
+
+
+class SharePreviewResponse(BaseModel):
+    share_code: str
+    shared_by: str = Field(..., description="Owner user id of the shared conversation")
+    title: str = Field(..., description="Title of the shared conversation")
+
+
+class ImportResultResponse(BaseModel):
+    imported: int = Field(..., description="1 when the conversation was copied, else 0")
+    skipped: int = Field(..., description="1 when it was already imported, else 0")
+
+
+# ---------------------------------------------------------------------------
+# Owner side — create / list / revoke
+# ---------------------------------------------------------------------------
+
+
+@router.post("", response_model=ShareResponse, summary="Create a share code for one conversation")
+async def create_share(
+    body: CreateShareRequest,
+    request: Request,
+    share_store: ThreadShareStore = Depends(get_thread_share_store),
+    thread_store: ThreadMetaStore = Depends(get_thread_store),
+) -> ShareResponse:
+    me = _current_user_id(request)
+    mode = body.mode if body.mode in _SHARE_MODES else "import"
+    # Only the conversation's owner may share it.
+    meta = await thread_store.get(body.thread_id, user_id=me)
+    if meta is None:
+        raise HTTPException(status_code=404, detail="Conversation not found")
+    # Reuse an existing active code (of the same mode) so re-sharing is idempotent.
+    existing = await share_store.get_active_for_thread(me, body.thread_id, mode=mode)
+    if existing is not None:
+        return ShareResponse(**existing)
+    record = await share_store.create(me, body.thread_id, mode=mode)
+    return ShareResponse(**record)
+
+
+@router.get("", response_model=SharesListResponse, summary="List my conversation share codes")
+async def list_shares(
+    request: Request,
+    share_store: ThreadShareStore = Depends(get_thread_share_store),
+) -> SharesListResponse:
+    records = await share_store.list_for_owner(_current_user_id(request))
+    return SharesListResponse(shares=[ShareResponse(**r) for r in records])
+
+
+@router.delete("/{share_code}", summary="Revoke a conversation share code")
+async def revoke_share(
+    share_code: str,
+    request: Request,
+    share_store: ThreadShareStore = Depends(get_thread_share_store),
+) -> dict[str, bool]:
+    ok = await share_store.revoke(share_code, _current_user_id(request))
+    if not ok:
+        raise HTTPException(status_code=404, detail="Share code not found")
+    return {"success": True}
+
+
+# ---------------------------------------------------------------------------
+# Recipient side — preview / import
+# ---------------------------------------------------------------------------
+
+
+async def _resolve_active_share(share_code: str, share_store: ThreadShareStore) -> dict:
+    share = await share_store.get(share_code)
+    if share is None:
+        raise HTTPException(status_code=404, detail="Share code not found")
+    if share.get("revoked"):
+        raise HTTPException(status_code=410, detail="This share code has been revoked")
+    return share
+
+
+@router.get("/{share_code}/preview", response_model=SharePreviewResponse, summary="Preview a shared conversation")
+async def preview_share(
+    share_code: str,
+    share_store: ThreadShareStore = Depends(get_thread_share_store),
+    thread_store: ThreadMetaStore = Depends(get_thread_store),
+) -> SharePreviewResponse:
+    share = await _resolve_active_share(share_code, share_store)
+    owner = share["owner_user_id"]
+    meta = await thread_store.get(share["thread_id"], user_id=owner)
+    if meta is None:
+        raise HTTPException(status_code=404, detail="The shared conversation no longer exists")
+    return SharePreviewResponse(
+        share_code=share_code,
+        shared_by=owner,
+        title=meta.get("display_name") or _UNTITLED,
+    )
+
+
+def _copy_thread_files(origin_thread_id: str, owner_user_id: str, new_thread_id: str, recipient_user_id: str) -> None:
+    """Copy a thread's user-data directory (uploads + outputs/artifacts)."""
+    paths = get_paths()
+    src_data = paths.thread_dir(origin_thread_id, user_id=owner_user_id) / "user-data"
+    if not src_data.is_dir():
+        return
+    dst_data = paths.thread_dir(new_thread_id, user_id=recipient_user_id) / "user-data"
+    shutil.copytree(src_data, dst_data, dirs_exist_ok=True)
+
+
+@router.post("/{share_code}/import", response_model=ImportResultResponse, summary="Import a shared conversation")
+async def import_share(
+    share_code: str,
+    request: Request,
+    share_store: ThreadShareStore = Depends(get_thread_share_store),
+    thread_store: ThreadMetaStore = Depends(get_thread_store),
+) -> ImportResultResponse:
+    share = await _resolve_active_share(share_code, share_store)
+    if share.get("mode") == "view":
+        raise HTTPException(status_code=400, detail="This is a view-only share — open its link to read it instead of importing")
+    owner = share["owner_user_id"]
+    origin_id = share["thread_id"]
+    recipient = _current_user_id(request)
+    if owner == recipient:
+        raise HTTPException(status_code=400, detail="You cannot import your own share code")
+
+    src = await thread_store.get(origin_id, user_id=owner)
+    if src is None:
+        raise HTTPException(status_code=404, detail="The shared conversation no longer exists")
+
+    # Dedup: skip if this user already imported this conversation.
+    mine = await thread_store.search(user_id=recipient, limit=2000)
+    already = {(t.get("metadata") or {}).get("shared_origin") for t in mine}
+    if origin_id in already:
+        return ImportResultResponse(imported=0, skipped=1)
+
+    new_id = str(uuid.uuid4())
+    checkpointer = get_checkpointer(request)
+    await copy_thread_state(checkpointer, origin_id, new_id)
+
+    metadata = dict(src.get("metadata") or {})
+    metadata.update({"shared_from_code": share_code, "shared_origin": origin_id, "shared_by": owner})
+    await thread_store.create(
+        new_id,
+        assistant_id=src.get("assistant_id"),
+        user_id=recipient,
+        display_name=src.get("display_name"),
+        metadata=metadata,
+    )
+    try:
+        _copy_thread_files(origin_id, owner, new_id, recipient)
+    except Exception as exc:  # noqa: BLE001 — file copy failure must not lose the conversation
+        logger.warning("Failed to copy files for thread %s -> %s: %s", origin_id, new_id, exc)
+
+    logger.info("Share %s imported by %s as thread %s", share_code, recipient, new_id)
+    return ImportResultResponse(imported=1, skipped=0)
+
+
+# ---------------------------------------------------------------------------
+# Public read-only view — no authentication required
+# ---------------------------------------------------------------------------
+
+
+async def _load_thread_snapshot(checkpointer, thread_id: str) -> tuple[list[dict], list[str]]:
+    """Return (messages, artifacts) from a thread's latest checkpoint.
+
+    Reads straight from the checkpointer — the same source the live chat
+    streams from — so the static snapshot matches the conversation exactly.
+    """
+    config = {"configurable": {"thread_id": thread_id, "checkpoint_ns": ""}}
+    checkpoint_tuple = await checkpointer.aget_tuple(config)
+    if checkpoint_tuple is None:
+        return [], []
+    checkpoint = getattr(checkpoint_tuple, "checkpoint", {}) or {}
+    values = serialize_channel_values(checkpoint.get("channel_values", {}) or {})
+    messages = values.get("messages")
+    artifacts = values.get("artifacts")
+    return (
+        [m for m in messages if isinstance(m, dict)] if isinstance(messages, list) else [],
+        [a for a in artifacts if isinstance(a, str)] if isinstance(artifacts, list) else [],
+    )
+
+
+@public_router.get(
+    "/{share_code}",
+    response_model=PublicShareSnapshotResponse,
+    summary="Public read-only snapshot of a view-shared conversation",
+)
+async def get_public_share_snapshot(
+    share_code: str,
+    share_store: ThreadShareStore = Depends(get_thread_share_store),
+    thread_store: ThreadMetaStore = Depends(get_thread_store),
+    checkpointer=Depends(get_checkpointer),
+) -> PublicShareSnapshotResponse:
+    """Serve a frozen, read-only conversation. Anyone with the link can read it.
+
+    Only ``mode="view"`` shares are exposed; missing, revoked, or import-mode
+    codes all return 404 so the endpoint never reveals which case applies.
+    """
+    share = await share_store.get(share_code)
+    if share is None or share.get("revoked") or share.get("mode") != "view":
+        raise HTTPException(status_code=404, detail="Share not found")
+
+    meta = await thread_store.get(share["thread_id"], user_id=share["owner_user_id"])
+    if meta is None:
+        raise HTTPException(status_code=404, detail="The shared conversation no longer exists")
+
+    messages, artifacts = await _load_thread_snapshot(checkpointer, share["thread_id"])
+    return PublicShareSnapshotResponse(
+        share_code=share_code,
+        title=meta.get("display_name") or _UNTITLED,
+        mode="view",
+        messages=messages,
+        artifacts=artifacts,
+        created_at=share.get("created_at"),
+    )
+
+
+@public_router.get(
+    "/{share_code}/files/{path:path}",
+    summary="Public image attachment from a view-shared conversation",
+)
+async def get_public_share_file(
+    share_code: str,
+    path: str,
+    share_store: ThreadShareStore = Depends(get_thread_share_store),
+) -> FileResponse:
+    """Serve an image referenced by a view-shared conversation.
+
+    Restricted to images only — the public share page renders inline images,
+    but the endpoint must not become a way to read arbitrary thread files.
+    Non-image paths return 404 just like a missing file.
+    """
+    share = await share_store.get(share_code)
+    if share is None or share.get("revoked") or share.get("mode") != "view":
+        raise HTTPException(status_code=404, detail="Share not found")
+
+    # Resolve the virtual path inside the *owner's* thread directory.
+    try:
+        actual = get_paths().resolve_virtual_path(share["thread_id"], path, user_id=share["owner_user_id"])
+    except ValueError as exc:
+        status = 403 if "traversal" in str(exc) else 400
+        raise HTTPException(status_code=status, detail=str(exc))
+
+    actual_path = Path(actual)
+    if not actual_path.exists() or not actual_path.is_file():
+        raise HTTPException(status_code=404, detail="File not found")
+
+    mime_type, _ = mimetypes.guess_type(actual_path.name)
+    if not mime_type or not mime_type.startswith("image/"):
+        # Only images are public; everything else is treated as not found.
+        raise HTTPException(status_code=404, detail="File not found")
+
+    # SVG can carry scripts — serve it as a download so it can never execute
+    # as a top-level document in the app origin. Raster images render inline.
+    is_svg = mime_type == "image/svg+xml"
+    return FileResponse(
+        actual_path,
+        media_type=mime_type,
+        content_disposition_type="attachment" if is_svg else "inline",
+        headers={"Cache-Control": "public, max-age=300"},
+    )

offline-backend-20260512/backend/app/gateway/thread_copy.py

@@ -0,0 +1,67 @@
+"""Copy a conversation's LangGraph checkpoint state from one thread to another.
+
+Used by the conversation-sharing feature: redeeming a share link duplicates the
+sharer's threads into the redeemer's account. Each duplicated thread needs its
+full checkpoint history copied under a fresh ``thread_id``.
+
+The copy goes through the checkpointer's public API (``alist`` / ``aput`` /
+``aput_writes``) rather than raw SQL, so it is independent of the checkpoint
+table schema and works for every backend (SQLite, Postgres, in-memory).
+"""
+
+from __future__ import annotations
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+async def copy_thread_state(checkpointer, src_thread_id: str, dst_thread_id: str) -> bool:
+    """Duplicate every checkpoint of ``src_thread_id`` under ``dst_thread_id``.
+
+    Returns True when at least one checkpoint was copied, False when the source
+    thread has no checkpoints (e.g. a thread that was never run).
+
+    The destination keeps the source's checkpoint ids — they only need to be
+    unique within a ``thread_id``, and reusing them preserves the parent chain.
+    """
+    src_config = {"configurable": {"thread_id": src_thread_id}}
+    # alist yields newest-first; reverse so parents are written before children.
+    tuples = [t async for t in checkpointer.alist(src_config)]
+    if not tuples:
+        return False
+
+    copied = 0
+    for tup in reversed(tuples):
+        configurable = (tup.config or {}).get("configurable", {})
+        checkpoint_ns = configurable.get("checkpoint_ns", "") or ""
+        parent_id = ((tup.parent_config or {}).get("configurable", {}) or {}).get("checkpoint_id")
+
+        put_config: dict = {"configurable": {"thread_id": dst_thread_id, "checkpoint_ns": checkpoint_ns}}
+        if parent_id:
+            # aput reads the parent checkpoint id from the incoming config.
+            put_config["configurable"]["checkpoint_id"] = parent_id
+
+        new_versions = tup.checkpoint.get("channel_versions", {}) or {}
+        await checkpointer.aput(put_config, tup.checkpoint, tup.metadata or {}, new_versions)
+
+        # pending_writes is a list of (task_id, channel, value); aput_writes
+        # wants them grouped per task as (channel, value) pairs.
+        if tup.pending_writes:
+            by_task: dict[str, list] = {}
+            for task_id, channel, value in tup.pending_writes:
+                by_task.setdefault(task_id, []).append((channel, value))
+            checkpoint_id = tup.checkpoint.get("id")
+            for task_id, writes in by_task.items():
+                writes_config = {
+                    "configurable": {
+                        "thread_id": dst_thread_id,
+                        "checkpoint_ns": checkpoint_ns,
+                        "checkpoint_id": checkpoint_id,
+                    }
+                }
+                await checkpointer.aput_writes(writes_config, writes, task_id)
+        copied += 1
+
+    logger.info("Copied %d checkpoint(s) from thread %s to %s", copied, src_thread_id, dst_thread_id)
+    return copied > 0

offline-backend-20260512/backend/packages/harness/deerflow/community/aio_sandbox/aio_sandbox_provider.py

@@ -46,6 +46,24 @@ DEFAULT_CONTAINER_PREFIX = "deer-flow-sandbox"
 DEFAULT_IDLE_TIMEOUT = 600  # 10 minutes in seconds
 DEFAULT_REPLICAS = 3  # Maximum concurrent sandbox containers
 IDLE_CHECK_INTERVAL = 60  # Check every 60 seconds
+PACKAGE_MANAGER_ENV_KEYS = (
+    "PIP_INDEX_URL",
+    "PIP_EXTRA_INDEX_URL",
+    "PIP_TRUSTED_HOST",
+    "PIP_CERT",
+    "PIP_CLIENT_CERT",
+    "UV_INDEX_URL",
+    "UV_EXTRA_INDEX_URL",
+    "UV_DEFAULT_INDEX",
+    "UV_INDEX",
+    "UV_TRUSTED_HOST",
+    "HTTP_PROXY",
+    "HTTPS_PROXY",
+    "NO_PROXY",
+    "http_proxy",
+    "https_proxy",
+    "no_proxy",
+)
 
 
 def _lock_file_exclusive(lock_file) -> None:
@@ -144,7 +162,7 @@ class AioSandboxProvider(SandboxProvider):
         provisioner_url = self._config.get("provisioner_url")
         if provisioner_url:
             logger.info(f"Using remote sandbox backend with provisioner at {provisioner_url}")
-            return RemoteSandboxBackend(provisioner_url=provisioner_url)
+            return RemoteSandboxBackend(provisioner_url=provisioner_url, environment=self._config["environment"])
 
         logger.info("Using local container sandbox backend")
         return LocalContainerBackend(
@@ -181,6 +199,10 @@ class AioSandboxProvider(SandboxProvider):
     def _resolve_env_vars(env_config: dict[str, str]) -> dict[str, str]:
         """Resolve environment variable references (values starting with $)."""
         resolved = {}
+        for key in PACKAGE_MANAGER_ENV_KEYS:
+            value = os.environ.get(key)
+            if value:
+                resolved[key] = value
         for key, value in env_config.items():
             if isinstance(value, str) and value.startswith("$"):
                 env_name = value[1:]

offline-backend-20260512/backend/packages/harness/deerflow/community/aio_sandbox/remote_backend.py

@@ -40,14 +40,17 @@ class RemoteSandboxBackend(SandboxBackend):
           provisioner_url: http://provisioner:8002
     """
 
-    def __init__(self, provisioner_url: str):
+    def __init__(self, provisioner_url: str, environment: dict[str, str] | None = None):
         """Initialize with the provisioner service URL.
 
         Args:
             provisioner_url: URL of the provisioner service
                              (e.g., ``http://provisioner:8002``).
+            environment: Environment variables for sandbox pods. The remote
+                provisioner may ignore this field if it does not support it.
         """
         self._provisioner_url = provisioner_url.rstrip("/")
+        self._environment = environment or {}
 
     @property
     def provisioner_url(self) -> str:
@@ -94,6 +97,7 @@ class RemoteSandboxBackend(SandboxBackend):
                 json={
                     "sandbox_id": sandbox_id,
                     "thread_id": thread_id,
+                    "environment": self._environment,
                 },
                 timeout=30,
             )

offline-backend-20260512/backend/packages/harness/deerflow/config/database_config.py

@@ -14,6 +14,11 @@ busy timeout rather than failing immediately.
 Postgres mode: both use the same database URL but maintain independent
 connection pools with different lifecycles.
 
+MySQL mode: application ORM data uses MySQL. LangGraph's checkpointer does
+not have a built-in MySQL backend in this project, so deployments that choose
+MySQL for business tables should configure the legacy ``checkpointer:``
+section separately (usually sqlite) to preserve conversation checkpoints.
+
 Memory mode: checkpointer uses MemorySaver, app uses in-memory stores.
 No database is initialized.
 
