test(transcription): cover TranscriptionColumn branches

Empty placeholder, heading + per-doc rendering, weekly-pulse visibility
gated on weeklyCount > 0, block-progress label vs em-dash branch,
task=transcribe link, missing-documentDate handling.

8 tests, ~20 branches.

Refs #496.

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

frontend/src/lib/document/transcription/TranscriptionColumn.svelte.test.ts

@@ -0,0 +1,77 @@
+import { describe, it, expect, afterEach } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+import TranscriptionColumn from './TranscriptionColumn.svelte';
+
+afterEach(cleanup);
+
+const makeDoc = (overrides: Record<string, unknown> = {}) => ({
+	id: 'd1',
+	title: 'Brief 1923',
+	documentDate: '1923-04-15',
+	textedBlockCount: 0,
+	annotationCount: 10,
+	contributors: [],
+	hasMoreContributors: false,
+	...overrides
+});
+
+describe('TranscriptionColumn', () => {
+	it('renders the empty placeholder when docs is empty', async () => {
+		render(TranscriptionColumn, { props: { docs: [], weeklyCount: 0 } });
+
+		await expect.element(page.getByText(/Keine Dokumente warten/i)).toBeVisible();
+	});
+
+	it('renders the heading when docs has items', async () => {
+		render(TranscriptionColumn, { props: { docs: [makeDoc()], weeklyCount: 0 } });
+
+		await expect.element(page.getByRole('heading', { name: /text transkribieren/i })).toBeVisible();
+	});
+
+	it('renders the weekly pulse when weeklyCount > 0', async () => {
+		render(TranscriptionColumn, { props: { docs: [makeDoc()], weeklyCount: 5 } });
+
+		await expect.element(page.getByText(/diese Woche/i)).toBeVisible();
+	});
+
+	it('hides the weekly pulse when weeklyCount is 0', async () => {
+		render(TranscriptionColumn, { props: { docs: [makeDoc()], weeklyCount: 0 } });
+
+		await expect.element(page.getByText(/diese Woche/i)).not.toBeInTheDocument();
+	});
+
+	it('shows the block progress label when textedBlockCount > 0', async () => {
+		render(TranscriptionColumn, {
+			props: {
+				docs: [makeDoc({ textedBlockCount: 3, annotationCount: 10 })],
+				weeklyCount: 0
+			}
+		});
+
+		await expect.element(page.getByText('3 / 10 Blöcke')).toBeVisible();
+	});
+
+	it('shows the em-dash placeholder when textedBlockCount is 0', async () => {
+		render(TranscriptionColumn, { props: { docs: [makeDoc()], weeklyCount: 0 } });
+
+		expect(document.body.textContent).toContain('—');
+	});
+
+	it('renders the document title as a link with task=transcribe query', async () => {
+		render(TranscriptionColumn, { props: { docs: [makeDoc()], weeklyCount: 0 } });
+
+		await expect
+			.element(page.getByRole('link', { name: /brief 1923/i }))
+			.toHaveAttribute('href', '/documents/d1?task=transcribe');
+	});
+
+	it('omits the date when documentDate is undefined', async () => {
+		render(TranscriptionColumn, {
+			props: { docs: [makeDoc({ documentDate: undefined })], weeklyCount: 0 }
+		});
+
+		// formatMCDate should not be called; just verify component renders
+		await expect.element(page.getByRole('link', { name: /brief 1923/i })).toBeVisible();
+	});
+});