修复会话记录可能存储两次的bug；更改会话行为，默认进入新对话

src/components/chat/chatStorage.ts

@@ -9,8 +9,6 @@ import type {
 } from "./GlobalChatbox.types";
 import { cloneBranchGroups, cloneMessages } from "./GlobalChatbox.utils";
 
-const ACTIVE_SESSION_STORAGE_KEY = "tjwater_agent_active_session_id_v2";
-
 type RemoteSessionPayload = {
   id?: string;
   title?: string;
@@ -60,34 +58,6 @@ const toMillis = (value: string | number | undefined) =>
 
 const normalizeTitle = (value?: string) => value?.trim() || "新对话";
 
-const getActiveSessionStorageKey = (projectId?: string | null) => {
-  const normalizedProjectId = projectId?.trim();
-  return normalizedProjectId
-    ? `${ACTIVE_SESSION_STORAGE_KEY}:${encodeURIComponent(normalizedProjectId)}`
-    : ACTIVE_SESSION_STORAGE_KEY;
-};
-
-const getStoredActiveSessionId = (projectId?: string | null) => {
-  if (typeof window === "undefined") return undefined;
-  const stored = window.localStorage
-    .getItem(getActiveSessionStorageKey(projectId))
-    ?.trim();
-  return stored || undefined;
-};
-
-const setStoredActiveSessionId = (
-  sessionId?: string,
-  projectId?: string | null,
-) => {
-  if (typeof window === "undefined") return;
-  const storageKey = getActiveSessionStorageKey(projectId);
-  if (sessionId) {
-    window.localStorage.setItem(storageKey, sessionId);
-    return;
-  }
-  window.localStorage.removeItem(storageKey);
-};
-
 const fetchRemoteChatSessions = async (): Promise<ChatSessionSummary[]> => {
   const response = await apiFetch(`${config.AGENT_URL}/api/v1/agent/chat/sessions`, {
     method: "GET",
@@ -247,36 +217,18 @@ const deleteRemoteChatSession = async (sessionId: string) => {
 };
 
 export const loadActiveChatState = async (
-  projectId?: string | null,
+  _projectId?: string | null,
 ): Promise<LoadedChatState> => {
-  if (typeof window === "undefined") return emptyLoadedChatState();
-
-  const activeSessionId = getStoredActiveSessionId(projectId);
-  if (activeSessionId) {
-    const activeSession = await fetchRemoteChatSession(activeSessionId);
-    if (activeSession.storageSessionId) {
-      return activeSession;
-    }
-    setStoredActiveSessionId(undefined, projectId);
-  }
-
-  const sessions = await fetchRemoteChatSessions();
-  const latestSession = sessions[0];
-  if (!latestSession) {
-    return emptyLoadedChatState();
-  }
-  setStoredActiveSessionId(latestSession.id, projectId);
-  return await fetchRemoteChatSession(latestSession.id);
+  return emptyLoadedChatState();
 };
 
 export const saveActiveChatState = async (
   state: LoadedChatState,
-  projectId?: string | null,
+  _projectId?: string | null,
 ): Promise<string | undefined> => {
   if (typeof window === "undefined") return state.storageSessionId;
 
   if (!hasChatContent(state)) {
-    setStoredActiveSessionId(undefined, projectId);
     return undefined;
   }
 
@@ -290,7 +242,6 @@ export const saveActiveChatState = async (
     storageSessionId: remoteSessionId,
     sessionId: remoteSessionId,
   });
-  setStoredActiveSessionId(savedSessionId, projectId);
   return savedSessionId;
 };
 
@@ -317,39 +268,22 @@ export const updateChatSessionTitle = async (
   );
 };
 
-export const createEmptyChatSession = async (
-  projectId?: string | null,
-): Promise<LoadedChatState> => {
-  if (typeof window === "undefined") return emptyLoadedChatState();
-
-  setStoredActiveSessionId(undefined, projectId);
-  return {
-    ...emptyLoadedChatState(),
-    title: "新对话",
-  };
-};
-
 export const loadChatSessionById = async (
   sessionId: string,
-  projectId?: string | null,
+  _projectId?: string | null,
 ): Promise<LoadedChatState> => {
   if (typeof window === "undefined") return emptyLoadedChatState();
 
-  const loaded = await fetchRemoteChatSession(sessionId);
-  if (loaded.storageSessionId) {
-    setStoredActiveSessionId(sessionId, projectId);
-  }
-  return loaded;
+  return await fetchRemoteChatSession(sessionId);
 };
 
 export const deleteChatSession = async (
   sessionId: string,
-  projectId?: string | null,
+  _projectId?: string | null,
 ): Promise<string | undefined> => {
   if (typeof window === "undefined") return undefined;
 
   await deleteRemoteChatSession(sessionId);
   const nextActiveSession = (await listChatSessions())[0];
-  setStoredActiveSessionId(nextActiveSession?.id, projectId);
   return nextActiveSession?.id;
 };