diff --git a/frontend-web/src/components/workspace/agents/agent-manage-dialog.tsx b/frontend-web/src/components/workspace/agents/agent-manage-dialog.tsx
index 03231c51..5cebb4e5 100644
--- a/frontend-web/src/components/workspace/agents/agent-manage-dialog.tsx
+++ b/frontend-web/src/components/workspace/agents/agent-manage-dialog.tsx
@@ -222,6 +222,7 @@ export function AgentManageDialog({
                       key={agent.id}
                       value={`${agent.name} ${agent.description ?? ""}`}
                       onSelect={() => void add(agent)}
+                      className="flex min-w-0 items-center overflow-hidden"
                     >
                       <BotIcon className="text-muted-foreground mr-2 size-4 shrink-0" />
                       <div className="flex min-w-0 flex-1 flex-col">
diff --git a/frontend-web/src/components/workspace/agents/agent-selector.tsx b/frontend-web/src/components/workspace/agents/agent-selector.tsx
index 1a196922..dc1d43f8 100644
--- a/frontend-web/src/components/workspace/agents/agent-selector.tsx
+++ b/frontend-web/src/components/workspace/agents/agent-selector.tsx
@@ -120,7 +120,7 @@ export function AgentSelector({
                       value={`${agent.name} ${agent.description ?? ""}`}
                       onSelect={() => handleSelect(agent)}
                       className={cn(
-                        "flex items-center gap-2",
+                        "flex min-w-0 items-center gap-2 overflow-hidden",
                         agent.id === selectedAgentId && "bg-accent",
                       )}
                     >
diff --git a/frontend-web/src/components/workspace/custom-prompt-menu.tsx b/frontend-web/src/components/workspace/custom-prompt-menu.tsx
index ccce3b77..1f9b0a3b 100644
--- a/frontend-web/src/components/workspace/custom-prompt-menu.tsx
+++ b/frontend-web/src/components/workspace/custom-prompt-menu.tsx
@@ -29,6 +29,7 @@ import {
 import { Switch } from "@/components/ui/switch";
 import { Textarea } from "@/components/ui/textarea";
 import { useAgents } from "@/core/agents/hooks";
+import { getStoredAuth } from "@/core/auth";
 import {
   useCreateCustomPrompt,
   useCustomPrompts,
@@ -42,16 +43,6 @@ import {
 import { desensitize } from "@/lib/desensitize";
 import { cn } from "@/lib/utils";
 
-/** Sentinel select value for "no agent association" (global prompt). */
-const NO_AGENT = "__global__";
-
-/**
- * Bar above the chat input showing the user's saved prompts as centered,
- * clickable chips. When there are too many to fit, they become a horizontal
- * carousel (arrows appear). A gear pinned to the far right opens the manage
- * dialog. Prompts are bound to the account (server-backed), and this coexists
- * with the admin-configured global prompt prefix.
- */
 export function CustomPromptBar({
   onInsert,
   className,
@@ -59,19 +50,13 @@ export function CustomPromptBar({
 }: {
   onInsert: (content: string) => void;
   className?: string;
-  /**
-   * The agent currently selected for this chat (or null on the general
-   * new-chat page). Agent-associated prompts only show when their ``agent_id``
-   * matches; un-associated (global) prompts always show.
-   */
   currentAgentId?: string | null;
 }) {
   const allPrompts = useCustomPrompts();
   const prompts = allPrompts.filter(
-    (p) => !p.agent_id || p.agent_id === currentAgentId,
+    (prompt) => !prompt.agent_id || prompt.agent_id === currentAgentId,
   );
   const [manageOpen, setManageOpen] = useState(false);
-
   const scrollRef = useRef<HTMLDivElement>(null);
   const [canLeft, setCanLeft] = useState(false);
   const [canRight, setCanRight] = useState(false);
@@ -87,7 +72,7 @@ export function CustomPromptBar({
     updateArrows();
     window.addEventListener("resize", updateArrows);
     return () => window.removeEventListener("resize", updateArrows);
-  }, [updateArrows, prompts]);
+  }, [prompts, updateArrows]);
 