@@ -38,9 +43,9 @@ from pydantic import BaseModel, Field
 
 
 class DatabaseConfig(BaseModel):
-    backend: Literal["memory", "sqlite", "postgres"] = Field(
+    backend: Literal["memory", "sqlite", "postgres", "mysql"] = Field(
         default="memory",
-        description=("Storage backend for both checkpointer and application data. 'memory' for development (no persistence across restarts), 'sqlite' for single-node deployment, 'postgres' for production multi-node deployment."),
+        description=("Storage backend for application data. 'memory' for development (no persistence across restarts), 'sqlite' for single-node deployment, 'postgres' for production multi-node deployment, 'mysql' for MySQL-backed business tables."),
     )
     sqlite_dir: str = Field(
         default=".deer-flow/data",
@@ -55,13 +60,22 @@ class DatabaseConfig(BaseModel):
             "(the +asyncpg driver suffix is added automatically where needed)."
         ),
     )
+    mysql_url: str = Field(
+        default="",
+        description=(
+            "MySQL connection URL for the application ORM. "
+            "Use $MYSQL_DATABASE_URL in config.yaml to reference .env. "
+            "Example: mysql+asyncmy://user:pass@host:3306/deerflow?charset=utf8mb4. "
+            "If mysql:// is provided, the +asyncmy driver suffix is added automatically."
+        ),
+    )
     echo_sql: bool = Field(
         default=False,
         description="Echo all SQL statements to log (debug only).",
     )
     pool_size: int = Field(
         default=5,
-        description="Connection pool size for the app ORM engine (postgres only).",
+        description="Connection pool size for the app ORM engine (postgres/mysql only).",
     )
 
     # -- Derived helpers (not user-configured) --
@@ -99,4 +113,11 @@ class DatabaseConfig(BaseModel):
             if url.startswith("postgresql://"):
                 url = url.replace("postgresql://", "postgresql+asyncpg://", 1)
             return url
+        if self.backend == "mysql":
+            url = self.mysql_url
+            if not url:
+                raise ValueError("database.mysql_url is required for backend='mysql'")
+            if url.startswith("mysql://"):
+                url = url.replace("mysql://", "mysql+asyncmy://", 1)
+            return url
         raise ValueError(f"No SQLAlchemy URL for backend={self.backend!r}")

offline-backend-20260512/backend/packages/harness/deerflow/persistence/agents/model.py

@@ -4,10 +4,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import Boolean, DateTime, String
+from sqlalchemy import Boolean, String
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime
 
 
 class AgentRow(Base):
@@ -16,9 +17,9 @@ class AgentRow(Base):
     # Stored as a plain string so the same id can be used as the filesystem
     # directory name under {base_dir}/agents/{id}/.
     id: Mapped[str] = mapped_column(String(64), primary_key=True)
-    name: Mapped[str] = mapped_column(String(256), nullable=False, index=True)
+    name: Mapped[str] = mapped_column(String(191), nullable=False, index=True)
     description: Mapped[str] = mapped_column(String(1024), nullable=False, default="")
     user_id: Mapped[str | None] = mapped_column(String(64), nullable=True, index=True)
     published: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False, index=True)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))

offline-backend-20260512/backend/packages/harness/deerflow/persistence/engine.py

@@ -12,6 +12,9 @@ from __future__ import annotations
 
 import json
 import logging
+import sys
+from importlib.util import find_spec
+from pathlib import Path
 
 from sqlalchemy.ext.asyncio import AsyncEngine, AsyncSession, async_sessionmaker, create_async_engine
 
@@ -27,6 +30,32 @@ _engine: AsyncEngine | None = None
 _session_factory: async_sessionmaker[AsyncSession] | None = None
 
 
+def _add_runtime_vendor_path() -> None:
+    """Allow offline deployments to place optional DB drivers in DEER_FLOW_HOME.
+
+    The offline Docker image keeps the Python environment inside the image, while
+    ``/app/backend/.deer-flow`` is a persistent bind mount.  The MySQL switch
+    script installs ``asyncmy`` into ``{DEER_FLOW_HOME}/python-vendor`` so the
+    unchanged startup script can still import it after container recreation.
+    """
+    try:
+        from deerflow.config.runtime_paths import runtime_home
+
+        vendor_dir = runtime_home() / "python-vendor"
+    except Exception:
+        vendor_dir = Path(".deer-flow/python-vendor").resolve()
+
+    vendor = str(vendor_dir)
+    if vendor_dir.exists() and vendor not in sys.path:
+        sys.path.insert(0, vendor)
+
+
+def _mysql_driver_name(url: str) -> str:
+    if url.startswith("mysql+aiomysql://"):
+        return "aiomysql"
+    return "asyncmy"
+
+
 async def _auto_create_postgres_db(url: str) -> None:
     """Connect to the ``postgres`` maintenance DB and CREATE DATABASE.
 
@@ -65,8 +94,8 @@ async def init_engine(
     """Create the async engine and session factory, then auto-create tables.
 
     Args:
-        backend: "memory", "sqlite", or "postgres".
+        backend: "memory", "sqlite", "postgres", or "mysql".
-        url: SQLAlchemy async URL (for sqlite/postgres).
+        url: SQLAlchemy async URL (for sqlite/postgres/mysql).
         echo: Echo SQL to log.
         pool_size: Postgres connection pool size.
         sqlite_dir: Directory to create for SQLite (ensured to exist).
@@ -82,6 +111,15 @@ async def init_engine(
             import asyncpg  # noqa: F401
         except ImportError:
             raise ImportError("database.backend is set to 'postgres' but asyncpg is not installed.\nInstall it with:\n    uv sync --extra postgres\nOr switch to backend: sqlite in config.yaml for single-node deployment.") from None
+    if backend == "mysql":
+        _add_runtime_vendor_path()
+        driver = _mysql_driver_name(url)
+        if find_spec(driver) is None:
+            raise ImportError(
+                "database.backend is set to 'mysql' but the MySQL async driver is not installed.\n"
+                "Install asyncmy, or run switch_database_to_mysql.sh so it can install asyncmy into "
+                f"{Path('.deer-flow/python-vendor')} from the offline wheelhouse."
+            )
 
     if backend == "sqlite":
         import os
@@ -120,6 +158,15 @@ async def init_engine(
             pool_pre_ping=True,
             json_serializer=_json_serializer,
         )
+    elif backend == "mysql":
+        _engine = create_async_engine(
+            url,
+            echo=echo,
+            pool_size=pool_size,
+            pool_pre_ping=True,
+            pool_recycle=1800,
+            json_serializer=_json_serializer,
+        )
     else:
         raise ValueError(f"Unknown persistence backend: {backend!r}")
 

offline-backend-20260512/backend/packages/harness/deerflow/persistence/feedback/model.py

@@ -4,10 +4,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import DateTime, String, Text, UniqueConstraint
+from sqlalchemy import String, Text, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime
 
 
 class FeedbackRow(Base):
@@ -29,4 +30,4 @@ class FeedbackRow(Base):
     comment: Mapped[str | None] = mapped_column(Text)
     # Optional text feedback from the user
 
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))

offline-backend-20260512/backend/packages/harness/deerflow/persistence/llm_metrics/model.py

@@ -4,10 +4,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import DateTime, Float, Integer, String, Text
+from sqlalchemy import Float, Integer, String, Text
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime
 
 
 class LlmCallMetricRow(Base):
@@ -18,7 +19,7 @@ class LlmCallMetricRow(Base):
     id: Mapped[str] = mapped_column(String(64), primary_key=True)
     # Wall-clock time the LLM call ended. Indexed because admin views always
     # sort/filter by recency.
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC), index=True)
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC), index=True)
 
     user_id: Mapped[str | None] = mapped_column(String(64), index=True)
     thread_id: Mapped[str | None] = mapped_column(String(64), index=True)

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/env.py

@@ -45,10 +45,11 @@ def run_migrations_offline() -> None:
 
 
 def do_run_migrations(connection):
+    render_as_batch = connection.dialect.name == "sqlite"
     context.configure(
         connection=connection,
         target_metadata=target_metadata,
-        render_as_batch=True,  # Required for SQLite ALTER TABLE support
+        render_as_batch=render_as_batch,  # Required for SQLite ALTER TABLE support
     )
     with context.begin_transaction():
         context.run_migrations()

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260512_01_scheduled_task_run_result.py

@@ -11,6 +11,8 @@ from alembic import op
 from sqlalchemy import inspect
 import sqlalchemy as sa
 
+from deerflow.persistence.types import PortableJSON
+
 
 revision = "20260512_01"
 down_revision = None
@@ -25,7 +27,7 @@ def _has_column(table_name: str, column_name: str) -> bool:
 
 def upgrade() -> None:
     if not _has_column("scheduled_task_runs", "result_json"):
-        op.add_column("scheduled_task_runs", sa.Column("result_json", sa.JSON(), nullable=True))
+        op.add_column("scheduled_task_runs", sa.Column("result_json", PortableJSON(), nullable=True))
 
 
 def downgrade() -> None:

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260513_01_agents_table.py

@@ -30,7 +30,7 @@ def upgrade() -> None:
     op.create_table(
         "agents",
         sa.Column("id", sa.String(64), primary_key=True),
-        sa.Column("name", sa.String(256), nullable=False),
+        sa.Column("name", sa.String(191), nullable=False),
         sa.Column("description", sa.String(1024), nullable=False, server_default=""),
         sa.Column("user_id", sa.String(64), nullable=True),
         sa.Column("published", sa.Boolean(), nullable=False, server_default=sa.false()),

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260515_01_tags_tables.py

@@ -28,7 +28,7 @@ def upgrade() -> None:
         op.create_table(
             "tags",
             sa.Column("id", sa.String(64), primary_key=True),
-            sa.Column("name", sa.String(256), nullable=False),
+            sa.Column("name", sa.String(159), nullable=False),
             sa.Column("tag_type", sa.String(32), nullable=False),
             sa.Column("color", sa.String(16), nullable=False, server_default="gray"),
             sa.Column("description", sa.String(1024), nullable=False, server_default=""),

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260517_02_article_types.py

@@ -76,29 +76,39 @@ def upgrade() -> None:
             sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
         )
 
-    # 预置默认文章类型（幂等，跳过已存在的 key）
+    # 预置默认文章类型（幂等，跳过已存在的 key）。
+    # 用 SQLAlchemy Core 构造而非裸 SQL：``key`` 是 MySQL 保留字，裸
+    # ``SELECT key`` 会触发 1064 语法错误。Core 编译器会按方言自动给保留字
+    # 加引号（MySQL 反引号 / Postgres 双引号），保持跨后端可移植。
+    article_types = sa.table(
+        "ai_writing_article_types",
+        sa.column("id", sa.String),
+        sa.column("key", sa.String),
+        sa.column("label", sa.String),
+        sa.column("description", sa.Text),
+        sa.column("prompt_hint", sa.Text),
+        sa.column("default_word_count", sa.Integer),
+        sa.column("sort_order", sa.Integer),
+        sa.column("created_at", sa.DateTime),
+        sa.column("updated_at", sa.DateTime),
+    )
     conn = op.get_bind()
-    existing_keys = {row[0] for row in conn.execute(sa.text("SELECT key FROM ai_writing_article_types")).fetchall()}
+    existing_keys = {row[0] for row in conn.execute(sa.select(article_types.c.key)).fetchall()}
     now = datetime.now(UTC)
     for t in _DEFAULT_TYPES:
         if t["key"] not in existing_keys:
             conn.execute(
-                sa.text(
+                article_types.insert().values(
-                    "INSERT INTO ai_writing_article_types "
+                    id=str(uuid.uuid4()),
-                    "(id, key, label, description, prompt_hint, default_word_count, sort_order, created_at, updated_at) "
+                    key=t["key"],
-                    "VALUES (:id, :key, :label, :description, :prompt_hint, :default_word_count, :sort_order, :created_at, :updated_at)"
+                    label=t["label"],
-                ),
+                    description=t["description"],
-                {
+                    prompt_hint=t["prompt_hint"],
-                    "id": str(uuid.uuid4()),
+                    default_word_count=t["default_word_count"],
-                    "key": t["key"],
+                    sort_order=t["sort_order"],
-                    "label": t["label"],
+                    created_at=now,
-                    "description": t["description"],
+                    updated_at=now,
-                    "prompt_hint": t["prompt_hint"],
+                )
-                    "default_word_count": t["default_word_count"],
-                    "sort_order": t["sort_order"],
-                    "created_at": now,
-                    "updated_at": now,
-                },
             )
 
 

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260518_02_thread_shares.py

@@ -0,0 +1,53 @@
+"""Create thread_shares table (per-conversation share links).
+
+Revision ID: 20260518_02
+Revises: 20260518_01
+Create Date: 2026-05-18
+"""
+
+from __future__ import annotations
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy import inspect
+
+
+revision = "20260518_02"
+down_revision = "20260518_01"
+branch_labels = None
+depends_on = None
+
+
+def _has_table(table_name: str) -> bool:
+    inspector = inspect(op.get_bind())
+    return table_name in inspector.get_table_names()
+
+
+def _has_column(table_name: str, column_name: str) -> bool:
+    if not _has_table(table_name):
+        return False
+    inspector = inspect(op.get_bind())
+    return any(col["name"] == column_name for col in inspector.get_columns(table_name))
+
+
+def upgrade() -> None:
+    if not _has_table("thread_shares"):
+        op.create_table(
+            "thread_shares",
+            sa.Column("share_code", sa.String(32), primary_key=True),
+            sa.Column("owner_user_id", sa.String(64), nullable=False),
+            sa.Column("thread_id", sa.String(64), nullable=False),
+            sa.Column("revoked", sa.Boolean(), nullable=False, server_default=sa.false()),
+            sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
+        )
+        op.create_index("ix_thread_shares_owner_user_id", "thread_shares", ["owner_user_id"])
+        op.create_index("ix_thread_shares_thread_id", "thread_shares", ["thread_id"])
+    elif not _has_column("thread_shares", "thread_id"):
+        # An earlier all-conversations variant of this table — add the column.
+        op.add_column("thread_shares", sa.Column("thread_id", sa.String(64), nullable=False, server_default=""))
+        op.create_index("ix_thread_shares_thread_id", "thread_shares", ["thread_id"])
+
+
+def downgrade() -> None:
+    if _has_table("thread_shares"):
+        op.drop_table("thread_shares")

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260518_03_thread_shares_thread_id.py

@@ -0,0 +1,57 @@
+"""Ensure thread_shares.thread_id exists (per-conversation share links).
+
+Standalone migration so databases that already applied an earlier
+all-conversations variant of ``20260518_02`` (which had no ``thread_id``
+column) get the column added. Idempotent — a no-op when the column is
+already present.
+
+Revision ID: 20260518_03
+Revises: 20260518_02
+Create Date: 2026-05-18
+"""
+
+from __future__ import annotations
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy import inspect
+
+
+revision = "20260518_03"
+down_revision = "20260518_02"
+branch_labels = None
+depends_on = None
+
+
+def _has_table(table_name: str) -> bool:
+    inspector = inspect(op.get_bind())
+    return table_name in inspector.get_table_names()
+
+
+def _has_column(table_name: str, column_name: str) -> bool:
+    if not _has_table(table_name):
+        return False
+    inspector = inspect(op.get_bind())
+    return any(col["name"] == column_name for col in inspector.get_columns(table_name))
+
+
+def _has_index(table_name: str, index_name: str) -> bool:
+    if not _has_table(table_name):
+        return False
+    inspector = inspect(op.get_bind())
+    return any(ix["name"] == index_name for ix in inspector.get_indexes(table_name))
+
+
+def upgrade() -> None:
+    if not _has_table("thread_shares"):
+        # Fresh database — 20260518_02 already created the table with thread_id.
+        return
+    if not _has_column("thread_shares", "thread_id"):
+        op.add_column("thread_shares", sa.Column("thread_id", sa.String(64), nullable=False, server_default=""))
+    if not _has_index("thread_shares", "ix_thread_shares_thread_id"):
+        op.create_index("ix_thread_shares_thread_id", "thread_shares", ["thread_id"])
+
+
+def downgrade() -> None:
+    # Leave the column in place — dropping it would break the share feature.
+    pass

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260518_04_scheduled_task_run_retry.py

@@ -0,0 +1,39 @@
+"""Add retry_count to scheduled_task_runs.
+
+Tracks how many recovery attempts a run has consumed so the scheduler can
+cap retries on stuck/timed-out runs.
+
+Revision ID: 20260518_04
+Revises: 20260518_03
+Create Date: 2026-05-18
+"""
+
+from __future__ import annotations
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy import inspect
+
+
+revision = "20260518_04"
+down_revision = "20260518_03"
+branch_labels = None
+depends_on = None
+
+
+def _has_column(table_name: str, column_name: str) -> bool:
+    inspector = inspect(op.get_bind())
+    return any(column["name"] == column_name for column in inspector.get_columns(table_name))
+
+
+def upgrade() -> None:
+    if not _has_column("scheduled_task_runs", "retry_count"):
+        op.add_column(
+            "scheduled_task_runs",
+            sa.Column("retry_count", sa.Integer(), nullable=False, server_default="0"),
+        )
+
+
+def downgrade() -> None:
+    if _has_column("scheduled_task_runs", "retry_count"):
+        op.drop_column("scheduled_task_runs", "retry_count")

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260518_05_thread_share_mode.py

@@ -0,0 +1,44 @@
+"""Add mode to thread_shares.
+
+Distinguishes "import" shares (recipient copies the conversation into their
+account) from "view" shares (a public, read-only static page).
+
+Revision ID: 20260518_05
+Revises: 20260518_04
+Create Date: 2026-05-18
+"""
+
+from __future__ import annotations
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy import inspect
+
+
+revision = "20260518_05"
+down_revision = "20260518_04"
+branch_labels = None
+depends_on = None
+
+
+def _has_column(table_name: str, column_name: str) -> bool:
+    inspector = inspect(op.get_bind())
+    if table_name not in inspector.get_table_names():
+        return True  # table missing entirely — skip (created with the column)
+    return any(column["name"] == column_name for column in inspector.get_columns(table_name))
+
+
+def upgrade() -> None:
+    if not _has_column("thread_shares", "mode"):
+        op.add_column(
+            "thread_shares",
+            sa.Column("mode", sa.String(16), nullable=False, server_default="import"),
+        )
+
+
+def downgrade() -> None:
+    inspector = inspect(op.get_bind())
+    if "thread_shares" in inspector.get_table_names() and any(
+        column["name"] == "mode" for column in inspector.get_columns("thread_shares")
+    ):
+        op.drop_column("thread_shares", "mode")

offline-backend-20260512/backend/packages/harness/deerflow/persistence/migrations/versions/20260518_06_merge_heads.py

@@ -0,0 +1,28 @@
+"""Merge the ai-writing and thread-shares migration heads.
+
+Two independent migration branches diverged from ``20260515_01``: the AI
+writing feature (``20260517_01..03``) and the thread-shares / scheduled-task
+work (``20260518_01..05``). Merging the two branches into one repo left Alembic
+with multiple heads, so ``upgrade head`` failed. This is a no-op merge revision
+that joins both lineages — it changes no schema.
+
+Revision ID: 20260518_06
+Revises: 20260517_03, 20260518_05
+Create Date: 2026-05-18
+"""
+
+from __future__ import annotations
+
+
+revision = "20260518_06"
+down_revision = ("20260517_03", "20260518_05")
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    pass
+
+
+def downgrade() -> None:
+    pass

offline-backend-20260512/backend/packages/harness/deerflow/persistence/models/__init__.py

