feat(frontend): 对共享文件应用自动三方合并

frontend/src/components/ai-elements/prompt-input.tsx

@@ -1197,6 +1197,8 @@ export const PromptInputSpeechButton = ({
     null,
   );
   const recognitionRef = useRef<SpeechRecognition | null>(null);
+  const callbacksRef = useRef({ textareaRef, onTranscriptionChange });
+  callbacksRef.current = { textareaRef, onTranscriptionChange };
 
   useEffect(() => {
     if (
@@ -1229,15 +1231,18 @@ export const PromptInputSpeechButton = ({
           }
         }
 
-        if (finalTranscript && textareaRef?.current) {
+        const currentTextareaRef = callbacksRef.current.textareaRef;
-          const textarea = textareaRef.current;
+        const currentOnTranscriptionChange = callbacksRef.current.onTranscriptionChange;
+
+        if (finalTranscript && currentTextareaRef?.current) {
+          const textarea = currentTextareaRef.current;
           const currentValue = textarea.value;
           const newValue =
             currentValue + (currentValue ? " " : "") + finalTranscript;
 
           textarea.value = newValue;
           textarea.dispatchEvent(new Event("input", { bubbles: true }));
-          onTranscriptionChange?.(newValue);
+          currentOnTranscriptionChange?.(newValue);
         }
       };
 
@@ -1255,7 +1260,7 @@ export const PromptInputSpeechButton = ({
         recognitionRef.current.stop();
       }
     };
-  }, [textareaRef, onTranscriptionChange]);
+  }, []);
 
   const toggleListening = useCallback(() => {
     if (!recognition) {

frontend/src/components/ai-elements/suggestion.tsx

@@ -3,7 +3,6 @@
 import { Button } from "@/components/ui/button";
 import { ScrollArea, ScrollBar } from "@/components/ui/scroll-area";
 import { cn } from "@/lib/utils";
-import { Icon } from "@radix-ui/react-select";
 import type { LucideIcon } from "lucide-react";
 import { Children, type ComponentProps } from "react";
 

frontend/src/components/workspace/artifacts/context.tsx

@@ -1,4 +1,10 @@
-import { createContext, useContext, useState, type ReactNode } from "react";
+import {
+  createContext,
+  useCallback,
+  useContext,
+  useState,
+  type ReactNode,
+} from "react";
 
 import { useSidebar } from "@/components/ui/sidebar";
 import { env } from "@/env";
@@ -39,20 +45,24 @@ export function ArtifactsProvider({ children }: ArtifactsProviderProps) {
   const [fullscreen, setFullscreen] = useState(false);
   const { setOpen: setSidebarOpen } = useSidebar();
 
-  const select = (artifact: string, autoSelect = false) => {
+  const select = useCallback(
-    setSelectedArtifact(artifact);
+    (artifact: string, autoSelect = false) => {
-    if (env.NEXT_PUBLIC_STATIC_WEBSITE_ONLY !== "true") {
+      setSelectedArtifact(artifact);
-      setSidebarOpen(false);
+      if (env.NEXT_PUBLIC_STATIC_WEBSITE_ONLY !== "true") {
-    }
+        setSidebarOpen(false);
-    if (!autoSelect) {
+      }
-      setAutoSelect(false);
+      if (!autoSelect) {
-    }
+        setAutoSelect(false);
-  };
+      }
+    },
+    [setSidebarOpen, setSelectedArtifact, setAutoSelect],
+  );
 
-  const deselect = () => {
+  const deselect = useCallback(() => {
     setSelectedArtifact(null);
     setAutoSelect(true);
-  };
+    setOpen(false);
+  }, []);
 
   const value: ArtifactsContextType = {
     artifacts,

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

@@ -1,6 +1,14 @@
 "use client";
 
