fix(auth): align session lifecycle with Keycloak

src/lib/sessionRecoveryDraft.test.tsx

@@ -0,0 +1,41 @@
+import { act, render } from "@testing-library/react";
+import { useState } from "react";
+
+import { useSessionRecoveryDraft } from "./sessionRecoveryDraft";
+import { useAuthStore } from "@/store/authStore";
+
+const DraftFixture = ({ initial }: { initial: string }) => {
+  const [value, setValue] = useState(initial);
+  useSessionRecoveryDraft("fixture", { value }, (draft) => setValue(draft.value));
+  return <output>{value}</output>;
+};
+
+describe("useSessionRecoveryDraft", () => {
+  beforeEach(() => {
+    sessionStorage.clear();
+    useAuthStore.setState({
+      accessToken: null,
+      sessionExpired: false,
+      sessionExpiryReason: null,
+    });
+  });
+
+  it("saves an in-progress value when authentication expires and restores it once", () => {
+    const first = render(<DraftFixture initial="in-progress" />);
+
+    act(() => {
+      useAuthStore.getState().markSessionExpired("unauthorized");
+    });
+
+    expect(sessionStorage.getItem("tjwater-session-recovery:fixture")).toBe(
+      JSON.stringify({ value: "in-progress" }),
+    );
+    first.unmount();
+
+    useAuthStore.getState().clearSessionExpired();
+    const restored = render(<DraftFixture initial="empty" />);
+
+    expect(restored.getByText("in-progress")).toBeInTheDocument();
+    expect(sessionStorage.getItem("tjwater-session-recovery:fixture")).toBeNull();
+  });
+});