@@ -32,6 +32,7 @@ from deerflow.persistence.scheduled_tasks.model import (
 from deerflow.persistence.skills.model import SkillRow
 from deerflow.persistence.tags.model import TagAssignmentRow, TagRow
 from deerflow.persistence.thread_meta.model import ThreadMetaRow
+from deerflow.persistence.thread_shares.model import ThreadShareRow
 from deerflow.persistence.user.model import UserRow
 
 __all__ = [
@@ -51,5 +52,6 @@ __all__ = [
     "TagAssignmentRow",
     "TagRow",
     "ThreadMetaRow",
+    "ThreadShareRow",
     "UserRow",
 ]

offline-backend-20260512/backend/packages/harness/deerflow/persistence/models/run_event.py

@@ -4,10 +4,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import JSON, DateTime, Index, String, Text, UniqueConstraint
+from sqlalchemy import Index, String, Text, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime, PortableJSON
 
 
 class RunEventRow(Base):
@@ -24,9 +25,9 @@ class RunEventRow(Base):
     category: Mapped[str] = mapped_column(String(16), nullable=False)
     # "message" | "trace" | "lifecycle"
     content: Mapped[str] = mapped_column(Text, default="")
-    event_metadata: Mapped[dict] = mapped_column(JSON, default=dict)
+    event_metadata: Mapped[dict] = mapped_column(PortableJSON(), default=dict)
     seq: Mapped[int] = mapped_column(nullable=False)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))
 
     __table_args__ = (
         UniqueConstraint("thread_id", "seq", name="uq_events_thread_seq"),

offline-backend-20260512/backend/packages/harness/deerflow/persistence/notifications/model.py

@@ -5,10 +5,11 @@ from __future__ import annotations
 from datetime import UTC, datetime
 from typing import Any
 
-from sqlalchemy import JSON, Boolean, DateTime, String, Text
+from sqlalchemy import Boolean, String, Text
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime, PortableJSON
 
 
 class NotificationRow(Base):
@@ -19,6 +20,6 @@ class NotificationRow(Base):
     type: Mapped[str] = mapped_column(String(64), nullable=False)
     title: Mapped[str] = mapped_column(String(256), nullable=False, default="")
     body: Mapped[str] = mapped_column(Text, nullable=False, default="")
-    payload: Mapped[dict[str, Any]] = mapped_column(JSON, nullable=False, default=dict)
+    payload: Mapped[dict[str, Any]] = mapped_column(PortableJSON(), nullable=False, default=dict)
     read: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False, index=True)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC), index=True)
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC), index=True)

offline-backend-20260512/backend/packages/harness/deerflow/persistence/recommended_questions/model.py

@@ -4,10 +4,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import DateTime, Integer, String, Text
+from sqlalchemy import Integer, String, Text
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime
 
 
 class RecommendedQuestionRow(Base):
@@ -17,5 +18,5 @@ class RecommendedQuestionRow(Base):
     title: Mapped[str] = mapped_column(String(256), nullable=False)
     content: Mapped[str] = mapped_column(Text, nullable=False)
     sort_order: Mapped[int] = mapped_column(Integer, nullable=False, default=0, index=True)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))

offline-backend-20260512/backend/packages/harness/deerflow/persistence/run/model.py

@@ -4,10 +4,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import JSON, DateTime, Index, String, Text
+from sqlalchemy import Index, String, Text
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime, PortableJSON
 
 
 class RunRow(Base):
@@ -22,8 +23,8 @@ class RunRow(Base):
 
     model_name: Mapped[str | None] = mapped_column(String(128))
     multitask_strategy: Mapped[str] = mapped_column(String(20), default="reject")
-    metadata_json: Mapped[dict] = mapped_column(JSON, default=dict)
+    metadata_json: Mapped[dict] = mapped_column(PortableJSON(), default=dict)
-    kwargs_json: Mapped[dict] = mapped_column(JSON, default=dict)
+    kwargs_json: Mapped[dict] = mapped_column(PortableJSON(), default=dict)
     error: Mapped[str | None] = mapped_column(Text)
 
     # Convenience fields (for listing pages without querying RunEventStore)
@@ -43,7 +44,7 @@ class RunRow(Base):
     # Follow-up association
     follow_up_to_run_id: Mapped[str | None] = mapped_column(String(64))
 
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
 
     __table_args__ = (Index("ix_runs_thread_status", "thread_id", "status"),)

offline-backend-20260512/backend/packages/harness/deerflow/persistence/scheduled_tasks/base.py

@@ -36,6 +36,35 @@ class ScheduledTaskStore(ABC):
     async def due_tasks(self, now: datetime, *, limit: int = 20) -> list[dict[str, Any]]:
         raise NotImplementedError
 
+    # --- Admin (cross-user) ---
+
+    @abstractmethod
+    async def list_all_tasks(self) -> list[dict[str, Any]]:
+        """Return every task across all users. Admin-only callers."""
+        raise NotImplementedError
+
+    @abstractmethod
+    async def update_task_any(self, task_id: str, data: dict[str, Any]) -> dict[str, Any] | None:
+        """Update a task by id without restricting by owner. Admin-only callers."""
+        raise NotImplementedError
+
+    @abstractmethod
+    async def delete_task_any(self, task_id: str) -> bool:
+        """Delete a task by id without restricting by owner. Admin-only callers."""
+        raise NotImplementedError
+
+    @abstractmethod
+    async def list_runs_any(self, task_id: str, *, limit: int = 50) -> list[dict[str, Any]]:
+        """Return runs for a task without restricting by owner. Admin-only callers."""
+        raise NotImplementedError
+
+    @abstractmethod
+    async def list_stuck_runs(self, cutoff: datetime, *, limit: int = 50) -> list[dict[str, Any]]:
+        """Return runs still in a non-terminal state whose ``started_at`` is older
+        than ``cutoff``. Used by the scheduler watchdog to recover runs that hung
+        or were orphaned by a service restart."""
+        raise NotImplementedError
+
     @abstractmethod
     async def create_run_once(self, data: dict[str, Any]) -> dict[str, Any] | None:
         raise NotImplementedError
@@ -56,6 +85,11 @@ class ScheduledTaskStore(ABC):
     async def delete_run(self, run_id: str, user_id: str) -> bool:
         raise NotImplementedError
 
+    @abstractmethod
+    async def delete_run_any(self, run_id: str) -> bool:
+        """Delete a run by id without restricting by owner. Admin-only callers."""
+        raise NotImplementedError
+
     @abstractmethod
     async def get_delivery_profile(self, user_id: str) -> dict[str, Any]:
         raise NotImplementedError

offline-backend-20260512/backend/packages/harness/deerflow/persistence/scheduled_tasks/memory.py

@@ -59,6 +59,37 @@ class MemoryScheduledTaskStore(ScheduledTaskStore):
         due.sort(key=lambda task: task["next_run_at"])
         return due[:limit]
 
+    # --- Admin (cross-user) ---
+
+    async def list_all_tasks(self) -> list[dict[str, Any]]:
+        return [dict(task) for task in self._tasks.values()]
+
+    async def update_task_any(self, task_id: str, data: dict[str, Any]) -> dict[str, Any] | None:
+        task = self._tasks.get(task_id)
+        if task is None:
+            return None
+        task.update(data)
+        return dict(task)
+
+    async def delete_task_any(self, task_id: str) -> bool:
+        return self._tasks.pop(task_id, None) is not None
+
+    async def list_runs_any(self, task_id: str, *, limit: int = 50) -> list[dict[str, Any]]:
+        runs = [dict(run) for run in self._runs.values() if run["task_id"] == task_id]
+        runs.sort(key=lambda run: run.get("scheduled_for"), reverse=True)
+        return runs[:limit]
+
+    async def list_stuck_runs(self, cutoff: datetime, *, limit: int = 50) -> list[dict[str, Any]]:
+        stuck = [
+            dict(run)
+            for run in self._runs.values()
+            if run.get("status") in ("running", "pending")
+            and run.get("started_at") is not None
+            and run["started_at"] <= cutoff
+        ]
+        stuck.sort(key=lambda run: run["started_at"])
+        return stuck[:limit]
+
     async def create_run_once(self, data: dict[str, Any]) -> dict[str, Any] | None:
         key = (data["task_id"], data["scheduled_for"].isoformat())
         if key in self._runs_by_key:
@@ -90,11 +121,21 @@ class MemoryScheduledTaskStore(ScheduledTaskStore):
         run = self._runs.get(run_id)
         if run is None or run["user_id"] != user_id:
             return False
-        self._runs.pop(run_id, None)
+        self._drop_run(run)
+        return True
+
+    async def delete_run_any(self, run_id: str) -> bool:
+        run = self._runs.get(run_id)
+        if run is None:
+            return False
+        self._drop_run(run)
+        return True
+
+    def _drop_run(self, run: dict[str, Any]) -> None:
+        self._runs.pop(run["id"], None)
         scheduled_for = run.get("scheduled_for")
         if hasattr(scheduled_for, "isoformat"):
             self._runs_by_key.discard((run["task_id"], scheduled_for.isoformat()))
-        return True
 
     async def get_delivery_profile(self, user_id: str) -> dict[str, Any]:
         return dict(self._profiles.get(user_id) or {"user_id": user_id, "element_user_id": None})

offline-backend-20260512/backend/packages/harness/deerflow/persistence/scheduled_tasks/model.py

@@ -4,10 +4,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import JSON, Boolean, DateTime, String, Text, UniqueConstraint
+from sqlalchemy import Boolean, Integer, String, Text, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime, PortableJSON
 
 
 class SchedulerThreadRow(Base):
@@ -15,8 +16,8 @@ class SchedulerThreadRow(Base):
 
     user_id: Mapped[str] = mapped_column(String(64), primary_key=True)
     thread_id: Mapped[str] = mapped_column(String(64), unique=True, index=True)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
 
 
 class ScheduledTaskRow(Base):
@@ -29,20 +30,20 @@ class ScheduledTaskRow(Base):
     source_thread_id: Mapped[str | None] = mapped_column(String(64), index=True)
     source_agent_name: Mapped[str | None] = mapped_column(String(128), index=True)
     execution_agent_name: Mapped[str | None] = mapped_column(String(128), index=True)
-    name: Mapped[str] = mapped_column(String(256))
+    name: Mapped[str] = mapped_column(String(127))
     prompt: Mapped[str] = mapped_column(Text)
     schedule_text: Mapped[str] = mapped_column(String(256))
     cron_expr: Mapped[str] = mapped_column(String(128))
     timezone: Mapped[str] = mapped_column(String(64), default="UTC")
     enabled: Mapped[bool] = mapped_column(Boolean, default=True)
-    next_run_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), index=True)
+    next_run_at: Mapped[datetime | None] = mapped_column(BeijingDateTime(), index=True)
-    last_run_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    last_run_at: Mapped[datetime | None] = mapped_column(BeijingDateTime())
     last_status: Mapped[str | None] = mapped_column(String(32))
-    execution_context_json: Mapped[dict] = mapped_column(JSON, default=dict)
+    execution_context_json: Mapped[dict] = mapped_column(PortableJSON(), default=dict)
     published: Mapped[bool] = mapped_column(Boolean, default=False, index=True)
-    published_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    published_at: Mapped[datetime | None] = mapped_column(BeijingDateTime())
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
 
 
 class ScheduledTaskSubscriptionRow(Base):
@@ -53,8 +54,8 @@ class ScheduledTaskSubscriptionRow(Base):
     task_id: Mapped[str] = mapped_column(String(64), index=True)
     user_id: Mapped[str] = mapped_column(String(64), index=True)
     notify_element: Mapped[bool] = mapped_column(Boolean, default=False)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
 
 
 class ScheduledTaskRunRow(Base):
@@ -66,21 +67,25 @@ class ScheduledTaskRunRow(Base):
     user_id: Mapped[str] = mapped_column(String(64), index=True)
     scheduler_thread_id: Mapped[str] = mapped_column(String(64), index=True)
     agent_run_id: Mapped[str | None] = mapped_column(String(64), index=True)
-    scheduled_for: Mapped[datetime] = mapped_column(DateTime(timezone=True), index=True)
+    scheduled_for: Mapped[datetime] = mapped_column(BeijingDateTime(), index=True)
-    started_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    started_at: Mapped[datetime | None] = mapped_column(BeijingDateTime())
-    finished_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    finished_at: Mapped[datetime | None] = mapped_column(BeijingDateTime())
     status: Mapped[str] = mapped_column(String(32), default="pending")
     error: Mapped[str | None] = mapped_column(Text)
-    result_json: Mapped[dict | None] = mapped_column(JSON, default=dict)
+    result_json: Mapped[dict | None] = mapped_column(PortableJSON(), default=dict)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    # Number of recovery attempts made after the first try. A run is retried
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    # when it overruns the per-attempt timeout or is found orphaned in the
+    # "running" state (e.g. after a service restart). See ScheduledTaskService.
+    retry_count: Mapped[int] = mapped_column(Integer, default=0, server_default="0")
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
 
 
 class ScheduledTaskDeliveryProfileRow(Base):
     __tablename__ = "scheduled_task_delivery_profiles"
 
     user_id: Mapped[str] = mapped_column(String(64), primary_key=True)
-    element_user_id: Mapped[str | None] = mapped_column(String(256), index=True)
+    element_user_id: Mapped[str | None] = mapped_column(String(191), index=True)
     element_room_id: Mapped[str | None] = mapped_column(String(256), nullable=True)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))

offline-backend-20260512/backend/packages/harness/deerflow/persistence/scheduled_tasks/sql.py

@@ -124,6 +124,60 @@ class ScheduledTaskRepository(ScheduledTaskStore):
             )
             return [_to_dict(row) for row in result.scalars()]
 
+    # --- Admin (cross-user) ---
+
+    async def list_all_tasks(self) -> list[dict[str, Any]]:
+        async with self._sf() as session:
+            result = await session.execute(select(ScheduledTaskRow).order_by(ScheduledTaskRow.created_at.desc()))
+            return [_to_dict(row) for row in result.scalars()]
+
+    async def update_task_any(self, task_id: str, data: dict[str, Any]) -> dict[str, Any] | None:
+        async with self._sf() as session:
+            row = await session.get(ScheduledTaskRow, task_id)
+            if row is None:
+                return None
+            for key, value in data.items():
+                attr = "execution_context_json" if key == "execution_context" else key
+                if hasattr(row, attr):
+                    setattr(row, attr, value)
+            row.updated_at = datetime.now(UTC)
+            await session.commit()
+            await session.refresh(row)
+            return _to_dict(row)
+
+    async def delete_task_any(self, task_id: str) -> bool:
+        async with self._sf() as session:
+            row = await session.get(ScheduledTaskRow, task_id)
+            if row is None:
+                return False
+            await session.delete(row)
+            await session.commit()
+            return True
+
+    async def list_runs_any(self, task_id: str, *, limit: int = 50) -> list[dict[str, Any]]:
+        async with self._sf() as session:
+            result = await session.execute(
+                select(ScheduledTaskRunRow)
+                .where(ScheduledTaskRunRow.task_id == task_id)
+                .order_by(ScheduledTaskRunRow.scheduled_for.desc())
+                .limit(limit)
+            )
+            return [_to_dict(row) for row in result.scalars()]
+
+    async def list_stuck_runs(self, cutoff: datetime, *, limit: int = 50) -> list[dict[str, Any]]:
+        async with self._sf() as session:
+            result = await session.execute(
+                select(ScheduledTaskRunRow)
+                .where(
+                    ScheduledTaskRunRow.status.in_(("running", "pending")),
+                    ScheduledTaskRunRow.started_at.is_not(None),
+                    ScheduledTaskRunRow.started_at <= cutoff,
+                )
+                .order_by(ScheduledTaskRunRow.started_at.asc())
+                .limit(limit)
+            )
+            return [_to_dict(row) for row in result.scalars()]
+
     async def create_run_once(self, data: dict[str, Any]) -> dict[str, Any] | None:
         row = ScheduledTaskRunRow(
             id=data["id"],
@@ -180,6 +234,15 @@ class ScheduledTaskRepository(ScheduledTaskStore):
             await session.commit()
             return True
 
+    async def delete_run_any(self, run_id: str) -> bool:
+        async with self._sf() as session:
+            row = await session.get(ScheduledTaskRunRow, run_id)
+            if row is None:
+                return False
+            await session.delete(row)
+            await session.commit()
+            return True
+
     async def get_delivery_profile(self, user_id: str) -> dict[str, Any]:
         async with self._sf() as session:
             row = await session.get(ScheduledTaskDeliveryProfileRow, user_id)
@@ -232,7 +295,14 @@ class ScheduledTaskRepository(ScheduledTaskStore):
             result = await session.execute(
                 select(ScheduledTaskRow)
                 .where(ScheduledTaskRow.published.is_(True))
-                .order_by(ScheduledTaskRow.published_at.desc().nullslast(), ScheduledTaskRow.created_at.desc())
+                # ``NULLS LAST`` is unsupported by MySQL — sort by an
+                # ``IS NULL`` flag instead (False<True ⇒ non-null rows first),
+                # which is portable across mysql/sqlite/postgres.
+                .order_by(
+                    ScheduledTaskRow.published_at.is_(None),
+                    ScheduledTaskRow.published_at.desc(),
+                    ScheduledTaskRow.created_at.desc(),
+                )
                 .offset(max(0, offset))
                 .limit(max(1, limit))
             )

offline-backend-20260512/backend/packages/harness/deerflow/persistence/tags/model.py

@@ -14,10 +14,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import DateTime, String, UniqueConstraint
+from sqlalchemy import String, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime
 
 # Allowed tag/target types. Kept here so persistence + API share one source.
 TAG_TYPES: tuple[str, ...] = ("agent", "skill", "scheduled_task")
@@ -28,12 +29,12 @@ class TagRow(Base):
     __table_args__ = (UniqueConstraint("tag_type", "name", name="uq_tags_type_name"),)
 
     id: Mapped[str] = mapped_column(String(64), primary_key=True)
-    name: Mapped[str] = mapped_column(String(256), nullable=False)
+    name: Mapped[str] = mapped_column(String(159), nullable=False)
     tag_type: Mapped[str] = mapped_column(String(32), nullable=False, index=True)
     color: Mapped[str] = mapped_column(String(16), nullable=False, default="gray")
     description: Mapped[str] = mapped_column(String(1024), nullable=False, default="")
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
 
 
 class TagAssignmentRow(Base):
@@ -44,4 +45,4 @@ class TagAssignmentRow(Base):
     tag_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
     target_type: Mapped[str] = mapped_column(String(32), nullable=False, index=True)
     target_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC))

offline-backend-20260512/backend/packages/harness/deerflow/persistence/thread_meta/model.py

