Merge upstream/experimental into feat/citations

Resolved conflicts:
- backend/src/gateway/routers/artifacts.py: Keep citations block removal for markdown downloads
- frontend/src/components/workspace/messages/message-list-item.tsx: Keep improved citation handling with rehypePlugins, humanMessagePlugins, and CitationsLoadingIndicator

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/components/workspace/settings/about-settings-page.tsx

@@ -0,0 +1,9 @@
+"use client";
+
+import { Streamdown } from "streamdown";
+
+import about from "./about.md";
+
+export function AboutSettingsPage() {
+  return <Streamdown>{about}</Streamdown>;
+}

frontend/src/components/workspace/settings/about.md

@@ -0,0 +1,52 @@
+# 🦌 [About DeerFlow 2.0](https://github.com/bytedance/deer-flow)
+
+> **From Open Source, Back to Open Source**
+
+**DeerFlow** (**D**eep **E**xploration and **E**fficient **R**esearch **Flow**) is a community-driven SuperAgent harness that researches, codes, and creates.
+With the help of sandboxes, memories, tools and skills, it handles
+different levels of tasks that could take minutes to hours.
+
+---
+
+## 🌟 GitHub Repository
+
+Explore DeerFlow on GitHub: [github.com/bytedance/deer-flow](https://github.com/bytedance/deer-flow)
+
+## 🌐 Official Website
+
+Visit the official website of DeerFlow: [deerflow.tech](https://deerflow.tech/)
+
+## 📧 Support
+
+If you have any questions or need help, please contact us at [support@deerflow.tech](mailto:support@deerflow.tech).
+
+---
+
+## 📜 License
+
+DeerFlow is proudly open source and distributed under the **MIT License**.
+
+---
+
+## 🙌 Acknowledgments
+
+We extend our heartfelt gratitude to the open source projects and contributors who have made DeerFlow a reality. We truly stand on the shoulders of giants.
+
+### Core Frameworks
+- **[LangChain](https://github.com/langchain-ai/langchain)**: A phenomenal framework that powers our LLM interactions and chains.
+- **[LangGraph](https://github.com/langchain-ai/langgraph)**: Enabling sophisticated multi-agent orchestration.
+- **[Next.js](https://nextjs.org/)**: A cutting-edge framework for building web applications.
+
+### UI Libraries
+- **[Shadcn](https://ui.shadcn.com/)**: Minimalistic components that power our UI.
+- **[SToneX](https://github.com/stonexer)**: For his invaluable contribution to token-by-token visual effects.
+
+These outstanding projects form the backbone of DeerFlow and exemplify the transformative power of open source collaboration.
+
+### Special Thanks
+Finally, we want to express our heartfelt gratitude to the core authors of DeerFlow 1.0 and 2.0:
+
+- **[Daniel Walnut](https://github.com/hetaoBackend/)**
+- **[Henry Li](https://github.com/magiccube/)**
+
+Without their vision, passion and dedication, `DeerFlow` would not be what it is today.

frontend/src/components/workspace/settings/acknowledge-page.tsx

@@ -1,5 +0,0 @@
-"use client";
-
-export function AcknowledgePage() {
-  return null;
-}

frontend/src/components/workspace/settings/memory-settings-page.tsx

@@ -38,7 +38,6 @@ function memoryToMarkdown(
   const parts: string[] = [];
 
   parts.push(`## ${t.settings.memory.markdown.overview}`);
-  parts.push(`- **${t.common.version}**: \`${memory.version}\``);
   parts.push(
     `- **${t.common.lastUpdated}**: \`${formatTimeAgo(memory.lastUpdated)}\``,
   );

frontend/src/components/workspace/settings/settings-dialog.tsx

@@ -2,12 +2,13 @@
 
 import {
   BellIcon,
+  InfoIcon,
   BrainIcon,
   PaletteIcon,
   SparklesIcon,
   WrenchIcon,
 } from "lucide-react";
-import { useMemo, useState } from "react";
+import { useEffect, useMemo, useState } from "react";
 
 import {
   Dialog,
@@ -16,7 +17,7 @@ import {
   DialogTitle,
 } from "@/components/ui/dialog";
 import { ScrollArea } from "@/components/ui/scroll-area";
-import { AcknowledgePage } from "@/components/workspace/settings/acknowledge-page";
+import { AboutSettingsPage } from "@/components/workspace/settings/about-settings-page";
 import { AppearanceSettingsPage } from "@/components/workspace/settings/appearance-settings-page";
 import { MemorySettingsPage } from "@/components/workspace/settings/memory-settings-page";
 import { NotificationSettingsPage } from "@/components/workspace/settings/notification-settings-page";
@@ -31,7 +32,7 @@ type SettingsSection =
   | "tools"
   | "skills"
   | "notification"
-  | "acknowledge";
+  | "about";
 
 type SettingsDialogProps = React.ComponentProps<typeof Dialog> & {
   defaultSection?: SettingsSection;
@@ -43,6 +44,14 @@ export function SettingsDialog(props: SettingsDialogProps) {
   const [activeSection, setActiveSection] =
     useState<SettingsSection>(defaultSection);
 
+  useEffect(() => {
+    // When opening the dialog, ensure the active section follows the caller's intent.
+    // This allows triggers like "About" to open the dialog directly on that page.
+    if (dialogProps.open) {
+      setActiveSection(defaultSection);
+    }
+  }, [defaultSection, dialogProps.open]);
+
   const sections = useMemo(
     () => [
       {
@@ -62,6 +71,7 @@ export function SettingsDialog(props: SettingsDialogProps) {
       },
       { id: "tools", label: t.settings.sections.tools, icon: WrenchIcon },
       { id: "skills", label: t.settings.sections.skills, icon: SparklesIcon },
+      { id: "about", label: t.settings.sections.about, icon: InfoIcon },
     ],
     [
       t.settings.sections.appearance,
@@ -69,6 +79,7 @@ export function SettingsDialog(props: SettingsDialogProps) {
       t.settings.sections.tools,
       t.settings.sections.skills,
       t.settings.sections.notification,
+      t.settings.sections.about,
     ],
   );
   return (
@@ -122,7 +133,7 @@ export function SettingsDialog(props: SettingsDialogProps) {
                 />
               )}
               {activeSection === "notification" && <NotificationSettingsPage />}
-              {activeSection === "acknowledge" && <AcknowledgePage />}
+              {activeSection === "about" && <AboutSettingsPage />}
             </div>
           </ScrollArea>
         </div>