   const scrollByDir = (dir: 1 | -1) => {
     scrollRef.current?.scrollBy({ left: dir * 220, behavior: "smooth" });
@@ -97,7 +82,7 @@ export function CustomPromptBar({
 
   return (
     <>
-      <div className={cn("flex items-center gap-1", className)}>
+      <div className={cn("flex min-w-0 items-center gap-1", className)}>
         {prompts.length > 0 && (
           <>
             {overflowing && (
@@ -116,7 +101,7 @@ export function CustomPromptBar({
             <div
               ref={scrollRef}
               onScroll={updateArrows}
-              className="flex-1 overflow-x-auto [-ms-overflow-style:none] [scrollbar-width:none] [&::-webkit-scrollbar]:hidden"
+              className="min-w-0 flex-1 overflow-x-auto [-ms-overflow-style:none] [scrollbar-width:none] [&::-webkit-scrollbar]:hidden"
             >
               <div className="mx-auto flex w-max items-center gap-1.5 px-0.5 py-0.5">
                 {prompts.map((prompt) => (
@@ -150,7 +135,7 @@ export function CustomPromptBar({
             )}
           </>
         )}
-        {prompts.length === 0 && <div className="flex-1" />}
+        {prompts.length === 0 && <div className="min-w-0 flex-1" />}
         <Button
           type="button"
           variant="ghost"
@@ -183,34 +168,33 @@ function ManagePromptsDialog({
   const { agents } = useAgents();
   const preferences = useUserPreferences();
   const updatePreferences = useUpdateUserPreferences();
+  const currentUserId = getStoredAuth()?.user_id ?? null;
   const [editingId, setEditingId] = useState<string | null>(null);
   const [title, setTitle] = useState("");
   const [content, setContent] = useState("");
-  const [agentId, setAgentId] = useState<string>(NO_AGENT);
+  const [agentId, setAgentId] = useState<string | undefined>(undefined);
 
   const saving = createPrompt.isPending || updatePrompt.isPending;
 
-  const agentNameById = (id?: string | null) =>
-    id ? agents.find((a) => a.id === id)?.name ?? null : null;
-
-  // Only offer the agents the user has favorited (收藏到「我的」) for
-  // association — the full catalog is huge, mostly irrelevant, and overflowed
-  // the dropdown. The agent a prompt is *already* bound to is kept in the list
-  // even if it is no longer a favorite, so editing never silently drops it.
   const selectableAgents = useMemo(() => {
-    const favorites = agents.filter((a) => a.is_favorite);
-    if (agentId !== NO_AGENT && !favorites.some((a) => a.id === agentId)) {
-      const bound = agents.find((a) => a.id === agentId);
-      if (bound) return [bound, ...favorites];
+    const owned = currentUserId
+      ? agents.filter((agent) => agent.user_id === currentUserId)
+      : [];
+    if (agentId && !owned.some((agent) => agent.id === agentId)) {
+      const bound = agents.find((agent) => agent.id === agentId);
+      if (bound) return [bound, ...owned];
     }
-    return favorites;
-  }, [agents, agentId]);
+    return owned;
+  }, [agents, agentId, currentUserId]);
+
+  const agentNameById = (id?: string | null) =>
+    id ? agents.find((agent) => agent.id === id)?.name ?? null : null;
 
   const resetForm = () => {
     setEditingId(null);
     setTitle("");
     setContent("");
-    setAgentId(NO_AGENT);
+    setAgentId(undefined);
   };
 
   const handleSubmit = async () => {
@@ -219,19 +203,23 @@ function ManagePromptsDialog({
       toast.error("提示词内容不能为空");
       return;
     }
-    const boundAgentId = agentId === NO_AGENT ? null : agentId;
+    if (!agentId) {
+      toast.error("请选择关联智能体");
+      return;
+    }
+
     try {
       if (editingId) {
         await updatePrompt.mutateAsync({
           id: editingId,
-          input: { title: trimmedTitle, content, agent_id: boundAgentId },
+          input: { title: trimmedTitle, content, agent_id: agentId },
         });
         toast.success("提示词已更新");
       } else {
         await createPrompt.mutateAsync({
           title: trimmedTitle,
           content,
-          agent_id: boundAgentId,
+          agent_id: agentId,
         });
         toast.success("提示词已添加");
       }
@@ -242,12 +230,12 @@ function ManagePromptsDialog({
   };
 
