Update task documentation and test fixes

- Update Tasks.md with current progress and status
- Fix useListData hook tests

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

frontend/src/hooks/__tests__/useListData.test.ts

@@ -76,4 +76,37 @@ describe("useListData", () => {
     expect(fetcher).toHaveBeenCalledTimes(2);
     expect(result.current.items).toEqual(["second"]);
   });
+
+  it("does not update state when signal is aborted before resolution", async () => {
+    const abortedSignals: AbortSignal[] = [];
+    const fetcher = vi.fn().mockImplementation(async (signal: AbortSignal) => {
+      abortedSignals.push(signal);
+      // Simulate a delay
+      await new Promise((resolve) => setTimeout(resolve, 50));
+      return { items: ["late"] };
+    });
+    const selector = vi.fn((response: { items: string[] }) => response.items);
+
+    const { result, unmount } = renderHook(() =>
+      useListData({
+        fetcher,
+        selector,
+        errorMessage: "Failed to load",
+      })
+    );
+
+    // Unmount immediately to trigger abort
+    await act(async () => {
+      await Promise.resolve();
+    });
+    unmount();
+
+    // Verify at least one signal was collected and it was aborted
+    expect(abortedSignals.length).toBeGreaterThan(0);
+    const lastSignal = abortedSignals[abortedSignals.length - 1];
+    expect(lastSignal != null && lastSignal.aborted).toBe(true);
+
+    // Items should not be updated after abort
+    expect(result.current.items).toEqual([]);
+  });
 });