test(admin/ocr): cover index and per-person page branches

admin/ocr index: heading, sender-models heading, global-history link,
defensive defaults for missing trainingInfo fields.

admin/ocr/[personId]: person name from personNames lookup, Unknown
fallback when not found, back-link href, missing-personNames defensive
handling.

8 tests across two pages.

Refs #496.

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

frontend/src/routes/admin/ocr/[personId]/page.svelte.test.ts

@@ -0,0 +1,68 @@
+import { describe, it, expect, afterEach } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+import AdminOcrPersonPage from './+page.svelte';
+
+afterEach(cleanup);
+
+describe('admin/ocr/[personId] page', () => {
+	it('renders the person name from personNames lookup', async () => {
+		render(AdminOcrPersonPage, {
+			props: {
+				data: {
+					personId: 'p-1',
+					history: {
+						runs: [],
+						personNames: { 'p-1': 'Anna Schmidt' }
+					}
+				}
+			}
+		});
+
+		await expect.element(page.getByRole('heading', { name: /anna schmidt/i })).toBeVisible();
+	});
+
+	it('falls back to "Unknown" when the personNames lookup misses', async () => {
+		render(AdminOcrPersonPage, {
+			props: {
+				data: {
+					personId: 'p-1',
+					history: {
+						runs: [],
+						personNames: {}
+					}
+				}
+			}
+		});
+
+		await expect.element(page.getByRole('heading', { name: /unknown/i })).toBeVisible();
+	});
+
+	it('renders the back link to /admin/ocr', async () => {
+		render(AdminOcrPersonPage, {
+			props: {
+				data: {
+					personId: 'p-1',
+					history: { runs: [], personNames: { 'p-1': 'Anna Schmidt' } }
+				}
+			}
+		});
+
+		await expect
+			.element(page.getByRole('link', { name: /^ocr$/i }))
+			.toHaveAttribute('href', '/admin/ocr');
+	});
+
+	it('handles missing personNames object gracefully', async () => {
+		render(AdminOcrPersonPage, {
+			props: {
+				data: {
+					personId: 'p-1',
+					history: { runs: undefined, personNames: undefined }
+				}
+			}
+		});
+
+		await expect.element(page.getByRole('heading', { name: /unknown/i })).toBeVisible();
+	});
+});