   const handleEdit = (id: string) => {
-    const target = prompts.find((p) => p.id === id);
+    const target = prompts.find((prompt) => prompt.id === id);
     if (!target) return;
     setEditingId(id);
     setTitle(target.title);
     setContent(target.content);
-    setAgentId(target.agent_id || NO_AGENT);
+    setAgentId(target.agent_id || undefined);
   };
 
   const handleToggleHideAdmin = async (next: boolean) => {
@@ -262,6 +250,7 @@ function ManagePromptsDialog({
     try {
       await deletePrompt.mutateAsync(id);
       if (editingId === id) resetForm();
+      toast.success("提示词已删除");
     } catch (err) {
       toast.error(err instanceof Error ? err.message : String(err));
     }
@@ -279,7 +268,7 @@ function ManagePromptsDialog({
         <DialogHeader>
           <DialogTitle>管理常用提示词</DialogTitle>
           <DialogDescription>
-            保存常用的提示词，保存后会以小标签形式显示在输入框上方，点击即可填入。提示词与你的账号绑定，可跨设备使用。
+            保存常用提示词后，会显示在输入框上方。提示词与账号绑定，可跨设备使用。
           </DialogDescription>
         </DialogHeader>
 
@@ -287,41 +276,44 @@ function ManagePromptsDialog({
           <div className="min-w-0">
             <p className="text-sm font-medium">只用我自己的提示词</p>
             <p className="text-muted-foreground mt-0.5 text-xs">
-              开启后，输入框不再显示管理员配置的提示词（提示词前缀）开关，本账号仅使用自己保存的提示词。
+              开启后，输入框不再显示管理员配置的提示词前缀开关，本账号仅使用自己保存的提示词。
             </p>
           </div>
           <Switch
             checked={preferences.hide_admin_prompt_prefix}
             disabled={updatePreferences.isPending}
-            onCheckedChange={(v) => void handleToggleHideAdmin(v)}
+            onCheckedChange={(value) => void handleToggleHideAdmin(value)}
           />
         </div>
 