@@ -4,10 +4,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import JSON, DateTime, String
+from sqlalchemy import String
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime, PortableJSON
 
 
 class ThreadMetaRow(Base):
@@ -18,6 +19,6 @@ class ThreadMetaRow(Base):
     user_id: Mapped[str | None] = mapped_column(String(64), index=True)
     display_name: Mapped[str | None] = mapped_column(String(256))
     status: Mapped[str] = mapped_column(String(20), default="idle")
-    metadata_json: Mapped[dict] = mapped_column(JSON, default=dict)
+    metadata_json: Mapped[dict] = mapped_column(PortableJSON(), default=dict)
-    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC))
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC))
-    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))
+    updated_at: Mapped[datetime] = mapped_column(BeijingDateTime(), default=lambda: datetime.now(UTC), onupdate=lambda: datetime.now(UTC))

offline-backend-20260512/backend/packages/harness/deerflow/persistence/thread_shares/__init__.py

@@ -0,0 +1,19 @@
+"""Persistence layer for conversation-history share links."""
+
+from deerflow.persistence.thread_shares.base import ThreadShareStore, generate_share_code
+from deerflow.persistence.thread_shares.memory import MemoryThreadShareStore
+from deerflow.persistence.thread_shares.sql import ThreadShareRepository
+
+__all__ = [
+    "ThreadShareStore",
+    "MemoryThreadShareStore",
+    "ThreadShareRepository",
+    "generate_share_code",
+    "make_thread_share_store",
+]
+
+
+def make_thread_share_store(session_factory):
+    if session_factory is None:
+        return MemoryThreadShareStore()
+    return ThreadShareRepository(session_factory)

offline-backend-20260512/backend/packages/harness/deerflow/persistence/thread_shares/base.py

@@ -0,0 +1,50 @@
+"""Abstract persistence API for per-conversation share links."""
+
+from __future__ import annotations
+
+import secrets
+from abc import ABC, abstractmethod
+from typing import Any
+
+# Unambiguous alphabet — no 0/O/1/I/L so codes are easy to read and type.
+_CODE_ALPHABET = "ABCDEFGHJKMNPQRSTUVWXYZ23456789"
+
+
+def generate_share_code(length: int = 8) -> str:
+    """Return a random, unguessable, human-readable share code."""
+    return "".join(secrets.choice(_CODE_ALPHABET) for _ in range(length))
+
+
+class ThreadShareStore(ABC):
+    @abstractmethod
+    async def create(self, owner_user_id: str, thread_id: str, *, mode: str = "import") -> dict[str, Any]:
+        """Create a new share link for one conversation and return its record.
+
+        ``mode`` is ``"import"`` (recipient copies the conversation) or
+        ``"view"`` (a public read-only static page).
+        """
+        raise NotImplementedError
+
+    @abstractmethod
+    async def get(self, share_code: str) -> dict[str, Any] | None:
+        """Look up a share by code regardless of owner (None if missing)."""
+        raise NotImplementedError
+
+    @abstractmethod
+    async def get_active_for_thread(self, owner_user_id: str, thread_id: str, *, mode: str = "import") -> dict[str, Any] | None:
+        """Return the owner's non-revoked share of ``mode`` for ``thread_id``, if any.
+
+        Used so re-sharing the same conversation in the same mode reuses its
+        existing code instead of minting a new one each time.
+        """
+        raise NotImplementedError
+
+    @abstractmethod
+    async def list_for_owner(self, owner_user_id: str) -> list[dict[str, Any]]:
+        """List all share links created by ``owner_user_id`` (newest first)."""
+        raise NotImplementedError
+
+    @abstractmethod
+    async def revoke(self, share_code: str, owner_user_id: str) -> bool:
+        """Revoke a share link. Returns False if missing or not owned."""
+        raise NotImplementedError

offline-backend-20260512/backend/packages/harness/deerflow/persistence/thread_shares/memory.py

@@ -0,0 +1,59 @@
+"""In-memory ``ThreadShareStore`` implementation for tests / memory backend."""
+
+from __future__ import annotations
+
+import copy
+from datetime import UTC, datetime
+from typing import Any
+
+from deerflow.persistence.thread_shares.base import ThreadShareStore, generate_share_code
+
+
+class MemoryThreadShareStore(ThreadShareStore):
+    def __init__(self) -> None:
+        self._shares: dict[str, dict[str, Any]] = {}
+
+    async def create(self, owner_user_id: str, thread_id: str, *, mode: str = "import") -> dict[str, Any]:
+        code = generate_share_code()
+        while code in self._shares:
+            code = generate_share_code()
+        record = {
+            "share_code": code,
+            "owner_user_id": owner_user_id,
+            "thread_id": thread_id,
+            "revoked": False,
+            "mode": mode,
+            "created_at": datetime.now(UTC).isoformat(),
+        }
+        self._shares[code] = record
+        return copy.deepcopy(record)
+
+    async def get(self, share_code: str) -> dict[str, Any] | None:
+        record = self._shares.get(share_code)
+        return copy.deepcopy(record) if record is not None else None
+
+    async def get_active_for_thread(self, owner_user_id: str, thread_id: str, *, mode: str = "import") -> dict[str, Any] | None:
+        matches = [
+            r
+            for r in self._shares.values()
+            if r["owner_user_id"] == owner_user_id
+            and r["thread_id"] == thread_id
+            and r.get("mode", "import") == mode
+            and not r["revoked"]
+        ]
+        if not matches:
+            return None
+        matches.sort(key=lambda r: r["created_at"], reverse=True)
+        return copy.deepcopy(matches[0])
+
+    async def list_for_owner(self, owner_user_id: str) -> list[dict[str, Any]]:
+        rows = [r for r in self._shares.values() if r["owner_user_id"] == owner_user_id]
+        rows.sort(key=lambda r: r["created_at"], reverse=True)
+        return [copy.deepcopy(r) for r in rows]
+
+    async def revoke(self, share_code: str, owner_user_id: str) -> bool:
+        record = self._shares.get(share_code)
+        if record is None or record["owner_user_id"] != owner_user_id:
+            return False
+        record["revoked"] = True
+        return True

offline-backend-20260512/backend/packages/harness/deerflow/persistence/thread_shares/model.py

@@ -0,0 +1,37 @@
+"""ORM model for conversation share links.
+
+A share link is a short, revocable code created by a user for *one* of their
+conversations. Redeeming it copies that single conversation into the redeemer's
+account. The table only stores the link itself — the conversation is copied
+lazily at import time.
+"""
+
+from __future__ import annotations
+
+from datetime import UTC, datetime
+
+from sqlalchemy import Boolean, String
+from sqlalchemy.orm import Mapped, mapped_column
+
+from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime
+
+
+class ThreadShareRow(Base):
+    __tablename__ = "thread_shares"
+
+    # Short, URL-safe, unguessable code embedded in the share link.
+    share_code: Mapped[str] = mapped_column(String(32), primary_key=True)
+    # The user who created the share.
+    owner_user_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
+    # The single conversation (thread) this link shares.
+    thread_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
+    # Soft-disable: a revoked link can no longer be previewed or imported.
+    revoked: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
+    # Share mode:
+    #   "import" — recipient (a logged-in user) copies the conversation into
+    #              their own account and can keep chatting in the copy.
+    #   "view"   — a public, read-only static page anyone can open without
+    #              logging in; viewers cannot send new messages.
+    mode: Mapped[str] = mapped_column(String(16), nullable=False, default="import", server_default="import")
+    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC))

offline-backend-20260512/backend/packages/harness/deerflow/persistence/thread_shares/sql.py

@@ -0,0 +1,80 @@
+"""SQLAlchemy-backed per-conversation share-link repository."""
+
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Any
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker
+
+from deerflow.persistence.thread_shares.base import ThreadShareStore, generate_share_code
+from deerflow.persistence.thread_shares.model import ThreadShareRow
+
+
+def _row_to_dict(row: ThreadShareRow) -> dict[str, Any]:
+    data = row.to_dict()
+    created = data.get("created_at")
+    if isinstance(created, datetime):
+        data["created_at"] = created.isoformat()
+    return data
+
+
+class ThreadShareRepository(ThreadShareStore):
+    def __init__(self, session_factory: async_sessionmaker[AsyncSession]) -> None:
+        self._sf = session_factory
+
+    async def create(self, owner_user_id: str, thread_id: str, *, mode: str = "import") -> dict[str, Any]:
+        # Retry on the (astronomically unlikely) code collision.
+        async with self._sf() as session:
+            for _ in range(8):
+                code = generate_share_code()
+                if await session.get(ThreadShareRow, code) is not None:
+                    continue
+                row = ThreadShareRow(
+                    share_code=code,
+                    owner_user_id=owner_user_id,
+                    thread_id=thread_id,
+                    revoked=False,
+                    mode=mode,
+                )
+                session.add(row)
+                await session.commit()
+                await session.refresh(row)
+                return _row_to_dict(row)
+        raise RuntimeError("Failed to allocate a unique share code")
+
+    async def get(self, share_code: str) -> dict[str, Any] | None:
+        async with self._sf() as session:
+            row = await session.get(ThreadShareRow, share_code)
+            return _row_to_dict(row) if row is not None else None
+
+    async def get_active_for_thread(self, owner_user_id: str, thread_id: str, *, mode: str = "import") -> dict[str, Any] | None:
+        stmt = (
+            select(ThreadShareRow)
+            .where(
+                ThreadShareRow.owner_user_id == owner_user_id,
+                ThreadShareRow.thread_id == thread_id,
+                ThreadShareRow.mode == mode,
+                ThreadShareRow.revoked.is_(False),
+            )
+            .order_by(ThreadShareRow.created_at.desc())
+        )
+        async with self._sf() as session:
+            row = (await session.execute(stmt)).scalars().first()
+            return _row_to_dict(row) if row is not None else None
+
+    async def list_for_owner(self, owner_user_id: str) -> list[dict[str, Any]]:
+        stmt = select(ThreadShareRow).where(ThreadShareRow.owner_user_id == owner_user_id).order_by(ThreadShareRow.created_at.desc())
+        async with self._sf() as session:
+            result = await session.execute(stmt)
+            return [_row_to_dict(row) for row in result.scalars()]
+
+    async def revoke(self, share_code: str, owner_user_id: str) -> bool:
+        async with self._sf() as session:
+            row = await session.get(ThreadShareRow, share_code)
+            if row is None or row.owner_user_id != owner_user_id:
+                return False
+            row.revoked = True
+            await session.commit()
+            return True

offline-backend-20260512/backend/packages/harness/deerflow/persistence/types.py

@@ -0,0 +1,85 @@
+"""Portable SQLAlchemy column types."""
+
+from __future__ import annotations
+
+import json
+from datetime import datetime, timedelta, timezone
+from typing import Any
+
+from sqlalchemy import JSON, DateTime, Text
+from sqlalchemy.types import TypeDecorator
+
+# China Standard Time. China has observed UTC+8 with no DST since 1991, so a
+# fixed offset is exact and avoids depending on the `tzdata` package (which the
+# stdlib `zoneinfo` needs on Windows / minimal containers).
+BEIJING_TZ = timezone(timedelta(hours=8))
+
+
+class PortableJSON(TypeDecorator):
+    """Use native JSON where available, and TEXT on older MySQL servers."""
+
+    impl = JSON
+    cache_ok = True
+
+    def load_dialect_impl(self, dialect):
+        if dialect.name == "mysql":
+            return dialect.type_descriptor(Text())
+        return dialect.type_descriptor(JSON())
+
+    def process_bind_param(self, value: Any, dialect) -> Any:
+        if dialect.name != "mysql" or value is None:
+            return value
+        return json.dumps(value, ensure_ascii=False)
+
+    def process_result_value(self, value: Any, dialect) -> Any:
+        if dialect.name != "mysql" or value is None or not isinstance(value, str):
+            return value
+        if not value:
+            return None
+        return json.loads(value)
+
+
+class BeijingDateTime(TypeDecorator):
+    """Store timestamps as Beijing (UTC+8) wall-clock time.
+
+    The application works in UTC internally (``datetime.now(UTC)`` everywhere).
+    MySQL ``DATETIME`` and SQLite have no timezone, so the driver serializes the
+    wall-clock fields of whatever datetime it is given and drops ``tzinfo``.
+    Without conversion a row stores the UTC wall clock and an operator browsing
+    the table sees a time 8 hours behind Beijing.
+
+    This decorator converts UTC-aware values to Beijing on the way in (stored as
+    naive Beijing wall-clock) and re-attaches the Beijing zone on the way out, so
+    the database holds Beijing time while Python keeps receiving correct
+    timezone-aware datetimes — instant comparisons stay correct either way.
+
+    PostgreSQL has a real ``TIMESTAMP WITH TIME ZONE`` type and stores the
+    instant unambiguously, so values pass through unchanged there.
+    """
+
+    impl = DateTime
+    cache_ok = True
+
+    def load_dialect_impl(self, dialect):
+        # timezone=True keeps PostgreSQL on timestamptz; MySQL/SQLite ignore it.
+        return dialect.type_descriptor(DateTime(timezone=True))
+
+    def process_bind_param(self, value: Any, dialect) -> Any:
+        if not isinstance(value, datetime):
+            return value
+        if dialect.name == "postgresql":
+            return value
+        if value.tzinfo is None:
+            # Naive values follow the codebase convention of being UTC.
+            value = value.replace(tzinfo=timezone.utc)
+        return value.astimezone(BEIJING_TZ).replace(tzinfo=None)
+
+    def process_result_value(self, value: Any, dialect) -> Any:
+        if not isinstance(value, datetime):
+            return value
+        if dialect.name == "postgresql":
+            return value
+        if value.tzinfo is None:
+            # Stored as naive Beijing wall-clock; re-attach the zone.
+            return value.replace(tzinfo=BEIJING_TZ)
+        return value.astimezone(BEIJING_TZ)

offline-backend-20260512/backend/packages/harness/deerflow/persistence/user/model.py

@@ -13,10 +13,11 @@ from __future__ import annotations
 
 from datetime import UTC, datetime
 
-from sqlalchemy import Boolean, DateTime, Index, String, text
+from sqlalchemy import Boolean, Index, String, text
 from sqlalchemy.orm import Mapped, mapped_column
 
 from deerflow.persistence.base import Base
+from deerflow.persistence.types import BeijingDateTime
 
 
 class UserRow(Base):
@@ -25,7 +26,7 @@ class UserRow(Base):
     # UUIDs are stored as 36-char strings for cross-backend portability.
     id: Mapped[str] = mapped_column(String(36), primary_key=True)
 
-    email: Mapped[str] = mapped_column(String(320), unique=True, nullable=False, index=True)
+    email: Mapped[str] = mapped_column(String(191), unique=True, nullable=False, index=True)
     password_hash: Mapped[str | None] = mapped_column(String(128), nullable=True)
 
     # "admin" | "user" — kept as plain string to avoid ALTER TABLE pain
@@ -33,7 +34,7 @@ class UserRow(Base):
     system_role: Mapped[str] = mapped_column(String(16), nullable=False, default="user")
 
     created_at: Mapped[datetime] = mapped_column(
-        DateTime(timezone=True),
+        BeijingDateTime(),
         nullable=False,
         default=lambda: datetime.now(UTC),
     )

offline-backend-20260512/backend/packages/harness/deerflow/runtime/events/store/base.py

@@ -87,6 +87,7 @@ class RunEventStore(abc.ABC):
         limit: int = 50,
         before_seq: int | None = None,
         after_seq: int | None = None,
+        user_id: str | None = None,
     ) -> list[dict]:
         """Return displayable messages (category=message) for a specific run, ordered by seq ascending.
 

offline-backend-20260512/backend/packages/harness/deerflow/runtime/events/store/jsonl.py

@@ -152,7 +152,9 @@ class JsonlRunEventStore(RunEventStore):
             events = [e for e in events if e.get("event_type") in event_types]
         return events[:limit]
 
-    async def list_messages_by_run(self, thread_id, run_id, *, limit=50, before_seq=None, after_seq=None):
+    async def list_messages_by_run(self, thread_id, run_id, *, limit=50, before_seq=None, after_seq=None, user_id=None):
+        # JSONL events carry no per-event owner; user_id is accepted for
+        # interface parity with DbRunEventStore but ignored.
         events = self._read_run_events(thread_id, run_id)
         filtered = [e for e in events if e.get("category") == "message"]
         if before_seq is not None:

offline-backend-20260512/backend/packages/harness/deerflow/runtime/events/store/memory.py

@@ -97,7 +97,9 @@ class MemoryRunEventStore(RunEventStore):
             filtered = [e for e in filtered if e["event_type"] in event_types]
         return filtered[:limit]
 
-    async def list_messages_by_run(self, thread_id, run_id, *, limit=50, before_seq=None, after_seq=None):
+    async def list_messages_by_run(self, thread_id, run_id, *, limit=50, before_seq=None, after_seq=None, user_id=None):
+        # The in-memory store keeps no per-event owner, so user_id is accepted
+        # for interface parity with DbRunEventStore but ignored.
         all_events = self._events.get(thread_id, [])
         filtered = [e for e in all_events if e["run_id"] == run_id and e["category"] == "message"]
         if before_seq is not None:

offline-backend-20260512/backend/packages/harness/deerflow/runtime/scheduler/__init__.py

@@ -1,4 +1,4 @@
 from .registry import get_scheduled_task_service, set_scheduled_task_service
-from .service import ScheduledTaskService
+from .service import DuplicateTaskNameError, ScheduledTaskService
 
-__all__ = ["ScheduledTaskService", "get_scheduled_task_service", "set_scheduled_task_service"]
+__all__ = ["DuplicateTaskNameError", "ScheduledTaskService", "get_scheduled_task_service", "set_scheduled_task_service"]

offline-backend-20260512/backend/packages/harness/deerflow/runtime/scheduler/service.py

@@ -9,7 +9,7 @@ import re
 import shutil
 import uuid
 from dataclasses import dataclass
-from datetime import UTC, datetime
+from datetime import UTC, datetime, timedelta
 from pathlib import Path
 from types import SimpleNamespace
 from typing import Any
@@ -27,6 +27,27 @@ from deerflow.utils.time import now_iso
 
 logger = logging.getLogger(__name__)
 