-import { MoreHorizontal, Pencil, Share2, Trash2 } from "lucide-react";
+import {
+  Download,
+  FileJson,
+  FileText,
+  MoreHorizontal,
+  Pencil,
+  Share2,
+  Trash2,
+} from "lucide-react";
 import Link from "next/link";
 import { useParams, usePathname, useRouter } from "next/navigation";
 import { useCallback, useState } from "react";
@@ -19,6 +27,9 @@ import {
   DropdownMenuContent,
   DropdownMenuItem,
   DropdownMenuSeparator,
+  DropdownMenuSub,
+  DropdownMenuSubContent,
+  DropdownMenuSubTrigger,
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
 import { Input } from "@/components/ui/input";
@@ -31,12 +42,18 @@ import {
   SidebarMenuButton,
   SidebarMenuItem,
 } from "@/components/ui/sidebar";
+import { getAPIClient } from "@/core/api";
 import { useI18n } from "@/core/i18n/hooks";
+import {
+  exportThreadAsJSON,
+  exportThreadAsMarkdown,
+} from "@/core/threads/export";
 import {
   useDeleteThread,
   useRenameThread,
   useThreads,
 } from "@/core/threads/hooks";
+import type { AgentThread, AgentThreadState } from "@/core/threads/types";
 import { pathOfThread, titleOfThread } from "@/core/threads/utils";
 import { env } from "@/env";
 import { copyToClipboard } from "@/lib/utils";
@@ -111,6 +128,32 @@ export function RecentChatList() {
     },
     [t],
   );
+
+  const handleExport = useCallback(
+    async (thread: AgentThread, format: "markdown" | "json") => {
+      try {
+        const apiClient = getAPIClient();
+        const state = await apiClient.threads.getState<AgentThreadState>(
+          thread.thread_id,
+        );
+        const messages = state.values?.messages ?? [];
+        if (messages.length === 0) {
+          toast.error(t.conversation.noMessages);
+          return;
+        }
+        if (format === "markdown") {
+          exportThreadAsMarkdown(thread, messages);
+        } else {
+          exportThreadAsJSON(thread, messages);
+        }
+        toast.success(t.common.exportSuccess);
+      } catch {
+        toast.error("Failed to export conversation");
+      }
+    },
+    [t],
+  );
+
   if (threads.length === 0) {
     return null;
   }
@@ -173,6 +216,30 @@ export function RecentChatList() {
                                 <Share2 className="text-muted-foreground" />
                                 <span>{t.common.share}</span>
                               </DropdownMenuItem>
+                              <DropdownMenuSub>
+                                <DropdownMenuSubTrigger>
+                                  <Download className="text-muted-foreground" />
+                                  <span>{t.common.export}</span>
+                                </DropdownMenuSubTrigger>
+                                <DropdownMenuSubContent>
+                                  <DropdownMenuItem
+                                    onSelect={() =>
+                                      handleExport(thread, "markdown")
+                                    }
+                                  >
+                                    <FileText className="text-muted-foreground" />
+                                    <span>{t.common.exportAsMarkdown}</span>
+                                  </DropdownMenuItem>
+                                  <DropdownMenuItem
+                                    onSelect={() =>
+                                      handleExport(thread, "json")
+                                    }
+                                  >
+                                    <FileJson className="text-muted-foreground" />
+                                    <span>{t.common.exportAsJSON}</span>
+                                  </DropdownMenuItem>
+                                </DropdownMenuSubContent>
+                              </DropdownMenuSub>
                               <DropdownMenuSeparator />
                               <DropdownMenuItem
                                 onSelect={() => handleDelete(thread.thread_id)}

frontend/src/core/settings/hooks.ts

@@ -1,5 +1,4 @@
-import { useCallback, useState } from "react";
+import { useCallback, useLayoutEffect, useState } from "react";
-import { useEffect } from "react";
 
 import {
   DEFAULT_LOCAL_SETTINGS,
@@ -17,7 +16,7 @@ export function useLocalSettings(): [
 ] {
   const [mounted, setMounted] = useState(false);
   const [state, setState] = useState<LocalSettings>(DEFAULT_LOCAL_SETTINGS);
-  useEffect(() => {
+  useLayoutEffect(() => {
     if (!mounted) {
       setState(getLocalSettings());
     }
@@ -28,6 +27,7 @@ export function useLocalSettings(): [
       key: keyof LocalSettings,
       value: Partial<LocalSettings[keyof LocalSettings]>,
     ) => {
+      if (!mounted) return;
       setState((prev) => {
         const newState = {
           ...prev,
@@ -41,7 +41,7 @@ export function useLocalSettings(): [
         return newState;
       });
     },
-    [],
+    [mounted],
   );
   return [state, setter];
 }