         <div className="space-y-3 rounded-md border p-3">
           <Input
             value={title}
-            onChange={(e) => setTitle(e.target.value)}
+            onChange={(event) => setTitle(event.target.value)}
             placeholder="名称（可选，例如：周报总结）"
           />
           <Textarea
             value={content}
-            onChange={(e) => setContent(e.target.value)}
+            onChange={(event) => setContent(event.target.value)}
             placeholder="提示词内容"
             className="min-h-28"
           />
-          <div className="flex flex-col gap-1">
-            <p className="text-muted-foreground text-xs">关联智能体（可选）</p>
+          <div className="flex min-w-0 flex-col gap-1">
+            <p className="text-muted-foreground text-xs">关联智能体</p>
             <Select value={agentId} onValueChange={setAgentId}>
               <SelectTrigger className="w-full min-w-0 max-w-full overflow-hidden [&>span]:min-w-0 [&>span]:flex-1 [&>span]:truncate [&>span]:text-left">
-                <SelectValue placeholder="不关联（所有对话可见）" />
+                <SelectValue placeholder="请选择已配置的智能体" />
               </SelectTrigger>
               <SelectContent
                 position="popper"
-                className="max-h-[40vh] w-[var(--radix-select-trigger-width)] max-w-[var(--radix-select-trigger-width)]"
+                className="max-h-[40vh] w-[var(--radix-select-trigger-width)] max-w-[var(--radix-select-trigger-width)] overflow-hidden"
               >
-                <SelectItem value={NO_AGENT}>不关联（所有对话可见）</SelectItem>
                 {selectableAgents.map((agent) => (
-                  <SelectItem key={agent.id} value={agent.id} className="pr-8">
+                  <SelectItem
+                    key={agent.id}
+                    value={agent.id}
+                    className="max-w-full pr-8"
+                  >
                     <span className="block max-w-full truncate">
                       {desensitize(agent.name)}
                     </span>
@@ -331,13 +323,18 @@ function ManagePromptsDialog({
             </Select>
             <p className="text-muted-foreground text-xs">
               {selectableAgents.length === 0
-                ? "仅可关联你收藏到「我的」的常用智能体；当前还没有收藏任何智能体。"
-                : "关联后，仅在选中该智能体的对话里显示此提示词。这里只列出你收藏的常用智能体。"}
+                ? "当前账号还没有已配置的智能体。"
+                : "关联后，仅在选中该智能体的对话里显示此提示词。"}
             </p>
           </div>
           <div className="flex justify-end gap-2">
             {editingId && (
-              <Button variant="outline" size="sm" onClick={resetForm} disabled={saving}>
+              <Button
+                variant="outline"
+                size="sm"
+                onClick={resetForm}
+                disabled={saving}
+              >
                 取消编辑
               </Button>
             )}
diff --git a/frontend-web/src/core/user-preferences/index.ts b/frontend-web/src/core/user-preferences/index.ts
index 4e6866cd..3d2d31c9 100644
--- a/frontend-web/src/core/user-preferences/index.ts
+++ b/frontend-web/src/core/user-preferences/index.ts
@@ -48,6 +48,13 @@ export function useUserPreferences(): UserPreferences {
   return data ?? DEFAULT_PREFS;
 }
 
+export function useUserPreferencesQuery() {
+  return useQuery({
+    queryKey: QUERY_KEY,
+    queryFn: getUserPreferences,
+  });
+}
+
 export function useUpdateUserPreferences() {
   const queryClient = useQueryClient();
   return useMutation({
diff --git a/frontend-web/src/pages/ChatPage.tsx b/frontend-web/src/pages/ChatPage.tsx
index 8172dce2..fd3f34cd 100644
--- a/frontend-web/src/pages/ChatPage.tsx
+++ b/frontend-web/src/pages/ChatPage.tsx
@@ -5,7 +5,7 @@ import { useCallback, useEffect, useMemo, useState } from "react";
 
 import { type PromptInputMessage } from "@/components/ai-elements/prompt-input";
 import { usePromptPrefixSettings } from "@/core/system-settings/hooks";
-import { useUserPreferences } from "@/core/user-preferences";
+import { useUserPreferencesQuery } from "@/core/user-preferences";
 import { ArtifactTrigger, useArtifacts } from "@/components/workspace/artifacts";
 import {
   ChatBox,
@@ -53,7 +53,9 @@ export default function ChatPage() {
   const { data: promptPrefixSettings } = usePromptPrefixSettings();
   // Personal opt-out: when set, hide the admin prompt-prefix switch entirely and
   // never apply the prefix — the user uses only their own prompts.
-  const { hide_admin_prompt_prefix: hideAdminPrompt } = useUserPreferences();
+  const { data: userPreferences, isLoading: preferencesLoading } =
+    useUserPreferencesQuery();
+  const hideAdminPrompt = userPreferences?.hide_admin_prompt_prefix === true;
   const [promptPrefixOn, setPromptPrefixOn] = useState(false);
   const [selectedAgentId, setSelectedAgentId] = useState<string | null>(null);
   const { agents: selectorAgents, isLoading: selectorLoading } =
@@ -163,6 +165,7 @@ export default function ChatPage() {
         isNewThread &&
         !hasStartedConversation &&
         promptPrefixOn &&
+        !preferencesLoading &&
         !hideAdminPrompt &&
         promptPrefixSettings?.enabled === true;
       setHasStartedConversation(true);
@@ -195,6 +198,7 @@ export default function ChatPage() {
       promptPrefixOn,
       promptPrefixSettings,
       hideAdminPrompt,
+      preferencesLoading,
       selectedAgentId,
       router,
       settings.context.writing_mode,
@@ -223,6 +227,7 @@ export default function ChatPage() {
 