+# A single execution attempt may not exceed this wall-clock budget. When it
+# does, the run is treated as stuck (the agent loop hung, a tool blocked, etc.)
+# and retried. The watchdog uses the same window to recover runs orphaned by a
+# crash or restart — those stay "running" in the DB with no in-process owner.
+_RUN_ATTEMPT_TIMEOUT_SECONDS = 30 * 60  # 30 minutes
+# Retries allowed after the first attempt before the run is marked "failed".
+_MAX_RUN_RETRIES = 3
+
+
+class DuplicateTaskNameError(Exception):
+    """A user already owns a scheduled task with the requested name.
+
+    Task names are unique per user (``uq_scheduled_tasks_user_name``). The
+    service raises this instead of letting the raw DB ``IntegrityError`` bubble
+    up so the API layer can return a friendly 409 rather than a 500.
+    """
+
+    def __init__(self, name: str) -> None:
+        self.name = name
+        super().__init__(f"A scheduled task named {name!r} already exists")
+
 
 @dataclass
 class _RuntimeUser:
@@ -337,15 +358,20 @@ class ScheduledTaskService:
             "kind": item.get("kind"),
         }
 
+    @staticmethod
+    def _remove_run_archive(run_id: str) -> None:
+        """Best-effort cleanup of a run's on-disk result archive."""
+        archive_dir = get_paths().base_dir / "scheduled-task-runs" / run_id
+        if archive_dir.exists():
+            try:
+                shutil.rmtree(archive_dir)
+            except Exception:
+                logger.warning("Failed to delete scheduled task run archive %s", archive_dir, exc_info=True)
+
     async def delete_run(self, user_id: str, run_id: str) -> bool:
         deleted = await self.store.delete_run(run_id, user_id)
         if deleted:
-            archive_dir = get_paths().base_dir / "scheduled-task-runs" / run_id
+            self._remove_run_archive(run_id)
-            if archive_dir.exists():
-                try:
-                    shutil.rmtree(archive_dir)
-                except Exception:
-                    logger.warning("Failed to delete scheduled task run archive %s", archive_dir, exc_info=True)
             return True
         candidate = await self.store.get_run_any(run_id)
         if candidate is not None and await self.store.get_subscription(candidate["task_id"], user_id) is not None:
@@ -358,6 +384,20 @@ class ScheduledTaskService:
     async def update_delivery_profile(self, user_id: str, data: dict[str, Any]) -> dict[str, Any]:
         return await self.store.update_delivery_profile(user_id, data)
 
+    async def _assert_name_available(self, user_id: str, name: str, *, exclude_task_id: str | None = None) -> None:
+        """Raise :class:`DuplicateTaskNameError` if ``user_id`` already owns ``name``.
+
+        Enforces ``uq_scheduled_tasks_user_name`` proactively so callers get a
+        clean conflict error instead of a raw DB ``IntegrityError``. The check
+        compares the trimmed name; ``exclude_task_id`` skips the task being
+        renamed so an unchanged name on update is not flagged as a collision.
+        """
+        for existing in await self.store.list_tasks(user_id):
+            if exclude_task_id is not None and existing.get("task_id") == exclude_task_id:
+                continue
+            if (existing.get("name") or "").strip() == name:
+                raise DuplicateTaskNameError(name)
+
     async def create_task(
         self,
         *,
@@ -374,6 +414,8 @@ class ScheduledTaskService:
         tz = _normalize_timezone(timezone)
         cron_expr = _schedule_to_cron(schedule)
         next_run_at = _next_run_at(cron_expr, tz)
+        final_name = name.strip() or "Scheduled task"
+        await self._assert_name_available(user_id, final_name)
         scheduler_thread = await self.ensure_scheduler_thread(user_id)
         context = dict(execution_context or {})
         if execution_agent_name:
@@ -386,7 +428,7 @@ class ScheduledTaskService:
                 "source_thread_id": source_thread_id,
                 "source_agent_name": source_agent_name,
                 "execution_agent_name": execution_agent_name,
-                "name": name.strip() or "Scheduled task",
+                "name": final_name,
                 "prompt": prompt.strip(),
                 "schedule_text": schedule.strip(),
                 "cron_expr": cron_expr,
@@ -398,31 +440,106 @@ class ScheduledTaskService:
         )
         return task
 
-    async def update_task(self, user_id: str, task_id: str, data: dict[str, Any]) -> dict[str, Any] | None:
+    @staticmethod
+    def _build_task_update(data: dict[str, Any], existing: dict[str, Any] | None) -> dict[str, Any]:
+        """Translate an API update payload into a storage update dict.
+
+        Shared by owner-scoped :meth:`update_task` and admin :meth:`admin_update_task`
+        so both apply identical schedule/timezone normalization.
+        """
         update_data: dict[str, Any] = {}
         for key in ("name", "prompt", "enabled", "execution_agent_name"):
             if key in data and data[key] is not None:
                 update_data[key] = data[key]
+        # Names are matched against the per-user uniqueness constraint, so keep
+        # the stored value trimmed to match create_task's normalization.
+        if isinstance(update_data.get("name"), str):
+            update_data["name"] = update_data["name"].strip() or "Scheduled task"
         timezone = data.get("timezone")
         if timezone is not None:
             update_data["timezone"] = _normalize_timezone(timezone)
         if data.get("schedule") is not None:
             schedule = str(data["schedule"])
             cron_expr = _schedule_to_cron(schedule)
-            tz = update_data.get("timezone")
+            tz = update_data.get("timezone") or (existing or {}).get("timezone") or "UTC"
-            if tz is None:
-                existing = await self.store.get_task(task_id, user_id)
-                tz = (existing or {}).get("timezone", "UTC")
             update_data["schedule_text"] = schedule
             update_data["cron_expr"] = cron_expr
             update_data["next_run_at"] = _next_run_at(cron_expr, tz)
         if data.get("execution_context") is not None:
             update_data["execution_context"] = data["execution_context"]
+        # Re-enabling a task must also schedule it forward from now, otherwise a
+        # paused task with a stale/empty next_run_at would never fire again.
+        if update_data.get("enabled") is True and "next_run_at" not in update_data:
+            cron = (existing or {}).get("cron_expr")
+            if cron:
+                tz = update_data.get("timezone") or (existing or {}).get("timezone") or "UTC"
+                update_data["next_run_at"] = _next_run_at(cron, tz)
+        return update_data
+
+    async def update_task(self, user_id: str, task_id: str, data: dict[str, Any]) -> dict[str, Any] | None:
+        existing = await self.store.get_task(task_id, user_id)
+        if existing is None:
+            return None
+        update_data = self._build_task_update(data, existing)
+        if "name" in update_data:
+            await self._assert_name_available(user_id, update_data["name"], exclude_task_id=task_id)
         return await self.store.update_task(task_id, user_id, update_data)
 
     async def delete_task(self, user_id: str, task_id: str) -> bool:
         return await self.store.delete_task(task_id, user_id)
 
+    # --- Admin (cross-user management) ---
+
+    async def admin_list_tasks(self) -> list[dict[str, Any]]:
+        """List every scheduled task across all users. Admin-only callers."""
+        tasks = await self.store.list_all_tasks()
+        for task in tasks:
+            task["role"] = "owner"
+        return tasks
+
+    async def admin_update_task(self, task_id: str, data: dict[str, Any]) -> dict[str, Any] | None:
+        """Update any task regardless of owner. Admin-only callers."""
+        existing = await self.store.get_task_any(task_id)
+        if existing is None:
+            return None
+        update_data = self._build_task_update(data, existing)
+        if "name" in update_data:
+            await self._assert_name_available(existing["user_id"], update_data["name"], exclude_task_id=task_id)
+        return await self.store.update_task_any(task_id, update_data)
+
+    async def admin_delete_task(self, task_id: str) -> bool:
+        """Delete any task regardless of owner. Admin-only callers."""
+        return await self.store.delete_task_any(task_id)
+
+    async def admin_delete_run(self, run_id: str) -> bool:
+        """Delete a single run regardless of owner. Admin-only callers."""
+        deleted = await self.store.delete_run_any(run_id)
+        if deleted:
+            self._remove_run_archive(run_id)
+        return deleted
+
+    async def admin_list_runs(self, task_id: str, *, limit: int = 50) -> list[dict[str, Any]]:
+        """List runs for any task regardless of owner. Admin-only callers."""
+        runs = await self.store.list_runs_any(task_id, limit=limit)
+        for run in runs:
+            run["can_edit"] = True
+        return runs
+
+    async def admin_get_run(self, run_id: str) -> dict[str, Any] | None:
+        """Fetch a single run regardless of owner. Admin-only callers."""
+        run = await self.store.get_run_any(run_id)
+        if run is not None:
+            run["can_edit"] = True
+        return run
+
+    async def admin_trigger_task(self, task_id: str) -> dict[str, Any] | None:
+        """Trigger an immediate run of any task regardless of owner."""
+        task = await self.store.get_task_any(task_id)
+        if task is None:
+            return None
+        asyncio.create_task(self._execute_tracked(task, scheduled_for=datetime.now(UTC), manual=True))
+        return task
+
     async def pause_task(self, user_id: str, task_id: str) -> dict[str, Any] | None:
         return await self.store.update_task(task_id, user_id, {"enabled": False})
 
@@ -437,11 +554,19 @@ class ScheduledTaskService:
         task = await self.store.get_task(task_id, user_id)
         if task is None:
             return None
-        asyncio.create_task(self._execute_task(task, scheduled_for=datetime.now(UTC), manual=True))
+        asyncio.create_task(self._execute_tracked(task, scheduled_for=datetime.now(UTC), manual=True))
         return task
 
     async def _run_loop(self) -> None:
         while not self._stopping.is_set():
+            # Recover hung / orphaned runs first so a single stuck task cannot
+            # silently wedge the scheduler indefinitely.
+            try:
+                await self._reconcile_stuck_runs()
+            except asyncio.CancelledError:
+                raise
+            except Exception:
+                logger.exception("Scheduled task watchdog scan failed")
             try:
                 due = await self.store.due_tasks(datetime.now(UTC), limit=20)
                 for task in due:
@@ -466,64 +591,195 @@ class ScheduledTaskService:
         finally:
             self._running_task_ids.discard(task["task_id"])
 
-    async def _execute_task(self, task: dict[str, Any], *, scheduled_for: datetime, manual: bool) -> None:
+    async def _execute_tracked(self, task: dict[str, Any], *, scheduled_for: datetime, manual: bool) -> None:
+        """Run a task while marking it busy so the watchdog won't double-drive it."""
+        self._running_task_ids.add(task["task_id"])
+        try:
+            await self._execute_task(task, scheduled_for=scheduled_for, manual=manual)
+        finally:
+            self._running_task_ids.discard(task["task_id"])
+
+    async def _reconcile_stuck_runs(self) -> None:
+        """Recover runs left in the ``running`` state with no in-process owner.
+
+        A run becomes stuck when the agent loop hangs past the per-attempt
+        timeout, or when the process crashes / restarts mid-run (the original
+        asyncio task is gone but the DB row still says ``running``). For each
+        such run we retry up to ``_MAX_RUN_RETRIES`` times, then mark it
+        ``failed`` so it no longer shows as perpetually executing.
+        """
+        cutoff = datetime.now(UTC) - timedelta(seconds=_RUN_ATTEMPT_TIMEOUT_SECONDS)
+        stuck = await self.store.list_stuck_runs(cutoff, limit=20)
+        for run in stuck:
+            task_id = run["task_id"]
+            # A run still owned by a live in-process execution is handled by
+            # that execution's own timeout/retry loop — don't touch it here.
+            if task_id in self._running_task_ids:
+                continue
+            self._running_task_ids.add(task_id)
+            asyncio.create_task(self._recover_and_untrack(run))
+
+    async def _recover_and_untrack(self, run: dict[str, Any]) -> None:
+        try:
+            await self._recover_stuck_run(run)
+        except Exception:
+            logger.exception("Failed to recover stuck scheduled task run %s", run.get("id"))
+        finally:
+            self._running_task_ids.discard(run["task_id"])
+
+    async def _recover_stuck_run(self, run: dict[str, Any]) -> None:
+        run_id = run["id"]
+        retry_count = int(run.get("retry_count") or 0)
+        task = await self.store.get_task_any(run["task_id"])
+        scheduled_for = _coerce_datetime(run.get("scheduled_for")) or datetime.now(UTC)
+        if task is None:
+            # Parent task was deleted — just close out the orphaned run.
+            await self.store.update_run(
+                run_id,
+                {"status": "failed", "finished_at": datetime.now(UTC), "error": "执行超时：所属任务已被删除"},
+            )
+            return
+        if retry_count >= _MAX_RUN_RETRIES:
+            await self._fail_run(
+                task,
+                run_id,
+                scheduled_for,
+                error=f"执行超时：超过 {_RUN_ATTEMPT_TIMEOUT_SECONDS // 60} 分钟未完成，重试 {_MAX_RUN_RETRIES} 次后仍失败",
+                retry_count=retry_count,
+            )
+            return
+        logger.warning("Recovering stuck scheduled task run %s (retry budget %s/%s)", run_id, retry_count, _MAX_RUN_RETRIES)
+        await self._execute_task(task, scheduled_for=scheduled_for, manual=False, run_row=run)
+
+    async def _fail_run(
+        self,
+        task: dict[str, Any],
+        run_id: str,
+        scheduled_for: datetime,
+        *,
+        error: str,
+        retry_count: int = 0,
+    ) -> None:
+        """Mark a run failed and reflect the outcome on the parent task."""
+        result = _build_result(task, scheduled_for=scheduled_for, content=f"Scheduled task failed: {error}")
+        await self.store.update_run(
+            run_id,
+            {"status": "failed", "finished_at": datetime.now(UTC), "error": error, "result": result, "retry_count": retry_count},
+        )
+        await self.store.update_task(task["task_id"], task["user_id"], {"last_run_at": datetime.now(UTC), "last_status": "failed"})
+
+    async def _execute_task(
+        self,
+        task: dict[str, Any],
+        *,
+        scheduled_for: datetime,
+        manual: bool,
+        run_row: dict[str, Any] | None = None,
+    ) -> None:
         # Each run uses its own throwaway thread so message history cannot accumulate
         # across runs and blow past the model's input window. The per-user
         # task["scheduler_thread_id"] is no longer used to drive the LLM call —
         # we keep it on the task row only for backwards compatibility.
-        runtime_thread_id = str(uuid.uuid4())
+        is_recovery = run_row is not None
-        run_row = await self.store.create_run_once(
-            {
-                "id": str(uuid.uuid4()),
-                "task_id": task["task_id"],
-                "user_id": task["user_id"],
-                "scheduler_thread_id": runtime_thread_id,
-                "scheduled_for": scheduled_for,
-                "status": "running",
-                "started_at": datetime.now(UTC),
-            }
-        )
         if run_row is None:
-            return
+            run_row = await self.store.create_run_once(
+                {
+                    "id": str(uuid.uuid4()),
+                    "task_id": task["task_id"],
+                    "user_id": task["user_id"],
+                    "scheduler_thread_id": str(uuid.uuid4()),
+                    "scheduled_for": scheduled_for,
+                    "status": "running",
+                    "started_at": datetime.now(UTC),
+                }
+            )
+            if run_row is None:
+                return
+        else:
+            # Recovery path: re-claim an existing (orphaned) run row.
+            await self.store.update_run(run_row["id"], {"status": "running", "started_at": datetime.now(UTC)})
 
-        if not manual:
+        # Advancing the schedule only happens once, when the run is first
+        # created — recovery retries reuse the original scheduled_for.
+        if not manual and not is_recovery:
             next_run_at = _next_run_at(task["cron_expr"], task.get("timezone") or "UTC", base=scheduled_for)
             await self.store.update_task(task["task_id"], task["user_id"], {"next_run_at": next_run_at, "last_status": "running"})
 
-        try:
+        run_id = run_row["id"]
-            await self._ensure_thread_meta(task["user_id"], runtime_thread_id)
+        retry_count = int(run_row.get("retry_count") or 0)
-            async with self._agent_run_lock:
+
-                output_snapshot = self._snapshot_result_files(runtime_thread_id, task["user_id"])
+        while True:
-                record = await self._start_agent_run(task, scheduled_for=scheduled_for, runtime_thread_id=runtime_thread_id)
+            runtime_thread_id = str(uuid.uuid4())
-                await self.store.update_run(run_row["id"], {"agent_run_id": record.run_id})
+            try:
-                if record.task is not None:
+                result = await asyncio.wait_for(
-                    await record.task
+                    self._run_agent_attempt(task, runtime_thread_id=runtime_thread_id, scheduled_for=scheduled_for, run_id=run_id),
-                result_text = await self._extract_latest_ai_text(runtime_thread_id)
+                    timeout=_RUN_ATTEMPT_TIMEOUT_SECONDS,
-                result_files = await self._extract_result_files(
-                    runtime_thread_id,
-                    task["user_id"],
-                    run_id=run_row["id"],
-                    output_snapshot=output_snapshot,
                 )
-            result = _build_result(task, scheduled_for=scheduled_for, content=result_text, files=result_files)
+            except TimeoutError:
+                # The attempt overran the 30-minute cap. Retry a bounded number
+                # of times, then give up and mark the run failed.
+                if retry_count >= _MAX_RUN_RETRIES:
+                    await self._fail_run(
+                        task,
+                        run_id,
+                        scheduled_for,
+                        error=f"执行超时：单次执行超过 {_RUN_ATTEMPT_TIMEOUT_SECONDS // 60} 分钟，重试 {_MAX_RUN_RETRIES} 次后仍失败",
+                        retry_count=retry_count,
+                    )
+                    return
+                retry_count += 1
+                logger.warning("Scheduled task %s timed out; retry %s/%s", task["task_id"], retry_count, _MAX_RUN_RETRIES)
+                await self.store.update_run(
+                    run_id,
+                    {
+                        "retry_count": retry_count,
+                        "status": "running",
+                        "started_at": datetime.now(UTC),
+                        "error": f"执行超时，正在重试（第 {retry_count}/{_MAX_RUN_RETRIES} 次）",
+                    },
+                )
+                continue
+            except Exception as exc:
+                logger.exception("Scheduled task %s failed", task["task_id"])
+                await self._fail_run(task, run_id, scheduled_for, error=str(exc), retry_count=retry_count)
+                return
+
             await self.store.update_run(
-                run_row["id"],
+                run_id,
-                {"status": "succeeded", "finished_at": datetime.now(UTC), "result": result},
+                {"status": "succeeded", "finished_at": datetime.now(UTC), "result": result, "retry_count": retry_count, "error": None},
             )
             await self.store.update_task(task["task_id"], task["user_id"], {"last_run_at": datetime.now(UTC), "last_status": "succeeded"})
             await self._deliver_element_result(task, result["content"])
-        except Exception as exc:
+            return
-            logger.exception("Scheduled task %s failed", task["task_id"])
+
-            result = _build_result(
+    async def _run_agent_attempt(
-                task,
+        self,
-                scheduled_for=scheduled_for,
+        task: dict[str, Any],
-                content=f"Scheduled task failed: {exc}",
+        *,
+        runtime_thread_id: str,
+        scheduled_for: datetime,
+        run_id: str,
+    ) -> dict[str, Any]:
+        """Run the agent once and build the result payload.
+
+        Wrapped in :func:`asyncio.wait_for` by the caller so a hung agent loop
+        cannot hold the shared run lock — and the whole scheduler — forever.
+        """
+        await self._ensure_thread_meta(task["user_id"], runtime_thread_id)
+        async with self._agent_run_lock:
+            output_snapshot = self._snapshot_result_files(runtime_thread_id, task["user_id"])
+            record = await self._start_agent_run(task, scheduled_for=scheduled_for, runtime_thread_id=runtime_thread_id)
+            await self.store.update_run(run_id, {"agent_run_id": record.run_id})
+            if record.task is not None:
+                await record.task
+            result_text = await self._extract_latest_ai_text(runtime_thread_id)
+            result_files = await self._extract_result_files(
+                runtime_thread_id,
+                task["user_id"],
+                run_id=run_id,
+                output_snapshot=output_snapshot,
             )
-            await self.store.update_run(
+        return _build_result(task, scheduled_for=scheduled_for, content=result_text, files=result_files)
-                run_row["id"],
-                {"status": "failed", "finished_at": datetime.now(UTC), "error": str(exc), "result": result},
-            )
-            await self.store.update_task(task["task_id"], task["user_id"], {"last_run_at": datetime.now(UTC), "last_status": "failed"})
 
     async def _ensure_thread_meta(self, user_id: str, thread_id: str) -> None:
         token = set_current_user(_RuntimeUser(id=user_id))

offline-backend-20260512/backend/packages/harness/pyproject.toml

@@ -46,6 +46,7 @@ postgres = [
     "psycopg[binary]>=3.3.3",
     "psycopg-pool>=3.3.0",
 ]
+mysql = ["asyncmy>=0.2.10"]
 pymupdf = ["pymupdf4llm>=0.0.17"]
 
