增加会话标题重命名功能，优化历史面板交互

src/components/chat/hooks/useAgentChatSession.ts

@@ -146,6 +146,7 @@ export const useAgentChatSession = ({
 
   const [messages, setMessages] = useState<Message[]>([]);
   const [sessionTitle, setSessionTitle] = useState<string | undefined>(undefined);
+  const [isSessionTitleManuallyEdited, setIsSessionTitleManuallyEdited] = useState(false);
   const [sessionId, setSessionId] = useState<string | undefined>(undefined);
   const [branchGroups, setBranchGroups] = useState<BranchGroup[]>([]);
   const [chatSessions, setChatSessions] = useState<ChatSessionSummary[]>([]);
@@ -154,6 +155,7 @@ export const useAgentChatSession = ({
   const [isHydrating, setIsHydrating] = useState(true);
   const abortRef = useRef<AbortController | null>(null);
   const sessionIdRef = useRef<string | undefined>(undefined);
+  const isSessionTitleManuallyEditedRef = useRef(false);
   const cancelPromiseRef = useRef<Promise<void> | null>(null);
   const titleUpdateNonceRef = useRef(0);
 
@@ -161,6 +163,10 @@ export const useAgentChatSession = ({
     sessionIdRef.current = sessionId;
   }, [sessionId]);
 
+  useEffect(() => {
+    isSessionTitleManuallyEditedRef.current = isSessionTitleManuallyEdited;
+  }, [isSessionTitleManuallyEdited]);
+
   useEffect(() => {
     let cancelled = false;
 
@@ -180,6 +186,7 @@ export const useAgentChatSession = ({
 
         setMessages(loadedState.messages);
         setSessionTitle(loadedState.title);
+        setIsSessionTitleManuallyEdited(loadedState.isTitleManuallyEdited ?? false);
         setSessionId(loadedState.sessionId);
         setBranchGroups(loadedState.branchGroups);
         setChatSessions(sessions);
@@ -207,6 +214,7 @@ export const useAgentChatSession = ({
       const state: LoadedChatState = {
         storageSessionId: storageSessionIdRef.current,
         title: sessionTitle,
+        isTitleManuallyEdited: isSessionTitleManuallyEdited,
         messages,
         sessionId,
         branchGroups,
@@ -230,7 +238,7 @@ export const useAgentChatSession = ({
     return () => {
       window.clearTimeout(persistTimer);
     };
-  }, [branchGroups, isHydrating, messages, sessionId, sessionTitle]);
+  }, [branchGroups, isHydrating, isSessionTitleManuallyEdited, messages, sessionId, sessionTitle]);
 
   useEffect(() => {
     setBranchGroups((prev) => {
@@ -354,12 +362,14 @@ export const useAgentChatSession = ({
               });
             } else if (event.type === "session_title") {
               const nextTitle = event.title.trim();
-              if (nextTitle) {
+              if (nextTitle && !isSessionTitleManuallyEditedRef.current) {
                 setSessionTitle(nextTitle);
                 const currentStorageSessionId = storageSessionIdRef.current;
                 if (currentStorageSessionId) {
                   const currentNonce = ++titleUpdateNonceRef.current;
-                  void updateChatSessionTitle(currentStorageSessionId, nextTitle)
+                  void updateChatSessionTitle(currentStorageSessionId, nextTitle, {
+                    isTitleManuallyEdited: false,
+                  })
                     .then(() => listChatSessions())
                     .then((sessions) => {
                       if (titleUpdateNonceRef.current !== currentNonce) return;
@@ -487,6 +497,7 @@ export const useAgentChatSession = ({
     }
     setMessages([]);
     setSessionTitle(undefined);
+    setIsSessionTitleManuallyEdited(false);
     setBranchGroups([]);
     setBranchTransition(null);
     setSessionId(undefined);
@@ -512,6 +523,7 @@ export const useAgentChatSession = ({
     sessionIdRef.current = newState.sessionId;
     setMessages(newState.messages);
     setSessionTitle(newState.title);
+    setIsSessionTitleManuallyEdited(newState.isTitleManuallyEdited ?? false);
     setSessionId(newState.sessionId);
     setBranchGroups(newState.branchGroups);
     setChatSessions(sessions);
@@ -538,6 +550,7 @@ export const useAgentChatSession = ({
         setBranchTransition(null);
         setMessages(nextState.messages);
         setSessionTitle(nextState.title);
+        setIsSessionTitleManuallyEdited(nextState.isTitleManuallyEdited ?? false);
         setSessionId(nextState.sessionId);
         setBranchGroups(nextState.branchGroups);
         setChatSessions(sessions);
@@ -571,6 +584,7 @@ export const useAgentChatSession = ({
           setBranchTransition(null);
           setMessages([]);
           setSessionTitle(undefined);
+          setIsSessionTitleManuallyEdited(false);
           setSessionId(undefined);
           setBranchGroups([]);
           return;
@@ -588,6 +602,7 @@ export const useAgentChatSession = ({
         setBranchTransition(null);
         setMessages(nextState.messages);
         setSessionTitle(nextState.title);
+        setIsSessionTitleManuallyEdited(nextState.isTitleManuallyEdited ?? false);
         setSessionId(nextState.sessionId);
         setBranchGroups(nextState.branchGroups);
         setChatSessions(sessionsAfterDelete);
@@ -607,6 +622,29 @@ export const useAgentChatSession = ({
     [runPrompt],
   );
 
+  const renameSession = useCallback(
+    async (targetStorageSessionId: string, nextTitle: string) => {
+      const normalizedTitle = nextTitle.trim();
+      if (!normalizedTitle || isHydrating) return;
+
+      try {
+        await updateChatSessionTitle(targetStorageSessionId, normalizedTitle, {
+          isTitleManuallyEdited: true,
+        });
+        const sessions = await listChatSessions();
+        setChatSessions(sessions);
+
+        if (storageSessionIdRef.current === targetStorageSessionId) {
+          setSessionTitle(normalizedTitle);
+          setIsSessionTitleManuallyEdited(true);
+        }
+      } catch (error) {
+        console.error("[GlobalChatbox] Failed to rename chat session:", error);
+      }
+    },
+    [isHydrating],
+  );
+
   const regenerate = useCallback(async () => {
     if (isHydrating || isStreaming || messages.length === 0) return;
 
@@ -776,6 +814,7 @@ export const useAgentChatSession = ({
     abort,
     createSession,
     reset,
+    renameSession,
     removeSession,
     switchSession,
   };