   const promptPrefixProp = useMemo(() => {
     if (!promptPrefixSettings?.enabled) return undefined;
+    if (preferencesLoading) return undefined;
     // Personal opt-out hides the admin prompt-prefix switch entirely.
     if (hideAdminPrompt) return undefined;
     // The prefix toggle is offered only on the opening turn of a new thread.
@@ -235,6 +240,7 @@ export default function ChatPage() {
   }, [
     promptPrefixSettings,
     hideAdminPrompt,
+    preferencesLoading,
     isNewThread,
     hasStartedConversation,
     promptPrefixOn,
diff --git a/frontend-web/src/pages/PublicScheduledTaskPage.tsx b/frontend-web/src/pages/PublicScheduledTaskPage.tsx
index 3da475e9..438632fa 100644
--- a/frontend-web/src/pages/PublicScheduledTaskPage.tsx
+++ b/frontend-web/src/pages/PublicScheduledTaskPage.tsx
@@ -257,6 +257,7 @@ function stripTimestampSuffix(title: string): string {
 }
 
 const BODY_TAB_VALUE = "__body__";
+const HTML_TAB_VALUE = "__html__";
 const RUN_LIST_COLLAPSED_WIDTH = 56;
 const RUN_LIST_DEFAULT_WIDTH = 380;
 const RUN_LIST_MIN_WIDTH = 280;
@@ -427,12 +428,8 @@ export default function PublicScheduledTaskPage() {
           className="relative flex min-h-0 shrink-0 transition-[width] duration-200 ease-out"
           style={{ width: visibleRunListWidth }}
         >
-          <Card
-            className={cn(
-              "flex min-h-0 w-full flex-col overflow-hidden",
-              !runListExpanded && "pointer-events-none [&>*]:invisible",
-            )}
-          >
+          {runListExpanded ? (
+          <Card className="flex min-h-0 w-full flex-col overflow-hidden">
           <CardHeader className="gap-1">
             <div className="flex items-start justify-between gap-2">
               <Tooltip>
@@ -447,9 +444,21 @@ export default function PublicScheduledTaskPage() {
                   </TooltipContent>
                 )}
               </Tooltip>
-              <Badge variant={task?.enabled ? "default" : "secondary"} className="shrink-0">
-                {task?.enabled ? "启用" : "暂停"}
-              </Badge>
+              <div className="flex shrink-0 items-center gap-1">
+                <Badge variant={task?.enabled ? "default" : "secondary"}>
+                  {task?.enabled ? "启用" : "暂停"}
+                </Badge>
+                <Button
+                  size="icon"
+                  variant="ghost"
+                  className="text-muted-foreground hover:text-primary size-7"
+                  onClick={collapseRunList}
+                  title="收起执行记录列表"
+                  aria-label="收起执行记录列表"
+                >
+                  <ChevronLeft className="size-4" />
+                </Button>
+              </div>
             </div>
             {task?.description && task.description.trim() && (
               <p className="text-muted-foreground line-clamp-3 text-xs leading-relaxed break-all whitespace-pre-wrap">
@@ -552,15 +561,20 @@ export default function PublicScheduledTaskPage() {
             </ScrollArea>
           </CardContent>
           </Card>
-          <button
-            type="button"
-            onClick={runListExpanded ? collapseRunList : expandRunList}
-            className="bg-background text-muted-foreground hover:bg-accent hover:text-primary focus-visible:ring-ring absolute top-3 left-1/2 z-30 flex size-9 -translate-x-1/2 items-center justify-center rounded-md border shadow-sm transition-colors focus:outline-none focus-visible:ring-2"
-            title={runListExpanded ? "收起执行记录列表" : "展开执行记录列表"}
-            aria-label={runListExpanded ? "收起执行记录列表" : "展开执行记录列表"}
-          >
-            {runListExpanded ? <ChevronLeft className="size-4" /> : <List className="size-4" />}
-          </button>
+          ) : (
+            <Card className="flex min-h-0 w-full flex-col items-center overflow-hidden py-3">
+              <Button
+                size="icon"
+                variant="ghost"
+                className="text-muted-foreground hover:text-primary"
+                onClick={expandRunList}
+                title="展开执行记录列表"
+                aria-label="展开执行记录列表"
+              >
+                <List className="size-4" />
+              </Button>
+            </Card>
+          )}
           <div
             role="separator"
             aria-orientation="vertical"
@@ -638,12 +652,14 @@ export default function PublicScheduledTaskPage() {
 }
 