 [build-system]

offline-backend-20260512/backend/pyproject.toml

@@ -26,6 +26,7 @@ dependencies = [
 
 [project.optional-dependencies]
 postgres = ["deerflow-harness[postgres]"]
+mysql = ["deerflow-harness[mysql]"]
 
 [dependency-groups]
 dev = [

offline-backend-20260512/backend/scripts/migrate_business_sqlite_to_mysql.py

@@ -0,0 +1,433 @@
+"""Migrate DeerFlow business tables from SQLite to MySQL.
+
+This intentionally excludes LangGraph checkpoint tables (``checkpoints`` and
+``writes``).  Keep those on SQLite unless/until a MySQL checkpointer is added.
+"""
+
+from __future__ import annotations
+
+import argparse
+import asyncio
+import json
+import os
+import sqlite3
+import sys
+from collections.abc import Iterable
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Any
+
+import sqlalchemy as sa
+from sqlalchemy import MetaData, text
+from sqlalchemy.engine import make_url
+from sqlalchemy.ext.asyncio import create_async_engine
+
+
+BUSINESS_TABLES = [
+    "users",
+    "threads_meta",
+    "runs",
+    "run_events",
+    "feedback",
+    "agents",
+    "skills",
+    "scheduled_tasks",
+    "scheduled_task_subscriptions",
+    "scheduled_task_runs",
+    "scheduled_task_delivery_profiles",
+    "scheduler_threads",
+    "llm_call_metrics",
+    "notifications",
+    "recommended_questions",
+    "tags",
+    "tag_assignments",
+    "thread_shares",
+]
+
+JSON_COLUMNS = {
+    ("threads_meta", "metadata_json"),
+    ("runs", "metadata_json"),
+    ("runs", "kwargs_json"),
+    ("run_events", "event_metadata"),
+    ("scheduled_tasks", "execution_context_json"),
+    ("scheduled_task_runs", "result_json"),
+    ("notifications", "payload"),
+}
+
+
+def _json_serializer(obj: object) -> str:
+    return json.dumps(obj, ensure_ascii=False)
+
+
+def _add_vendor_path(vendor_dir: str | None) -> None:
+    candidates: list[Path] = []
+    if vendor_dir:
+        candidates.append(Path(vendor_dir))
+    if env_home := os.getenv("DEER_FLOW_HOME"):
+        candidates.append(Path(env_home) / "python-vendor")
+    candidates.append(Path(".deer-flow/python-vendor"))
+
+    for candidate in candidates:
+        resolved = candidate.resolve()
+        if resolved.exists():
+            value = str(resolved)
+            if value not in sys.path:
+                sys.path.insert(0, value)
+
+
+def _normalize_mysql_url(raw: str) -> str:
+    if raw.startswith("mysql://"):
+        return raw.replace("mysql://", "mysql+asyncmy://", 1)
+    return raw
+
+
+def _quote_sqlite_identifier(name: str) -> str:
+    return '"' + name.replace('"', '""') + '"'
+
+
+def _sqlite_tables(conn: sqlite3.Connection) -> set[str]:
+    rows = conn.execute("SELECT name FROM sqlite_master WHERE type='table'").fetchall()
+    return {str(row[0]) for row in rows}
+
+
+def _sqlite_columns(conn: sqlite3.Connection, table_name: str) -> list[str]:
+    rows = conn.execute(f"PRAGMA table_info({_quote_sqlite_identifier(table_name)})").fetchall()
+    return [str(row[1]) for row in rows]
+
+
+def _sqlite_count(conn: sqlite3.Connection, table_name: str) -> int:
+    return int(conn.execute(f"SELECT COUNT(*) FROM {_quote_sqlite_identifier(table_name)}").fetchone()[0])
+
+
+def _parse_datetime(value: Any) -> Any:
+    if value is None or isinstance(value, datetime):
+        return value
+    if isinstance(value, (int, float)):
+        return datetime.fromtimestamp(value, tz=timezone.utc).replace(tzinfo=None)
+    if not isinstance(value, str):
+        return value
+
+    raw = value.strip()
+    if not raw:
+        return None
+    if raw.endswith("Z"):
+        raw = raw[:-1] + "+00:00"
+    parsed = datetime.fromisoformat(raw)
+    if parsed.tzinfo is not None:
+        parsed = parsed.astimezone(timezone.utc).replace(tzinfo=None)
+    return parsed
+
+
+def _parse_json(value: Any) -> Any:
+    if value is None or isinstance(value, (dict, list, int, float, bool)):
+        return value
+    if isinstance(value, bytes):
+        value = value.decode("utf-8")
+    if isinstance(value, str):
+        raw = value.strip()
+        if not raw:
+            return None
+        return json.loads(raw)
+    return value
+
+
+def _convert_value(table_name: str, column: sa.Column, value: Any) -> Any:
+    if value is None:
+        return None
+    if (table_name, column.name) in JSON_COLUMNS or isinstance(column.type, sa.JSON):
+        parsed = _parse_json(value)
+        if not isinstance(column.type, sa.JSON):
+            return json.dumps(parsed, ensure_ascii=False)
+        return parsed
+    if isinstance(column.type, sa.DateTime):
+        return _parse_datetime(value)
+    if isinstance(column.type, sa.Boolean):
+        return bool(value)
+    return value
+
+
+def _build_rows(
+    *,
+    table_name: str,
+    table: sa.Table,
+    rows: Iterable[sqlite3.Row],
+    columns: list[str],
+) -> list[dict[str, Any]]:
+    result: list[dict[str, Any]] = []
+    for row in rows:
+        item: dict[str, Any] = {}
+        for column_name in columns:
+            column = table.c[column_name]
+            item[column_name] = _convert_value(table_name, column, row[column_name])
+        result.append(item)
+    return result
+
+
+async def _create_database_if_needed(mysql_url: str) -> None:
+    parsed = make_url(mysql_url)
+    db_name = parsed.database
+    if not db_name:
+        raise ValueError("MySQL URL must include a database name")
+
+    maintenance = parsed.set(database="mysql")
+    engine = create_async_engine(
+        maintenance.render_as_string(hide_password=False),
+        isolation_level="AUTOCOMMIT",
+        pool_pre_ping=True,
+    )
+    quoted = "`" + db_name.replace("`", "``") + "`"
+    try:
+        async with engine.connect() as conn:
+            await conn.execute(text(f"CREATE DATABASE IF NOT EXISTS {quoted} CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci"))
+    finally:
+        await engine.dispose()
+
+
+async def _create_schema(mysql_url: str) -> None:
+    from deerflow.persistence.base import Base
+
+    import deerflow.persistence.models  # noqa: F401
+
+    engine = create_async_engine(mysql_url, pool_pre_ping=True, json_serializer=_json_serializer)
+    try:
+        async with engine.begin() as conn:
+            await conn.run_sync(Base.metadata.create_all)
+    finally:
+        await engine.dispose()
+
+
+def _quote_mysql_identifier(name: str) -> str:
+    return "`" + name.replace("`", "``") + "`"
+
+
+async def _drop_empty_target_schema(mysql_url: str, table_names: list[str]) -> None:
+    """Drop known target tables only when all existing known tables are empty.
+
+    This is intentionally conservative.  It lets a failed first attempt clean up
+    half-created MySQL tables before re-running with fixed schema definitions,
+    while refusing to touch a database that already contains migrated rows.
+    """
+
+    engine = create_async_engine(mysql_url, pool_pre_ping=True)
+    try:
+        async with engine.begin() as conn:
+            result = await conn.execute(
+                text(
+                    "SELECT TABLE_NAME FROM information_schema.TABLES "
+                    "WHERE TABLE_SCHEMA = DATABASE()"
+                )
+            )
+            existing = {str(row[0]) for row in result}
+            candidates = [name for name in table_names if name in existing]
+            if not candidates:
+                return
+
+            non_empty: list[str] = []
+            for table_name in candidates:
+                count = int(
+                    (
+                        await conn.execute(
+                            text(f"SELECT COUNT(*) FROM {_quote_mysql_identifier(table_name)}")
+                        )
+                    ).scalar_one()
+                )
+                if count > 0:
+                    non_empty.append(table_name)
+
+            if non_empty:
+                joined = ", ".join(non_empty)
+                print(f"Target MySQL has non-empty tables; skip empty-schema cleanup: {joined}")
+                return
+
+            await conn.execute(text("SET FOREIGN_KEY_CHECKS=0"))
+            try:
+                for table_name in reversed(candidates):
+                    await conn.execute(text(f"DROP TABLE {_quote_mysql_identifier(table_name)}"))
+                    print(f"dropped empty target table: {table_name}")
+            finally:
+                await conn.execute(text("SET FOREIGN_KEY_CHECKS=1"))
+    finally:
+        await engine.dispose()
+
+
+def _run_alembic(mysql_url: str) -> None:
+    from alembic import command
+    from alembic.config import Config
+
+    import deerflow.persistence as persistence_pkg
+
+    migrations_dir = str(Path(persistence_pkg.__file__).parent / "migrations")
+    cfg = Config()
+    cfg.set_main_option("script_location", migrations_dir)
+    cfg.set_main_option("sqlalchemy.url", mysql_url.replace("%", "%%"))
+    command.upgrade(cfg, "head")
+
+
+async def _reflect_target(mysql_url: str) -> tuple[sa.ext.asyncio.AsyncEngine, MetaData]:
+    engine = create_async_engine(
+        mysql_url,
+        pool_pre_ping=True,
+        pool_recycle=1800,
+        json_serializer=_json_serializer,
+    )
+    metadata = MetaData()
+    async with engine.begin() as conn:
+        await conn.run_sync(metadata.reflect)
+    return engine, metadata
+
+
+async def _target_count(conn, table: sa.Table) -> int:
+    return int((await conn.execute(sa.select(sa.func.count()).select_from(table))).scalar_one())
+
+
+async def _ensure_target_empty(engine, metadata: MetaData, table_names: list[str]) -> None:
+    non_empty: list[str] = []
+    async with engine.connect() as conn:
+        for table_name in table_names:
+            table = metadata.tables.get(table_name)
+            if table is not None and await _target_count(conn, table) > 0:
+                non_empty.append(table_name)
+    if non_empty:
+        joined = ", ".join(non_empty)
+        raise RuntimeError(f"Target MySQL tables are not empty: {joined}. Re-run with --truncate-target if this is intentional.")
+
+
+async def _truncate_target(engine, metadata: MetaData, table_names: list[str]) -> None:
+    async with engine.begin() as conn:
+        await conn.execute(text("SET FOREIGN_KEY_CHECKS=0"))
+        try:
+            for table_name in reversed(table_names):
+                table = metadata.tables.get(table_name)
+                if table is not None:
+                    await conn.execute(table.delete())
+        finally:
+            await conn.execute(text("SET FOREIGN_KEY_CHECKS=1"))
+
+
+async def _copy_table(
+    *,
+    source: sqlite3.Connection,
+    engine,
+    metadata: MetaData,
+    table_name: str,
+    batch_size: int,
+) -> tuple[int, int]:
+    table = metadata.tables.get(table_name)
+    if table is None:
+        print(f"skip {table_name}: not present in MySQL schema")
+        return 0, 0
+
+    source_columns = _sqlite_columns(source, table_name)
+    columns = [name for name in source_columns if name in table.c]
+    if not columns:
+        print(f"skip {table_name}: no shared columns")
+        return 0, 0
+
+    selected = ", ".join(_quote_sqlite_identifier(name) for name in columns)
+    query = f"SELECT {selected} FROM {_quote_sqlite_identifier(table_name)}"
+    cursor = source.execute(query)
+    copied = 0
+
+    async with engine.begin() as conn:
+        while True:
+            batch = cursor.fetchmany(batch_size)
+            if not batch:
+                break
+            payload = _build_rows(table_name=table_name, table=table, rows=batch, columns=columns)
+            if payload:
+                await conn.execute(table.insert(), payload)
+                copied += len(payload)
+
+    expected = _sqlite_count(source, table_name)
+    return expected, copied
+
+
+async def _verify_counts(source: sqlite3.Connection, engine, metadata: MetaData, table_names: list[str]) -> None:
+    failures: list[str] = []
+    async with engine.connect() as conn:
+        for table_name in table_names:
+            table = metadata.tables.get(table_name)
+            if table is None:
+                continue
+            source_count = _sqlite_count(source, table_name)
+            target_count = await _target_count(conn, table)
+            if source_count != target_count:
+                failures.append(f"{table_name}: sqlite={source_count}, mysql={target_count}")
+    if failures:
+        raise RuntimeError("Row count verification failed:\n  " + "\n  ".join(failures))
+
+
+async def _migrate_data(args: argparse.Namespace, mysql_url: str) -> None:
+    source_path = Path(args.sqlite).resolve()
+    if not source_path.is_file():
+        raise FileNotFoundError(f"SQLite database not found: {source_path}")
+
+    source = sqlite3.connect(str(source_path))
+    source.row_factory = sqlite3.Row
+    try:
+        source_tables = _sqlite_tables(source)
+        table_names = [name for name in BUSINESS_TABLES if name in source_tables]
+        missing = [name for name in BUSINESS_TABLES if name not in source_tables]
+        if missing:
+            print("SQLite tables not present, skipped: " + ", ".join(missing))
+
+        engine, metadata = await _reflect_target(mysql_url)
+        try:
+            if args.truncate_target:
+                await _truncate_target(engine, metadata, table_names)
+            else:
+                await _ensure_target_empty(engine, metadata, table_names)
+
+            for table_name in table_names:
+                expected, copied = await _copy_table(
+                    source=source,
+                    engine=engine,
+                    metadata=metadata,
+                    table_name=table_name,
+                    batch_size=args.batch_size,
+                )
+                print(f"{table_name}: copied {copied}/{expected}")
+
+            await _verify_counts(source, engine, metadata, table_names)
+        finally:
+            await engine.dispose()
+    finally:
+        source.close()
+
+
+def _parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description="Migrate DeerFlow business tables from SQLite to MySQL")
+    parser.add_argument("--sqlite", required=True, help="Source SQLite deerflow.db path")
+    parser.add_argument("--mysql-url", default=os.getenv("MYSQL_DATABASE_URL", ""), help="Target MySQL SQLAlchemy URL")
+    parser.add_argument("--vendor-dir", default="", help="Optional Python vendor directory containing asyncmy")
+    parser.add_argument("--batch-size", type=int, default=1000)
+    parser.add_argument("--create-database", action="store_true", help="Create the target MySQL database if it does not exist")
+    parser.add_argument("--drop-empty-target-schema", action="store_true", help="Drop known target tables first, but only when all are empty")
+    parser.add_argument("--skip-schema", action="store_true", help="Do not create/update target schema before copying")
+    parser.add_argument("--truncate-target", action="store_true", help="Delete existing target rows before copying")
+    return parser.parse_args()
+
+
+def main() -> None:
+    args = _parse_args()
+    _add_vendor_path(args.vendor_dir)
+
+    mysql_url = _normalize_mysql_url(args.mysql_url.strip())
+    if not mysql_url:
+        raise SystemExit("Missing --mysql-url or MYSQL_DATABASE_URL")
+
+    if args.create_database:
+        asyncio.run(_create_database_if_needed(mysql_url))
+
+    if not args.skip_schema:
+        if args.drop_empty_target_schema:
+            asyncio.run(_drop_empty_target_schema(mysql_url, BUSINESS_TABLES + ["alembic_version"]))
+        asyncio.run(_create_schema(mysql_url))
+        _run_alembic(mysql_url)
+
+    asyncio.run(_migrate_data(args, mysql_url))
+    print("Business table migration completed successfully.")
+
+
+if __name__ == "__main__":
+    main()

