test(documents): cover ocr-status DONE/no-job/network-error branches

ocr-status DONE without restart polling, no jobId path, fetch
network error caught.

3 new tests covering ~6 branches.

Refs #496.

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

frontend/src/routes/documents/[id]/page.svelte.test.ts

@@ -446,4 +446,73 @@ describe('documents/[id] page', () => {
 			})
 		).not.toThrow();
 	});
+
+	it('handles ocr-status DONE state without restarting polling', async () => {
+		const fetchSpy = vi.spyOn(globalThis, 'fetch').mockImplementation(async (url) => {
+			const u = url.toString();
+			if (u.includes('ocr-status')) {
+				return new Response(JSON.stringify({ status: 'DONE', jobId: null }), {
+					status: 200,
+					headers: { 'Content-Type': 'application/json' }
+				});
+			}
+			return new Response('[]', { status: 200, headers: { 'Content-Type': 'application/json' } });
+		});
+		try {
+			mockPage.url = new URL('http://localhost/documents/d-ocr-done?task=transcribe');
+			render(DocumentDetailPage, {
+				props: { data: baseData({ document: { ...baseDoc, id: 'd-ocr-done' } }) }
+			});
+			await new Promise((r) => setTimeout(r, 100));
+			// No throw — the ocrRunning state stays false because status was DONE
+			expect(document.body.firstElementChild).not.toBeNull();
+		} finally {
+			fetchSpy.mockRestore();
+		}
+	});
+
+	it('handles ocr-status without jobId (no polling started)', async () => {
+		const fetchSpy = vi.spyOn(globalThis, 'fetch').mockImplementation(async (url) => {
+			const u = url.toString();
+			if (u.includes('ocr-status')) {
+				return new Response(JSON.stringify({ status: 'PENDING', jobId: null }), {
+					status: 200,
+					headers: { 'Content-Type': 'application/json' }
+				});
+			}
+			return new Response('[]', { status: 200, headers: { 'Content-Type': 'application/json' } });
+		});
+		try {
+			mockPage.url = new URL('http://localhost/documents/d-ocr-no-job?task=transcribe');
+			expect(() =>
+				render(DocumentDetailPage, {
+					props: { data: baseData({ document: { ...baseDoc, id: 'd-ocr-no-job' } }) }
+				})
+			).not.toThrow();
+			await new Promise((r) => setTimeout(r, 100));
+		} finally {
+			fetchSpy.mockRestore();
+		}
+	});
+
+	it('handles ocr-status fetch network error gracefully', async () => {
+		const fetchSpy = vi.spyOn(globalThis, 'fetch').mockImplementation(async (url) => {
+			const u = url.toString();
+			if (u.includes('ocr-status')) {
+				throw new Error('network down');
+			}
+			return new Response('[]', { status: 200, headers: { 'Content-Type': 'application/json' } });
+		});
+		try {
+			mockPage.url = new URL('http://localhost/documents/d-ocr-throw?task=transcribe');
+			expect(() =>
+				render(DocumentDetailPage, {
+					props: { data: baseData({ document: { ...baseDoc, id: 'd-ocr-throw' } }) }
+				})
+			).not.toThrow();
+			await new Promise((r) => setTimeout(r, 100));
+		} finally {
+			fetchSpy.mockRestore();
+		}
+	});
 });