Refine chat session storage and title handling

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/components/chat/hooks/useAgentChatSession.test.tsx

@@ -3,6 +3,7 @@
 import { act, renderHook, waitFor } from "@testing-library/react";
 
 import { useAgentChatSession } from "./useAgentChatSession";
+import { streamAgentChat } from "@/lib/chatStream";
 
 jest.mock("@/lib/chatStream", () => ({
   abortAgentChat: jest.fn(async () => undefined),
@@ -12,6 +13,7 @@ jest.mock("@/lib/chatStream", () => ({
 
 const loadActiveChatState = jest.fn();
 const listChatSessions = jest.fn();
+const updateChatSessionTitle = jest.fn();
 
 jest.mock("../chatStorage", () => ({
   deleteChatSession: jest.fn(async () => undefined),
@@ -26,13 +28,15 @@ jest.mock("../chatStorage", () => ({
     branchGroups: [],
   })),
   saveActiveChatState: jest.fn(async (state) => state.storageSessionId),
-  updateChatSessionTitle: jest.fn(async () => undefined),
+  updateChatSessionTitle: (...args: unknown[]) => updateChatSessionTitle(...args),
 }));
 
 describe("useAgentChatSession", () => {
   beforeEach(() => {
     loadActiveChatState.mockReset();
     listChatSessions.mockReset();
+    updateChatSessionTitle.mockReset();
+    jest.mocked(streamAgentChat).mockReset();
 
     loadActiveChatState.mockResolvedValue({
       storageSessionId: undefined,
@@ -98,4 +102,46 @@ describe("useAgentChatSession", () => {
       },
     ]);
   });
+
+  it("ignores generated session titles after the title was edited manually", async () => {
+    listChatSessions.mockResolvedValue([]);
+    loadActiveChatState.mockResolvedValue({
+      storageSessionId: "session-1",
+      title: "手动标题",
+      isTitleManuallyEdited: true,
+      messages: [],
+      sessionId: "session-1",
+      branchGroups: [],
+    });
+    jest.mocked(streamAgentChat).mockImplementationOnce(async ({ onEvent }) => {
+      onEvent({
+        type: "session_title",
+        sessionId: "session-1",
+        title: "自动标题",
+      });
+      onEvent({
+        type: "done",
+        sessionId: "session-1",
+      });
+    });
+
+    const { result } = renderHook(() =>
+      useAgentChatSession({
+        onToolCall: jest.fn(),
+      }),
+    );
+
+    await waitFor(() => expect(result.current.isHydrating).toBe(false));
+
+    await act(async () => {
+      await result.current.sendPrompt("帮我分析一下");
+    });
+
+    expect(result.current.sessionTitle).toBe("手动标题");
+    expect(updateChatSessionTitle).not.toHaveBeenCalledWith(
+      "session-1",
+      "自动标题",
+      expect.anything(),
+    );
+  });
 });