 type ContentTab = {
-  /** Stable tab identifier — `__body__` for inline content, `file-<index>` for files. */
+  /** Stable tab identifier — `__html__` for the HTML preview, `__body__` for
+   * inline content, `file-<index>` for files. */
   value: string;
   /** Short label rendered in the TabsTrigger. */
   label: string;
-  /** Distinguishes body vs MD attachment so the editor knows which PUT to call. */
-  kind: "body" | "file";
+  /** Distinguishes the HTML preview vs body vs MD attachment so the renderer /
+   * editor knows what to show and which PUT to call. */
+  kind: "body" | "file" | "html";
   /** File index (when `kind === "file"`). */
   fileIndex?: number;
   /** Filename for downloads (defaults to the run title for body). */
@@ -684,17 +700,27 @@ function RunDetailPane({ run, taskId }: { run: PublicRun; taskId: string }) {
     [run.result?.files],
   );
 
-  // Tabs: every MD file first (priority per spec), then the inline body.
+  // Tabs: HTML preview first (when present), then every MD file, then the
+  // inline body. For an HTML run that also produced a Markdown file, this keeps
+  // the page preview AND surfaces the .md instead of hiding it. The generated
+  // HTML document itself is never listed as a downloadable "file" tab — it has
+  // its own preview.
   const tabs: ContentTab[] = useMemo(() => {
-    const list: ContentTab[] = markdownFiles.map((file, idx) => ({
-      value: `file-${file.index}`,
-      // Show the actual filename without the `.md` suffix — the user explicitly
-      // asked for "no '文件' label, just the name without extension".
-      label: stripExtension(file.name) || `文件 ${idx + 1}`,
-      kind: "file",
-      fileIndex: file.index,
-      fileName: file.name,
-    }));
+    const list: ContentTab[] = [];
+    if (isHtmlRun) {
+      list.push({ value: HTML_TAB_VALUE, label: "HTML 预览", kind: "html" });
+    }
+    list.push(
+      ...markdownFiles.map((file, idx) => ({
+        value: `file-${file.index}`,
+        // Show the actual filename without the `.md` suffix — the user explicitly
+        // asked for "no '文件' label, just the name without extension".
+        label: stripExtension(file.name) || `文件 ${idx + 1}`,
+        kind: "file" as const,
+        fileIndex: file.index,
+        fileName: file.name,
+      })),
+    );
     list.push({
       value: BODY_TAB_VALUE,
       label: "正文",
@@ -702,7 +728,7 @@ function RunDetailPane({ run, taskId }: { run: PublicRun; taskId: string }) {
       fileName: run.result?.title || "scheduled-task-result",
     });
     return list;
-  }, [markdownFiles, run.result?.title]);
+  }, [isHtmlRun, markdownFiles, run.result?.title]);
 
   const [activeTab, setActiveTab] = useState<string>(tabs[0]?.value ?? BODY_TAB_VALUE);
 
@@ -843,13 +869,13 @@ function RunDetailPane({ run, taskId }: { run: PublicRun; taskId: string }) {
               下载原文件
             </a>
           )}
-          {!isHtmlRun && (
+          {activeTabMeta?.kind !== "html" && (
             <Button size="sm" variant="outline" onClick={handleDownloadWord}>
               <FileText className="size-4" />
               下载 Word
             </Button>
           )}
-          {!isHtmlRun &&
+          {activeTabMeta?.kind !== "html" &&
             (isEditing ? (
               <>
                 <Button
@@ -895,22 +921,7 @@ function RunDetailPane({ run, taskId }: { run: PublicRun; taskId: string }) {
       </CardHeader>
 
