Merge branch 'master' of http://192.168.0.200/knowledge-base-bj/deerflow-code into master-nj

# Conflicts:
#	frontend-web/src/components/workspace/messages/message-group.tsx
#	offline-backend-20260512/backend/packages/harness/deerflow/agents/lead_agent/prompt.py

frontend-web/src/pages/AgentChatPage.tsx

@@ -777,7 +777,13 @@ export default function AgentChatPage({
       : "ready";
 
   return (
-    <ThreadContext.Provider value={{ thread: displayThread }}>
+    <ThreadContext.Provider
+      value={{
+        thread: displayThread,
+        knowledgeReferencesEnabled:
+          knowledgeSelectionReady && selectedKnowledgeBaseIds.length > 0,
+      }}
+    >
       {/* Root: fixed-height horizontal split. ChatBox (chat + artifact
           preview) lives in the left flex cell; the agent detail panel is a
           separate flex sibling OUTSIDE ChatBox, so the artifact preview

frontend-web/src/pages/ChatPage.tsx

@@ -684,7 +684,14 @@ export default function ChatPage() {
     !isWujieEnv();
 
   return (
-    <ThreadContext.Provider value={{ thread: displayThread, isMock }}>
+    <ThreadContext.Provider
+      value={{
+        thread: displayThread,
+        isMock,
+        knowledgeReferencesEnabled:
+          knowledgeSelectionReady && selectedKnowledgeBaseIds.length > 0,
+      }}
+    >
       <ChatBox threadId={threadId}>
         <div
           className={cn(

frontend-web/src/pages/IframeChatPage.tsx

@@ -39,8 +39,14 @@ import {
   useLocalSettings,
   useThreadSettings,
 } from "@/core/settings";
-import { usePluginManagementSettings } from "@/core/system-settings/hooks";
-import { stopActiveThreadBeforeClarificationReply, useThreadStream } from "@/core/threads/hooks";
+import {
+  useCitationDisplaySettings,
+  usePluginManagementSettings,
+} from "@/core/system-settings/hooks";
+import {
+  stopActiveThreadBeforeClarificationReply,
+  useThreadStream,
+} from "@/core/threads/hooks";
 import { textOfMessage } from "@/core/threads/utils";
 import { resolveWritingModeReportPath } from "@/core/threads/writing-mode";
 import { env } from "@/env";
@@ -379,6 +385,9 @@ export default function IframeChatPage() {
   }, [forceDefaultAssistant, pendingIframeSubmit, selectedAgentId]);
 
   const ragModeLocked = isThreadRagModeLocked(threadId);
+  const { data: citationDisplay } = useCitationDisplaySettings();
+  const referenceModeEntryEnabled =
+    citationDisplay?.reference_mode_enabled ?? false;
   const ragModeEnabled =
     localSettings.display.ragModeEnabled || ragModeLocked;
   const contextCompressionEnabled =
@@ -525,6 +534,7 @@ export default function IframeChatPage() {
     memoryInjectionEnabled: Boolean(
       settings.context.memory_injection_enabled ?? true,
     ),
+    referenceModeEntryEnabled,
     ragModeEnabled,
     ragModeLocked,
     contextCompressionEnabled,

frontend-web/src/pages/PromptPrefixSettingsPage.tsx

@@ -46,6 +46,8 @@ export default function PromptPrefixSettingsPage({
   const [enabled, setEnabled] = useState(false);
   const [switchLabel, setSwitchLabel] = useState("");
   const [promptPrefix, setPromptPrefix] = useState("");
+  const [ordinaryQaMarkdownFormatEnabled, setOrdinaryQaMarkdownFormatEnabled] =
+    useState(false);
   // Only seed the draft from server data once. Re-syncing every time react-query
   // refetches (window focus, route remount, etc.) would silently overwrite the
   // user's in-progress edits — and made the toggle look unresponsive: a click
@@ -57,6 +59,9 @@ export default function PromptPrefixSettingsPage({
     setEnabled(data.enabled);
     setSwitchLabel(data.switch_label);
     setPromptPrefix(data.prompt_prefix);
+    setOrdinaryQaMarkdownFormatEnabled(
+      data.ordinary_qa_markdown_format_enabled === true,
+    );
     initializedRef.current = true;
   }, [data]);
 
