RuleTemplate seed and create flow

tests/mocks/navigation.ts

@@ -0,0 +1,20 @@
+import { vi } from "vitest";
+
+/**
+ * Shared Next.js navigation mock for tests that render components using useRouter
+ * (e.g. home RuleStack) without a file-local vi.mock.
+ */
+export const testRouter = {
+  push: vi.fn(),
+  replace: vi.fn(),
+  back: vi.fn(),
+  prefetch: vi.fn(),
+};
+
+export const testPathname = vi.fn(() => "/");
+
+vi.mock("next/navigation", () => ({
+  useRouter: () => testRouter,
+  usePathname: () => testPathname(),
+  useSearchParams: vi.fn(() => new URLSearchParams()),
+}));