fix

src/components/SearchHistoryDialog.tsx

@@ -101,6 +101,19 @@ export function SearchHistoryDialog() {
       setHistoryTasks((list) =>
         list.filter((item) => String(item.id) !== String(historyId))
       );
+
+      // If no remaining tasks share the same project, clean up project store
+      if (history?.project_id) {
+        const hasRemaining = historyTasks.some(
+          (item) =>
+            String(item.id) !== String(historyId) &&
+            item.project_id === history.project_id
+        );
+        if (!hasRemaining) {
+          projectStore.removeProject(history.project_id);
+        }
+      }
+
       callback?.();
     } catch (error) {
       console.error('Failed to delete history task:', error);

src/service/stackAuthApi.ts

@@ -52,10 +52,6 @@ export async function loginByStackToken(params: {
   });
 }
 
-/**
- * Attempts a passwordless SSO login first, and auto-creates the user if not found.
- * This matches the UX request: “check existing profile; if missing, create like signup”.
- */
 export function getLoginErrorMessage(
   data: any,
   fallbackCheckEmail: string,
@@ -89,6 +85,10 @@ export function getLoginErrorMessage(
   return data.text || fallbackGeneric;
 }
 
+/**
+ * Attempts a passwordless SSO login first, and auto-creates the user if not found.
+ * This matches the UX request: "check existing profile; if missing, create like signup".
+ */
 export async function loginByStackWithAutoCreate(
   token: string
 ): Promise<StackLoginResponse> {

test/unit/components/SearchHistoryDialog.test.tsx

@@ -24,6 +24,7 @@ vi.mock('react-router-dom', () => ({
   useNavigate: () => vi.fn(),
 }));
 
+const removeProjectMock = vi.fn();
 vi.mock('@/hooks/useChatStoreAdapter', () => ({
   default: () => ({
     chatStore: { activeTaskId: undefined },
@@ -31,6 +32,7 @@ vi.mock('@/hooks/useChatStoreAdapter', () => ({
       getProjectById: vi.fn(() => null),
       setHistoryId: vi.fn(),
       setActiveProject: vi.fn(),
+      removeProject: removeProjectMock,
     },
   }),
 }));
@@ -112,6 +114,7 @@ describe('SearchHistoryDialog', () => {
     (window as any).ipcRenderer = {
       invoke: vi.fn().mockResolvedValue(undefined),
     };
+    vi.spyOn(window, 'confirm').mockReturnValue(true);
   });
 
   it('deletes a history item from list view', async () => {
@@ -141,6 +144,9 @@ describe('SearchHistoryDialog', () => {
       'project-1'
     );
 
+    // Project store should be cleaned up since this was the last task in the project
+    expect(removeProjectMock).toHaveBeenCalledWith('project-1');
+
     await waitFor(() => {
       expect(screen.queryByText('My history item')).not.toBeInTheDocument();
     });