Move the use-case index onto Learn so the pilot stories stay reachable, and make share images resolve on the host that serves the page.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/pages/use-cases.test.jsx

@@ -1,35 +1,19 @@
 import { describe, test, expect, vi } from "vitest";
-import { screen } from "@testing-library/react";
-import { renderWithProviders as render } from "../utils/test-utils";
 import UseCasesPage from "../../app/(marketing)/use-cases/page";
-import messages from "../../messages/en/index";
 
-vi.mock("next/dynamic", () => ({
-  default: () => {
-    const Component = vi.fn(() => (
-      <section data-testid="related-articles">Related articles</section>
-    ));
-    return Component;
-  },
+const { redirect } = vi.hoisted(() => ({
+  redirect: vi.fn((url) => {
+    throw new Error(`NEXT_REDIRECT:${url}`);
+  }),
 }));
 
-vi.mock("next/link", () => ({
-  default: ({ children, href, ...props }) => (
-    <a href={href} {...props}>
-      {children}
-    </a>
-  ),
+vi.mock("next/navigation", () => ({
+  redirect,
 }));
 
 describe("UseCasesPage", () => {
-  const links = messages.pages.useCases.caseStudyTiles.links;
-
-  test("renders case study tiles as links to detail pages", () => {
-    render(<UseCasesPage />);
-
-    for (const link of links) {
-      const anchor = screen.getByRole("link", { name: link.ariaLabel });
-      expect(anchor).toHaveAttribute("href", link.href);
-    }
+  test("sends the use cases index to Learn", () => {
+    expect(() => UseCasesPage()).toThrow("NEXT_REDIRECT:/learn");
+    expect(redirect).toHaveBeenCalledWith("/learn");
   });
 });