offline-backend-20260512/backend/scripts/update_database_config.py

@@ -0,0 +1,47 @@
+"""Patch config.yaml for the MySQL business DB + SQLite checkpointer split."""
+
+from __future__ import annotations
+
+import argparse
+from pathlib import Path
+
+import yaml
+
+
+def _parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description="Switch DeerFlow config.yaml to MySQL business storage")
+    parser.add_argument("--config", required=True, help="Path to config.yaml")
+    parser.add_argument("--mysql-url-env", default="MYSQL_DATABASE_URL", help="Environment variable referenced by database.mysql_url")
+    parser.add_argument("--checkpointer-sqlite", required=True, help="SQLite deerflow.db path used by LangGraph checkpointer")
+    parser.add_argument("--pool-size", type=int, default=10)
+    return parser.parse_args()
+
+
+def main() -> None:
+    args = _parse_args()
+    config_path = Path(args.config)
+    data = yaml.safe_load(config_path.read_text(encoding="utf-8")) or {}
+    if not isinstance(data, dict):
+        raise SystemExit(f"Expected a mapping in {config_path}")
+
+    database = dict(data.get("database") or {})
+    database["backend"] = "mysql"
+    database["mysql_url"] = f"${args.mysql_url_env}"
+    database.setdefault("pool_size", args.pool_size)
+    database.setdefault("echo_sql", False)
+    data["database"] = database
+
+    data["checkpointer"] = {
+        "type": "sqlite",
+        "connection_string": args.checkpointer_sqlite,
+    }
+
+    config_path.write_text(
+        yaml.safe_dump(data, allow_unicode=True, sort_keys=False),
+        encoding="utf-8",
+    )
+    print(f"Updated {config_path}: database.backend=mysql, checkpointer.type=sqlite")
+
+
+if __name__ == "__main__":
+    main()

offline-backend-20260512/backend/tests/test_scheduled_task_admin_run_delete.py

@@ -0,0 +1,77 @@
+"""Tests for admin (cross-user) deletion of scheduled-task runs.
+
+Regular users may only delete runs they own; admins may delete any run. This
+covers the service/store layer that the admin-aware ``DELETE /runs/{id}``
+route relies on.
+"""
+
+from __future__ import annotations
+
+from datetime import UTC, datetime
+
+import pytest
+
+from deerflow.persistence.scheduled_tasks import MemoryScheduledTaskStore
+from deerflow.runtime.scheduler.service import ScheduledTaskService
+
+
+@pytest.fixture
+def store() -> MemoryScheduledTaskStore:
+    return MemoryScheduledTaskStore()
+
+
+def _build_service(store: MemoryScheduledTaskStore) -> ScheduledTaskService:
+    service = ScheduledTaskService(app=None, store=store, poll_interval_seconds=60.0)
+    service._element_client = None  # noqa: SLF001
+    return service
+
+
+async def _seed_run(store: MemoryScheduledTaskStore, *, run_id: str, task_id: str, user_id: str) -> None:
+    await store.create_run_once(
+        {
+            "id": run_id,
+            "task_id": task_id,
+            "user_id": user_id,
+            "scheduler_thread_id": f"thread-{user_id}",
+            "scheduled_for": datetime.now(UTC),
+            "status": "succeeded",
+            "started_at": datetime.now(UTC),
+        }
+    )
+
+
+@pytest.mark.asyncio
+async def test_admin_delete_run_removes_any_owner_run(store):
+    await _seed_run(store, run_id="r1", task_id="t1", user_id="alice")
+    service = _build_service(store)
+
+    assert await service.admin_delete_run("r1") is True
+    assert await store.get_run_any("r1") is None
+
+
+@pytest.mark.asyncio
+async def test_admin_delete_run_missing_returns_false(store):
+    service = _build_service(store)
+    assert await service.admin_delete_run("nope") is False
+
+
+@pytest.mark.asyncio
+async def test_owner_delete_run_still_scoped_to_owner(store):
+    """A non-owner, non-subscriber deleting another user's run gets False."""
+    await _seed_run(store, run_id="r1", task_id="t1", user_id="alice")
+    service = _build_service(store)
+
+    assert await service.delete_run("bob", "r1") is False
+    assert await store.get_run_any("r1") is not None  # untouched
+
+    # The owner can still delete their own run.
+    assert await service.delete_run("alice", "r1") is True
+    assert await store.get_run_any("r1") is None
+
+
+@pytest.mark.asyncio
+async def test_store_delete_run_any_independent_of_owner(store):
+    await _seed_run(store, run_id="r1", task_id="t1", user_id="alice")
+
+    assert await store.delete_run_any("r1") is True
+    assert await store.delete_run_any("r1") is False

offline-backend-20260512/backend/tests/test_scheduled_task_name_uniqueness.py

@@ -0,0 +1,116 @@
+"""Tests for per-user scheduled-task name uniqueness.
+
+Task names are unique per user (``uq_scheduled_tasks_user_name``). The service
+proactively rejects collisions with :class:`DuplicateTaskNameError` so the API
+returns a 409 instead of letting a raw DB ``IntegrityError`` surface as a 500.
+"""
+
+from __future__ import annotations
+
+from datetime import UTC, datetime
+
+import pytest
+
+from deerflow.persistence.scheduled_tasks import MemoryScheduledTaskStore
+from deerflow.runtime.scheduler import DuplicateTaskNameError
+from deerflow.runtime.scheduler.service import ScheduledTaskService
+
+
+@pytest.fixture
+def store() -> MemoryScheduledTaskStore:
+    return MemoryScheduledTaskStore()
+
+
+def _build_service(store: MemoryScheduledTaskStore) -> ScheduledTaskService:
+    service = ScheduledTaskService(app=None, store=store, poll_interval_seconds=60.0)
+    service._element_client = None  # noqa: SLF001
+    return service
+
+
+def _seed_task(store: MemoryScheduledTaskStore, *, task_id: str, user_id: str, name: str) -> dict:
+    task = {
+        "task_id": task_id,
+        "user_id": user_id,
+        "scheduler_thread_id": f"thread-{user_id}",
+        "name": name,
+        "prompt": "hello",
+        "schedule_text": "0 9 * * *",
+        "cron_expr": "0 9 * * *",
+        "timezone": "UTC",
+        "enabled": True,
+        "next_run_at": datetime.now(UTC),
+        "execution_context": {},
+    }
+    store._tasks[task_id] = task  # noqa: SLF001
+    return task
+
+
+@pytest.mark.asyncio
+async def test_create_task_rejects_duplicate_name(store):
+    """A second task with the same (user_id, name) is refused before any insert."""
+    _seed_task(store, task_id="t1", user_id="alice", name="日报")
+    service = _build_service(store)
+
+    with pytest.raises(DuplicateTaskNameError):
+        await service.create_task(user_id="alice", name="日报", prompt="p", schedule="0 9 * * *")
+
+
+@pytest.mark.asyncio
+async def test_create_task_treats_whitespace_padded_name_as_duplicate(store):
+    """The name is trimmed before the uniqueness check, matching what is stored."""
+    _seed_task(store, task_id="t1", user_id="alice", name="日报")
+    service = _build_service(store)
+
+    with pytest.raises(DuplicateTaskNameError):
+        await service.create_task(user_id="alice", name="  日报  ", prompt="p", schedule="0 9 * * *")
+
+
+@pytest.mark.asyncio
+async def test_create_task_allows_same_name_for_different_user(store):
+    """The constraint is per user — another user may reuse the name.
+
+    The create proceeds past the name check and only fails later because the
+    test service has no app wired for scheduler-thread setup; the point here is
+    that no DuplicateTaskNameError is raised.
+    """
+    _seed_task(store, task_id="t1", user_id="alice", name="日报")
+    service = _build_service(store)
+
+    with pytest.raises(Exception) as exc_info:
+        await service.create_task(user_id="bob", name="日报", prompt="p", schedule="0 9 * * *")
+    assert not isinstance(exc_info.value, DuplicateTaskNameError)
+
+
+@pytest.mark.asyncio
+async def test_update_task_rejects_rename_to_existing_name(store):
+    """Renaming a task onto a sibling's name is refused."""
+    _seed_task(store, task_id="t1", user_id="alice", name="日报")
+    _seed_task(store, task_id="t2", user_id="alice", name="周报")
+    service = _build_service(store)
+
+    with pytest.raises(DuplicateTaskNameError):
+        await service.update_task("alice", "t2", {"name": "日报"})
+
+
+@pytest.mark.asyncio
+async def test_update_task_allows_keeping_own_name(store):
+    """Re-saving a task without changing its name is not a self-collision."""
+    _seed_task(store, task_id="t1", user_id="alice", name="日报")
+    service = _build_service(store)
+
+    updated = await service.update_task("alice", "t1", {"name": "日报", "prompt": "new"})
+
+    assert updated is not None
+    assert updated["name"] == "日报"
+    assert updated["prompt"] == "new"
+
+
+@pytest.mark.asyncio
+async def test_admin_update_task_rejects_rename_to_existing_name(store):
+    """Admin cross-user rename still honours the owner's name uniqueness."""
+    _seed_task(store, task_id="t1", user_id="alice", name="日报")
+    _seed_task(store, task_id="t2", user_id="alice", name="周报")
+    service = _build_service(store)
+
+    with pytest.raises(DuplicateTaskNameError):
+        await service.admin_update_task("t2", {"name": "日报"})

offline-backend-20260512/backend/tests/test_scheduled_task_run_lookup.py

@@ -0,0 +1,80 @@
+"""Regression tests for the scheduled-task run lookup helper.
+
+Guards against a recursion bug where ``_load_run`` called itself instead of
+delegating to ``service.get_run`` — every ``GET /api/scheduled-tasks/runs/{id}``
+blew the stack with ``RecursionError`` and returned 500.
+"""
+
+from __future__ import annotations
+
+import pytest
+
+from app.gateway.routers import scheduled_tasks as st
+
+
+class _FakeService:
+    """Records delegation so the test can assert no self-recursion happened."""
+
+    def __init__(self, *, owner_run=None, admin_run=None) -> None:
+        self._owner_run = owner_run
+        self._admin_run = admin_run
+        self.get_run_calls: list[tuple[str, str]] = []
+        self.admin_get_run_calls: list[str] = []
+
+    async def get_run(self, user_id: str, run_id: str):
+        self.get_run_calls.append((user_id, run_id))
+        return self._owner_run
+
+    async def admin_get_run(self, run_id: str):
+        self.admin_get_run_calls.append(run_id)
+        return self._admin_run
+
+
+class _User:
+    def __init__(self, system_role: str | None) -> None:
+        self.system_role = system_role
+
+
+def _patch_user(monkeypatch, user) -> None:
+    async def _fake(_request):
+        return user
+
+    monkeypatch.setattr(st, "get_optional_user_from_request", _fake)
+
+
+@pytest.mark.asyncio
+async def test_load_run_returns_owner_run_without_recursing(monkeypatch):
+    """Owner lookup hits service.get_run exactly once — no self-recursion."""
+    _patch_user(monkeypatch, _User("user"))
+    service = _FakeService(owner_run={"id": "r1"})
+
+    run = await st._load_run(service, object(), "r1", "alice")
+
+    assert run == {"id": "r1"}
+    assert service.get_run_calls == [("alice", "r1")]
+    assert service.admin_get_run_calls == []  # admin fallback skipped when found
+
+
+@pytest.mark.asyncio
+async def test_load_run_admin_fallback_when_owner_miss(monkeypatch):
+    """An admin who is not the owner falls back to admin_get_run."""
+    _patch_user(monkeypatch, _User("admin"))
+    service = _FakeService(owner_run=None, admin_run={"id": "r2"})
+
+    run = await st._load_run(service, object(), "r2", "bob")
+
+    assert run == {"id": "r2"}
+    assert service.get_run_calls == [("bob", "r2")]
+    assert service.admin_get_run_calls == ["r2"]
+
+
+@pytest.mark.asyncio
+async def test_load_run_non_admin_miss_returns_none(monkeypatch):
+    """A non-admin who is not the owner gets None (router turns it into 404)."""
+    _patch_user(monkeypatch, _User("user"))
+    service = _FakeService(owner_run=None, admin_run={"id": "r3"})
+
+    run = await st._load_run(service, object(), "r3", "carol")
+
+    assert run is None
+    assert service.admin_get_run_calls == []  # no admin fallback for non-admins

offline-backend-20260512/backend/tests/test_skill_detail.py

@@ -17,6 +17,7 @@ import pytest
 from app.gateway.routers.skills import (
     SkillDetailRequest,
     SkillResponse,
+    _can_view_skill_source,
     _skill_to_response,
 )
 from deerflow.config import paths as paths_module
@@ -160,3 +161,29 @@ def test_skill_to_response_detail_none_without_ownership(isolated_paths) -> None
     resp = _skill_to_response(skill, None)
     assert resp.detail is None
     assert resp.builtin is True
+
+
+# ---------------------------------------------------------------------------
+# SKILL.md source visibility — admin / publisher only
+# ---------------------------------------------------------------------------
+
+
+def test_admin_can_view_any_skill_source() -> None:
+    # Admin sees a built-in skill's source (no owner).
+    assert _can_view_skill_source(SkillCategory.PUBLIC, None, "user-a", is_admin=True) is True
+    # ...and another user's custom skill.
+    assert _can_view_skill_source(SkillCategory.CUSTOM, "user-b", "user-a", is_admin=True) is True
+
+
+def test_publisher_can_view_own_custom_skill_source() -> None:
+    assert _can_view_skill_source(SkillCategory.CUSTOM, "user-a", "user-a", is_admin=False) is True
+
+
+def test_non_owner_cannot_view_custom_skill_source() -> None:
+    # A different user — even if the skill is published to them — cannot read source.
+    assert _can_view_skill_source(SkillCategory.CUSTOM, "user-b", "user-a", is_admin=False) is False
+
+
+def test_non_admin_cannot_view_builtin_skill_source() -> None:
+    # Built-in / public skills have no publisher, so non-admins never see source.
+    assert _can_view_skill_source(SkillCategory.PUBLIC, None, "user-a", is_admin=False) is False

offline-backend-20260512/config.yaml

@@ -0,0 +1,87 @@
+config_version: 8
+log_level: info
+models:
+- name: deepseek-chat
+  display_name: DeepSeek Chat
+  use: langchain_openai:ChatOpenAI
+  model: deepseek-chat
+  api_key: sk-e1c22b7931dc446f8b67e57878edd105
+  base_url: https://api.deepseek.com
+  request_timeout: 600.0
+  max_retries: 2
+  max_tokens: 4096
+  temperature: 1.0
+  supports_vision: true
+  supports_thinking: true
+- name: deepseek-v4-flash
+  display_name: DeepSeek V4 Flash
+  use: langchain_openai:ChatOpenAI
+  model: deepseek-v4-flash
+  api_key: sk-e1c22b7931dc446f8b67e57878edd105
+  base_url: https://api.deepseek.com
+  request_timeout: 600.0
+  max_retries: 2
+  max_tokens: 4096
+  temperature: 1.0
+  supports_vision: true
+  supports_thinking: true
+- name: deepseek-v4-pro
+  display_name: DeepSeek V4 Pro
+  use: langchain_openai:ChatOpenAI
+  model: deepseek-v4-pro
+  api_key: sk-e1c22b7931dc446f8b67e57878edd105
+  base_url: https://api.deepseek.com
+  request_timeout: 600.0
+  max_retries: 2
+  max_tokens: 4096
+  temperature: 1.0
+  supports_vision: true
+  supports_thinking: true
+tool_groups:
+- name: web
+- name: file:read
+- name: file:write
+- name: bash
+tools:
+- name: web_search
+  group: web
+  use: deerflow.community.ddg_search.tools:web_search_tool
+  max_results: 5
+- name: ls
+  group: file:read
+  use: deerflow.sandbox.tools:ls_tool
+- name: read_file
+  group: file:read
+  use: deerflow.sandbox.tools:read_file_tool
+- name: glob
+  group: file:read
+  use: deerflow.sandbox.tools:glob_tool
+  max_results: 200
+- name: grep
+  group: file:read
+  use: deerflow.sandbox.tools:grep_tool
+  max_results: 100
+- name: write_file
+  group: file:write
+  use: deerflow.sandbox.tools:write_file_tool
+- name: str_replace
+  group: file:write
+  use: deerflow.sandbox.tools:str_replace_tool
+- name: bash
+  group: bash
+  use: deerflow.sandbox.tools:bash_tool
+sandbox:
+  use: deerflow.sandbox.local:LocalSandboxProvider
+  allow_host_bash: true
+skills:
+  path: /app/skills
+agents_api:
+  enabled: true
+database:
+  backend: mysql
+  mysql_url: $MYSQL_DATABASE_URL
+  pool_size: 10
+  echo_sql: false
+checkpointer:
+  type: sqlite
+  connection_string: D:\cursor-work\offline-backend-20260512\backend\.deer-flow\data\deerflow.db