@@ -79,6 +84,8 @@ export default function PromptPrefixSettingsPage({
         enabled,
         switch_label: switchLabel,
         prompt_prefix: promptPrefix,
+        ordinary_qa_markdown_format_enabled:
+          ordinaryQaMarkdownFormatEnabled,
       });
       toast.success("已保存",darkToastOpts.success);
     } catch (e) {
@@ -95,10 +102,9 @@ export default function PromptPrefixSettingsPage({
       }
     >
       <div>
-        <h1 className={embedded ? "text-base font-semibold" : "text-xl font-semibold"}>问答前缀配置</h1>
+        <h1 className={embedded ? "text-base font-semibold" : "text-xl font-semibold"}>问答提示词配置</h1>
         <p className="text-muted-foreground mt-1 text-sm">
-          管理员可在此配置问答页输入框中的「前缀开关」。开启后，用户在新会话中第一次提问时，
-          会将下方配置的前缀文本和原问题拼接后再发送给模型。
+          管理员可在此配置问答前缀和普通问答的固定 Markdown 格式提示词。
         </p>
       </div>
 
@@ -147,6 +153,21 @@ export default function PromptPrefixSettingsPage({
             />
           </div>
 
+          <div className="flex items-start justify-between gap-4 rounded-lg border p-4">
+            <div>
+              <div className="text-sm font-medium">固定格式提示词</div>
+              <p className="text-muted-foreground mt-1 max-w-md text-xs leading-relaxed">
+                开启后，普通问答的长篇内容会按“# 主标题、## 一、标题、###
+                (一) 标题、#### 1. 标题”的固定 Markdown 格式生成。默认关闭。
+              </p>
+            </div>
+            <Switch
+              checked={ordinaryQaMarkdownFormatEnabled}
+              onCheckedChange={setOrdinaryQaMarkdownFormatEnabled}
+              aria-label="固定格式提示词"
+            />
+          </div>
+
           <div className="flex justify-end">
             <Button onClick={handleSave} disabled={update.isPending}>
               {update.isPending && (

frontend-web/src/pages/iframe-chat-mode-buttons.test.ts

@@ -9,6 +9,7 @@ test("includes the context compression toggle in the iframe chat toolbar", () =>
     agentSelected: false,
     writingModeEnabled: false,
     memoryInjectionEnabled: true,
+    referenceModeEntryEnabled: true,
     ragModeEnabled: false,
     ragModeLocked: false,
     contextCompressionEnabled: false,
@@ -28,11 +29,27 @@ test("includes the context compression toggle in the iframe chat toolbar", () =>
   );
 });
 
+test("hides the references toggle when reference mode is disabled globally", () => {
+  const buttons = buildIframeModeButtons({
+    agentSelected: false,
+    writingModeEnabled: false,
+    memoryInjectionEnabled: true,
+    referenceModeEntryEnabled: false,
+    ragModeEnabled: true,
+    ragModeLocked: false,
+    contextCompressionEnabled: false,
+    proModeEnabled: false,
+  });
+
+  assert.equal(buttons.some((button) => button.key === "references"), false);
+});
+
 test("returns only concrete toolbar button configs", () => {
   const buttons = buildIframeModeButtons({
     agentSelected: true,
     writingModeEnabled: false,
     memoryInjectionEnabled: true,
+    referenceModeEntryEnabled: true,
     ragModeEnabled: false,
     ragModeLocked: false,
     contextCompressionEnabled: false,

frontend-web/src/pages/iframe-chat-mode-buttons.ts

@@ -15,6 +15,7 @@ type BuildIframeModeButtonsInput = {
   agentSelected: boolean;
   writingModeEnabled: boolean;
   memoryInjectionEnabled: boolean;
+  referenceModeEntryEnabled: boolean;
   ragModeEnabled: boolean;
   ragModeLocked: boolean;
   contextCompressionEnabled: boolean;
@@ -25,12 +26,13 @@ export function buildIframeModeButtons({
   agentSelected,
   writingModeEnabled,
   memoryInjectionEnabled,
+  referenceModeEntryEnabled,
   ragModeEnabled,
   ragModeLocked,
   contextCompressionEnabled,
   proModeEnabled,
 }: BuildIframeModeButtonsInput): IframeModeButtonState[] {
-  return [
+  const buttons: IframeModeButtonState[] = [
     {
       key: "writing",
       label: "写作",
@@ -63,4 +65,7 @@ export function buildIframeModeButtons({
       active: agentSelected,
     },
   ];
+  return referenceModeEntryEnabled
+    ? buttons
+    : buttons.filter((button) => button.key !== "references");
 }