       <CardContent className="min-h-0 flex-1 overflow-hidden p-0">
-        {isHtmlRun ? (
-          <div className="h-full p-4">
-            {htmlContent ? (
-              <iframe
-                title="HTML 预览"
-                sandbox="allow-same-origin"
-                srcDoc={htmlContent}
-                className="h-full min-h-[60vh] w-full rounded-md border bg-white"
-              />
-            ) : (
-              <div className="text-muted-foreground rounded-md border p-3 text-sm">
-                HTML 页面尚未生成或正在生成中。
-              </div>
-            )}
-          </div>
-        ) : tabs.length === 0 ? (
+        {tabs.length === 0 ? (
           <div className="text-muted-foreground p-6 text-sm">无可用内容。</div>
         ) : (
           <Tabs
@@ -940,7 +951,20 @@ function RunDetailPane({ run, taskId }: { run: PublicRun; taskId: string }) {
                   {run.error}
                 </div>
               )}
-              {fileIsLoading ? (
+              {activeTabMeta?.kind === "html" ? (
+                htmlContent ? (
+                  <iframe
+                    title="HTML 预览"
+                    sandbox="allow-same-origin"
+                    srcDoc={htmlContent}
+                    className="min-h-[60vh] w-full flex-1 rounded-md border bg-white"
+                  />
+                ) : (
+                  <div className="text-muted-foreground rounded-md border p-3 text-sm">
+                    HTML 页面尚未生成或正在生成中。
+                  </div>
+                )
+              ) : fileIsLoading ? (
                 <div className="text-muted-foreground flex items-center gap-2 text-sm">
                   <Loader2 className="size-4 animate-spin" />
                   正在加载文件内容...
diff --git a/frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx b/frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx
index fe01f2e5..31bc8438 100644
--- a/frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx
+++ b/frontend-web/src/pages/ScheduledTaskRunDetailPage.tsx
@@ -270,7 +270,16 @@ export default function ScheduledTaskRunDetailPage() {
     }
   };
 
-  const resultFiles = useMemo(() => result?.files ?? [], [result]);
+  // The generated HTML document is already shown in the dedicated "HTML 预览"
+  // tab, so it is excluded from the "结果文件" list — that list surfaces the
+  // Markdown (and any other non-HTML artifact) only.
+  const resultFiles = useMemo(
+    () =>
+      (result?.files ?? []).filter(
+        (f) => !(f.kind === "html" || (f.name ?? "").toLowerCase().endsWith(".html")),
+      ),
+    [result],
+  );
   const fileCount = resultFiles.length;
   const resultMetadata = useMemo(() => {
     if (!result) return "";
@@ -295,18 +304,28 @@ export default function ScheduledTaskRunDetailPage() {
       }
       setFilesLoading(true);
       try {
-        const loaded = await Promise.all(
+        // Load each file independently. A single failing file (e.g. an archive
+        // that 404s) must NOT blank the whole panel — otherwise the tab shows
+        // "结果文件（2）" while the body says "没有生成文件". Render every file
+        // that loads and skip the ones that don't.
+        const settled = await Promise.allSettled(
           resultFiles.map((f) => {
             const index = result.files.indexOf(f);
             return getScheduledTaskRunFileContent(run.id, index);
           }),
         );
         if (!cancelled) {
+          const loaded = settled
+            .filter(
+              (r): r is PromiseFulfilledResult<ScheduledTaskResultFileContent> =>
+                r.status === "fulfilled",
+            )
+            .map((r) => r.value);
           setFileContents(loaded);
-        }
-      } catch (error) {
-        if (!cancelled) {
-          toast.error(error instanceof Error ? error.message : "加载文件内容失败");
+          const failed = settled.length - loaded.length;
+          if (failed > 0 && loaded.length === 0) {
+            toast.error("结果文件已不可用（可能已被清理）");
+          }
         }
       } finally {
         if (!cancelled) {
@@ -584,7 +603,9 @@ export default function ScheduledTaskRunDetailPage() {
                   )}
                   {!filesLoading && fileContents.length === 0 && (
                     <div className="text-muted-foreground rounded-md border p-3 text-sm">
-                      本次执行没有生成文件。
+                      {fileCount > 0
+                        ? `本次执行生成了 ${fileCount} 个文件，但当前无法读取（文件可能已被清理或移动）。可尝试「下载全部」。`
+                        : "本次执行没有生成文件。"}
                     </div>
                   )}
                   <div className="flex flex-col gap-3">
diff --git a/offline-backend-20260512/backend/packages/harness/deerflow/agents/middlewares/uploads_middleware.py b/offline-backend-20260512/backend/packages/harness/deerflow/agents/middlewares/uploads_middleware.py
index 43c93b69..3358984c 100644
--- a/offline-backend-20260512/backend/packages/harness/deerflow/agents/middlewares/uploads_middleware.py
+++ b/offline-backend-20260512/backend/packages/harness/deerflow/agents/middlewares/uploads_middleware.py
@@ -243,6 +243,17 @@ class UploadsMiddleware(AgentMiddleware[UploadsMiddlewareState]):
         # Get newly uploaded files from the current message's additional_kwargs.files
         new_files = self._files_from_kwargs(last_message, uploads_dir) or []
 