offline-backend-20260512/switch_database_to_mysql.ps1

@@ -0,0 +1,215 @@
+param(
+    [string]$MysqlDatabaseUrl = $env:MYSQL_DATABASE_URL,
+    [string]$MysqlPipPackages = $(if ($env:MYSQL_PIP_PACKAGES) { $env:MYSQL_PIP_PACKAGES } else { "asyncmy==0.2.10" }),
+    [string]$CreateDatabase = $(if ($env:CREATE_DATABASE) { $env:CREATE_DATABASE } else { "1" }),
+    [string]$DropEmptyTargetSchema = $(if ($env:DROP_EMPTY_TARGET_SCHEMA) { $env:DROP_EMPTY_TARGET_SCHEMA } else { "1" }),
+    [string]$TruncateTarget = $(if ($env:TRUNCATE_TARGET) { $env:TRUNCATE_TARGET } else { "0" }),
+    [string]$SqliteDb = $(if ($env:SQLITE_DB) { $env:SQLITE_DB } else { "" }),
+    [string]$ConfigFile = $(if ($env:DEER_FLOW_CONFIG_PATH) { $env:DEER_FLOW_CONFIG_PATH } else { "" }),
+    [string]$EnvFile = $(if ($env:ENV_FILE) { $env:ENV_FILE } else { "" }),
+    [string]$PythonExe = $(if ($env:PYTHON_EXE) { $env:PYTHON_EXE } else { "" })
+)
+
+$ErrorActionPreference = "Stop"
+
+function Die([string]$Message) {
+    Write-Error $Message
+    exit 1
+}
+
+function Require-Command([string]$Name) {
+    if (-not (Get-Command $Name -ErrorAction SilentlyContinue)) {
+        Die "command not found: $Name"
+    }
+}
+
+function Require-File([string]$Path) {
+    if (-not (Test-Path -LiteralPath $Path -PathType Leaf)) {
+        Die "required file not found: $Path"
+    }
+}
+
+function Require-Dir([string]$Path) {
+    if (-not (Test-Path -LiteralPath $Path -PathType Container)) {
+        Die "required directory not found: $Path"
+    }
+}
+
+function Resolve-ExistingFile([string]$Path) {
+    return (Resolve-Path -LiteralPath $Path).Path
+}
+
+function Get-EnvFileValue([string]$Path, [string]$Key) {
+    if (-not (Test-Path -LiteralPath $Path -PathType Leaf)) {
+        return ""
+    }
+    $line = Get-Content -LiteralPath $Path |
+        Where-Object { $_ -match "^\s*$([regex]::Escape($Key))=" } |
+        Select-Object -Last 1
+    if (-not $line) {
+        return ""
+    }
+    return ($line -replace "^\s*$([regex]::Escape($Key))=", "")
+}
+
+function Upsert-EnvFileValue([string]$Path, [string]$Key, [string]$Value) {
+    $existing = @()
+    if (Test-Path -LiteralPath $Path -PathType Leaf) {
+        $existing = Get-Content -LiteralPath $Path | Where-Object { $_ -notmatch "^\s*$([regex]::Escape($Key))=" }
+    }
+    $existing + "$Key=$Value" | Set-Content -LiteralPath $Path -Encoding UTF8
+}
+
+function Is-Enabled([string]$Value) {
+    return @("1", "true", "yes", "on") -contains $Value.ToLowerInvariant()
+}
+
+function Run-Native([string]$Command, [string[]]$Arguments) {
+    & $Command @Arguments
+    if ($LASTEXITCODE -ne 0) {
+        Die "$Command failed with exit code $LASTEXITCODE"
+    }
+}
+
+$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$BackendDir = Join-Path $ScriptDir "backend"
+$DefaultDeerFlowHome = Join-Path $BackendDir ".deer-flow"
+
+if (-not $ConfigFile) {
+    $ConfigFile = Join-Path $ScriptDir "config.yaml"
+}
+if (-not $EnvFile) {
+    $EnvFile = Join-Path $ScriptDir ".env"
+}
+if (-not $SqliteDb) {
+    $SqliteDb = Join-Path $DefaultDeerFlowHome "data\deerflow.db"
+}
+
+if ($PythonExe) {
+    Require-File $PythonExe
+    $PythonExe = Resolve-ExistingFile $PythonExe
+} else {
+    Require-Command uv
+}
+Require-File $EnvFile
+Require-File $ConfigFile
+Require-File $SqliteDb
+Require-File (Join-Path $BackendDir "pyproject.toml")
+Require-File (Join-Path $BackendDir "scripts\migrate_business_sqlite_to_mysql.py")
+Require-File (Join-Path $BackendDir "scripts\update_database_config.py")
+Require-File (Join-Path $ScriptDir "extensions_config.json")
+Require-File (Join-Path $ScriptDir "skill_evolution.json")
+Require-Dir (Join-Path $ScriptDir "skills")
+
+if (-not $MysqlDatabaseUrl) {
+    $MysqlDatabaseUrl = Get-EnvFileValue $EnvFile "MYSQL_DATABASE_URL"
+}
+if (-not $MysqlDatabaseUrl) {
+    Die "MYSQL_DATABASE_URL is required. Example: .\switch_database_to_mysql.ps1 -MysqlDatabaseUrl 'mysql+asyncmy://user:pass@127.0.0.1:3306/deerflow?charset=utf8mb4'"
+}
+
+$ConfigFile = Resolve-ExistingFile $ConfigFile
+$EnvFile = Resolve-ExistingFile $EnvFile
+$SqliteDb = Resolve-ExistingFile $SqliteDb
+$DeerFlowHome = if ($env:DEER_FLOW_HOME) { $env:DEER_FLOW_HOME } else { $DefaultDeerFlowHome }
+New-Item -ItemType Directory -Force -Path $DeerFlowHome | Out-Null
+$DeerFlowHome = (Resolve-Path -LiteralPath $DeerFlowHome).Path
+
+$BackupRoot = Join-Path $DeerFlowHome "backups"
+New-Item -ItemType Directory -Force -Path $BackupRoot | Out-Null
+$Timestamp = Get-Date -Format "yyyyMMdd_HHmmss"
+$BackupDir = Join-Path $BackupRoot "mysql-switch-$Timestamp"
+New-Item -ItemType Directory -Force -Path $BackupDir | Out-Null
+Copy-Item -LiteralPath $ConfigFile -Destination (Join-Path $BackupDir "config.yaml.bak") -Force
+Copy-Item -LiteralPath $EnvFile -Destination (Join-Path $BackupDir "env.bak") -Force
+Copy-Item -LiteralPath $SqliteDb -Destination (Join-Path $BackupDir "deerflow.db.bak") -Force
+
+$env:MYSQL_DATABASE_URL = $MysqlDatabaseUrl
+$env:DEER_FLOW_PROJECT_ROOT = $ScriptDir
+$env:DEER_FLOW_HOME = $DeerFlowHome
+$env:DEER_FLOW_CONFIG_PATH = $ConfigFile
+$env:DEER_FLOW_EXTENSIONS_CONFIG_PATH = Join-Path $ScriptDir "extensions_config.json"
+$env:DEER_FLOW_SKILL_EVOLUTION_CONFIG_PATH = Join-Path $ScriptDir "skill_evolution.json"
+$env:DEER_FLOW_SKILLS_PATH = Join-Path $ScriptDir "skills"
+$PythonPathParts = @(
+    $BackendDir,
+    (Join-Path $BackendDir "packages\harness")
+)
+if ($env:PYTHONPATH) {
+    $PythonPathParts += $env:PYTHONPATH
+}
+$env:PYTHONPATH = ($PythonPathParts -join [IO.Path]::PathSeparator)
+
+Push-Location $BackendDir
+try {
+    $packages = @($MysqlPipPackages -split "\s+" | Where-Object { $_ })
+    if ($PythonExe) {
+        if ($packages.Count -gt 0) {
+            Write-Host "Installing MySQL driver into selected Python environment: $MysqlPipPackages"
+            Run-Native $PythonExe (@("-m", "pip", "install") + $packages)
+        }
+        Run-Native $PythonExe @("-c", "import asyncmy")
+    } else {
+        if (-not (Test-Path -LiteralPath (Join-Path $BackendDir ".venv") -PathType Container)) {
+            Write-Host "Creating local uv virtual environment..."
+            Run-Native "uv" @("venv")
+        }
+
+        if ($packages.Count -gt 0) {
+            Write-Host "Installing MySQL driver into local backend environment: $MysqlPipPackages"
+            Run-Native "uv" (@("pip", "install") + $packages)
+        }
+        Run-Native "uv" @("run", "--no-sync", "python", "-c", "import asyncmy")
+    }
+
+    $migrationArgs = @(
+        "scripts\migrate_business_sqlite_to_mysql.py",
+        "--sqlite", $SqliteDb,
+        "--mysql-url", $MysqlDatabaseUrl
+    )
+    if (Is-Enabled $CreateDatabase) {
+        $migrationArgs += "--create-database"
+    }
+    if (Is-Enabled $DropEmptyTargetSchema) {
+        $migrationArgs += "--drop-empty-target-schema"
+    }
+    if (Is-Enabled $TruncateTarget) {
+        $migrationArgs += "--truncate-target"
+    }
+
+    Write-Host "Backups written to: $BackupDir"
+    Write-Host "Migrating business tables to MySQL..."
+    if ($PythonExe) {
+        Run-Native $PythonExe $migrationArgs
+    } else {
+        Run-Native "uv" (@("run", "--no-sync", "python") + $migrationArgs)
+    }
+
+    $configArgs = @(
+        "scripts\update_database_config.py",
+        "--config", $ConfigFile,
+        "--mysql-url-env", "MYSQL_DATABASE_URL",
+        "--checkpointer-sqlite", $SqliteDb
+    )
+    if ($PythonExe) {
+        Run-Native $PythonExe $configArgs
+    } else {
+        Run-Native "uv" (@("run", "--no-sync", "python") + $configArgs)
+    }
+
+    Upsert-EnvFileValue $EnvFile "MYSQL_DATABASE_URL" $MysqlDatabaseUrl
+}
+finally {
+    Pop-Location
+}
+
+Write-Host ""
+Write-Host "MySQL switch completed."
+Write-Host "  Config updated: $ConfigFile"
+Write-Host "  Env updated:    $EnvFile"
+Write-Host "  Backup dir:     $BackupDir"
+Write-Host ""
+Write-Host "Start the local backend from backend directory, for example:"
+Write-Host "  cd backend"
+Write-Host "  `$env:PYTHONPATH='.'"
+Write-Host "  uv run uvicorn app.gateway.app:app --host 0.0.0.0 --port 8001"

offline-backend-20260512/switch_database_to_mysql.sh

@@ -0,0 +1,166 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+IMAGE_TAG="${IMAGE_TAG:-deerflow-backend-offline:20260505}"
+CONTAINER_NAME="${CONTAINER_NAME:-deerflow-backend}"
+IMAGE_TAR="${IMAGE_TAR:-${SCRIPT_DIR}/deerflow-backend-offline-image-20260505.tar}"
+MYSQL_DRIVER_IMPORT="${MYSQL_DRIVER_IMPORT:-asyncmy}"
+MYSQL_PIP_PACKAGES="${MYSQL_PIP_PACKAGES:-asyncmy==0.2.10}"
+CREATE_DATABASE="${CREATE_DATABASE:-1}"
+DROP_EMPTY_TARGET_SCHEMA="${DROP_EMPTY_TARGET_SCHEMA:-1}"
+TRUNCATE_TARGET="${TRUNCATE_TARGET:-0}"
+SQLITE_DB_HOST="${SQLITE_DB_HOST:-${SCRIPT_DIR}/data/data/deerflow.db}"
+SQLITE_DB_CONTAINER="${SQLITE_DB_CONTAINER:-/app/backend/.deer-flow/data/deerflow.db}"
+VENDOR_DIR_CONTAINER="${VENDOR_DIR_CONTAINER:-/app/backend/.deer-flow/python-vendor}"
+
+die() {
+  echo "ERROR: $*" >&2
+  exit 1
+}
+
+require_cmd() {
+  command -v "$1" >/dev/null 2>&1 || die "command not found: $1"
+}
+
+require_file() {
+  [ -f "$1" ] || die "required file not found: $1"
+}
+
+read_env_value() {
+  local key="$1"
+  [ -f "${SCRIPT_DIR}/.env" ] || return 0
+  grep -E "^[[:space:]]*${key}=" "${SCRIPT_DIR}/.env" 2>/dev/null | tail -n 1 | sed 's/^[^=]*=//'
+}
+
+upsert_env_key() {
+  local key="$1"
+  local value="$2"
+  local tmp
+  tmp="$(mktemp "${SCRIPT_DIR}/.env.mysql-switch.XXXXXX")"
+  grep -Ev "^[[:space:]]*${key}=" "${SCRIPT_DIR}/.env" >"${tmp}" || true
+  printf '%s=%s\n' "${key}" "${value}" >>"${tmp}"
+  mv "${tmp}" "${SCRIPT_DIR}/.env"
+}
+
+require_cmd docker
+require_file "${SCRIPT_DIR}/.env"
+require_file "${SCRIPT_DIR}/config.yaml"
+require_file "${SCRIPT_DIR}/backend/pyproject.toml"
+require_file "${SCRIPT_DIR}/backend/app/gateway/app.py"
+require_file "${SCRIPT_DIR}/backend/scripts/migrate_business_sqlite_to_mysql.py"
+require_file "${SCRIPT_DIR}/backend/scripts/update_database_config.py"
+require_file "${SCRIPT_DIR}/extensions_config.json"
+require_file "${SCRIPT_DIR}/skill_evolution.json"
+[ -d "${SCRIPT_DIR}/skills" ] || die "required directory not found: ${SCRIPT_DIR}/skills"
+[ -d "${SCRIPT_DIR}/wheelhouse" ] || die "required directory not found: ${SCRIPT_DIR}/wheelhouse"
+
+MYSQL_DATABASE_URL="${MYSQL_DATABASE_URL:-$(read_env_value MYSQL_DATABASE_URL)}"
+[ -n "${MYSQL_DATABASE_URL}" ] || die "MYSQL_DATABASE_URL is required. Example: MYSQL_DATABASE_URL='mysql+asyncmy://user:pass@host:3306/deerflow?charset=utf8mb4' bash switch_database_to_mysql.sh"
+
+if docker ps --format '{{.Names}}' | awk -v name="${CONTAINER_NAME}" '$0 == name { found=1 } END { exit(found ? 0 : 1) }'; then
+  die "container ${CONTAINER_NAME} is running. Stop the backend first: bash stop_backend.sh"
+fi
+
+require_file "${SQLITE_DB_HOST}"
+mkdir -p "${SCRIPT_DIR}/data/backups"
+
+timestamp="$(date +%Y%m%d_%H%M%S)"
+backup_dir="${SCRIPT_DIR}/data/backups/mysql-switch-${timestamp}"
+mkdir -p "${backup_dir}"
+cp "${SCRIPT_DIR}/config.yaml" "${backup_dir}/config.yaml.bak"
+cp "${SCRIPT_DIR}/.env" "${backup_dir}/env.bak"
+cp "${SQLITE_DB_HOST}" "${backup_dir}/deerflow.db.bak"
+
+upsert_env_key "MYSQL_DATABASE_URL" "${MYSQL_DATABASE_URL}"
+
+if ! docker image inspect "${IMAGE_TAG}" >/dev/null 2>&1; then
+  require_file "${IMAGE_TAR}"
+  echo "Loading Docker image from ${IMAGE_TAR}"
+  docker load -i "${IMAGE_TAR}"
+fi
+
+if docker ps -a --format '{{.Names}}' | awk -v name="${CONTAINER_NAME}-mysql-switch" '$0 == name { found=1 } END { exit(found ? 0 : 1) }'; then
+  docker rm -f "${CONTAINER_NAME}-mysql-switch" >/dev/null
+fi
+
+echo "Backups written to: ${backup_dir}"
+echo "Migrating business tables to MySQL..."
+
+docker run --rm \
+  --name "${CONTAINER_NAME}-mysql-switch" \
+  --env-file "${SCRIPT_DIR}/.env" \
+  -e MYSQL_DATABASE_URL="${MYSQL_DATABASE_URL}" \
+  -e MYSQL_DRIVER_IMPORT="${MYSQL_DRIVER_IMPORT}" \
+  -e MYSQL_PIP_PACKAGES="${MYSQL_PIP_PACKAGES}" \
+  -e CREATE_DATABASE="${CREATE_DATABASE}" \
+  -e DROP_EMPTY_TARGET_SCHEMA="${DROP_EMPTY_TARGET_SCHEMA}" \
+  -e TRUNCATE_TARGET="${TRUNCATE_TARGET}" \
+  -e VENDOR_DIR_CONTAINER="${VENDOR_DIR_CONTAINER}" \
+  -e DEER_FLOW_PROJECT_ROOT=/app \
+  -e DEER_FLOW_HOME=/app/backend/.deer-flow \
+  -e DEER_FLOW_CONFIG_PATH=/app/config.yaml \
+  -e DEER_FLOW_EXTENSIONS_CONFIG_PATH=/app/extensions_config.json \
+  -e DEER_FLOW_SKILL_EVOLUTION_CONFIG_PATH=/app/skill_evolution.json \
+  -e DEER_FLOW_SKILLS_PATH=/app/skills \
+  -e UV_LINK_MODE=copy \
+  -v "${SCRIPT_DIR}/backend/app:/app/backend/app" \
+  -v "${SCRIPT_DIR}/backend/packages:/app/backend/packages" \
+  -v "${SCRIPT_DIR}/backend/scripts:/app/backend/scripts" \
+  -v "${SCRIPT_DIR}/backend/pyproject.toml:/app/backend/pyproject.toml:ro" \
+  -v "${SCRIPT_DIR}/backend/uv.lock:/app/backend/uv.lock:ro" \
+  -v "${SCRIPT_DIR}/backend/langgraph.json:/app/backend/langgraph.json:ro" \
+  -v "${SCRIPT_DIR}/config.yaml:/app/config.yaml" \
+  -v "${SCRIPT_DIR}/extensions_config.json:/app/extensions_config.json:ro" \
+  -v "${SCRIPT_DIR}/skill_evolution.json:/app/skill_evolution.json:ro" \
+  -v "${SCRIPT_DIR}/skills:/app/skills:ro" \
+  -v "${SCRIPT_DIR}/wheelhouse:/app/wheelhouse:ro" \
+  -v "${SCRIPT_DIR}/data:/app/backend/.deer-flow" \
+  "${IMAGE_TAG}" \
+  sh -c '
+set -eu
+cd /app/backend
+mkdir -p "${VENDOR_DIR_CONTAINER:-/app/backend/.deer-flow/python-vendor}"
+export PYTHONPATH=".:${VENDOR_DIR_CONTAINER:-/app/backend/.deer-flow/python-vendor}"
+
+if ! uv run --no-sync python -c "import ${MYSQL_DRIVER_IMPORT:-asyncmy}" >/dev/null 2>&1; then
+  echo "Installing ${MYSQL_PIP_PACKAGES:-asyncmy==0.2.10} into ${VENDOR_DIR_CONTAINER:-/app/backend/.deer-flow/python-vendor}"
+  uv pip install \
+    --target "${VENDOR_DIR_CONTAINER:-/app/backend/.deer-flow/python-vendor}" \
+    --no-index \
+    --find-links /app/wheelhouse \
+    ${MYSQL_PIP_PACKAGES:-asyncmy==0.2.10}
+fi
+
+MIGRATION_FLAGS=""
+if [ "${CREATE_DATABASE:-1}" = "1" ]; then
+  MIGRATION_FLAGS="${MIGRATION_FLAGS} --create-database"
+fi
+if [ "${DROP_EMPTY_TARGET_SCHEMA:-1}" = "1" ]; then
+  MIGRATION_FLAGS="${MIGRATION_FLAGS} --drop-empty-target-schema"
+fi
+if [ "${TRUNCATE_TARGET:-0}" = "1" ]; then
+  MIGRATION_FLAGS="${MIGRATION_FLAGS} --truncate-target"
+fi
+
+uv run --no-sync python scripts/migrate_business_sqlite_to_mysql.py \
+  --sqlite "'"${SQLITE_DB_CONTAINER}"'" \
+  --mysql-url "${MYSQL_DATABASE_URL}" \
+  --vendor-dir "${VENDOR_DIR_CONTAINER:-/app/backend/.deer-flow/python-vendor}" \
+  ${MIGRATION_FLAGS}
+
+uv run --no-sync python scripts/update_database_config.py \
+  --config /app/config.yaml \
+  --mysql-url-env MYSQL_DATABASE_URL \
+  --checkpointer-sqlite "'"${SQLITE_DB_CONTAINER}"'"
+'
+
+echo
+echo "MySQL switch completed."
+echo "  Config updated: ${SCRIPT_DIR}/config.yaml"
+echo "  Env updated:    ${SCRIPT_DIR}/.env"
+echo "  Backup dir:     ${backup_dir}"
+echo
+echo "Start backend with the unchanged script:"
+echo "  bash start_backend.sh"