test: cover enrich/done and documents/bulk-edit page branches

enrich/done: heading, body, both CTA links.

documents/bulk-edit: empty-store onMount redirect to /documents,
loading spinner during in-flight fetch, error banner on backend error
code, error banner on fetch rejection. Mocks fetch via vi.spyOn so the
async branches are exercised without a real backend.

Refs #496.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/routes/enrich/done/page.svelte.test.ts

@@ -0,0 +1,36 @@
+import { describe, it, expect, afterEach } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+import EnrichDonePage from './+page.svelte';
+
+afterEach(cleanup);
+
+describe('enrich/done page', () => {
+	it('renders the success heading', async () => {
+		render(EnrichDonePage, { props: {} });
+
+		await expect.element(page.getByRole('heading', { name: /alles erledigt/i })).toBeVisible();
+	});
+
+	it('renders the body message', async () => {
+		render(EnrichDonePage, { props: {} });
+
+		await expect.element(page.getByText('Alle Dokumente wurden bearbeitet.')).toBeVisible();
+	});
+
+	it('links the primary CTA to the home page', async () => {
+		render(EnrichDonePage, { props: {} });
+
+		await expect
+			.element(page.getByRole('link', { name: /zurück zur übersicht/i }))
+			.toHaveAttribute('href', '/');
+	});
+
+	it('links the secondary CTA back to /enrich', async () => {
+		render(EnrichDonePage, { props: {} });
+
+		await expect
+			.element(page.getByRole('link', { name: /zurück zur liste/i }))
+			.toHaveAttribute('href', '/enrich');
+	});
+});