+        # Only inject when the *current* message actually carries new uploads.
+        # Turns without a fresh upload must not re-inject previously uploaded
+        # files: the original upload turn already injected (and persisted) their
+        # <uploaded_files> block, and the files remain physically available for
+        # read_file/grep/view_image. Re-injecting on every later message made the
+        # agent re-reference old images/docs, and — since the frontend parses
+        # files out of the <uploaded_files> content when additional_kwargs.files
+        # is empty — re-rendered the old attachment on each new question.
+        if not new_files:
+            return None
+
         # Collect historical files from the uploads directory (all except the new ones)
         new_filenames = {f["filename"] for f in new_files}
         historical_files: list[dict] = []
@@ -270,9 +281,6 @@ class UploadsMiddleware(AgentMiddleware[UploadsMiddlewareState]):
                 file["outline"] = outline
                 file["outline_preview"] = preview
 
-        if not new_files and not historical_files:
-            return None
-
         logger.debug(f"New files: {[f['filename'] for f in new_files]}, historical: {[f['filename'] for f in historical_files]}")
 
         # Create files message and prepend to the last human message content
diff --git a/offline-backend-20260512/backend/packages/harness/deerflow/runtime/scheduler/service.py b/offline-backend-20260512/backend/packages/harness/deerflow/runtime/scheduler/service.py
index deeb3e63..93adcb1e 100644
--- a/offline-backend-20260512/backend/packages/harness/deerflow/runtime/scheduler/service.py
+++ b/offline-backend-20260512/backend/packages/harness/deerflow/runtime/scheduler/service.py
@@ -1007,11 +1007,11 @@ class ScheduledTaskService:
         if negative_prompt:
             parts.append(f"限制条件（最高优先级，必须严格遵守）：{negative_prompt}")
         gather_prompt = "\n".join(parts)
-        # When the Markdown switch is also on, ask this same gather pass to save a
-        # .md file (the length gate is enforced in code, not surfaced here) so the
-        # task produces both deliverables in one agent run.
-        if also_markdown:
-            gather_prompt += _MARKDOWN_INSTRUCTION
+        # When the Markdown switch is also on, this same gather pass must save a
+        # .md file. We do NOT append _MARKDOWN_INSTRUCTION here — `_start_agent_run`
+        # already appends it exactly once when `require_markdown` is present in the
+        # execution context (kept below). Appending it here too made the prompt
+        # carry the 【输出要求】 block twice when both HTML and Markdown were on.
         gather_task = {**task, "prompt": gather_prompt}
         gather_ctx = dict(task.get("execution_context") or {})
         # Strip the HTML-specific flags so the gather pass is a plain agent run.