fix(admin): locale-agnostic OcrHealthBar tests, focus rings on all OCR links

OcrHealthBar spec used /online/i and /offline/i text matchers that would fail
in Spanish locale — replaced with CSS class assertions on role="img" dot.

Added focus-visible:ring-2/ring-brand-navy/rounded-sm to all links in OCR
admin pages (OcrModelsTable person+details, global history link, back-links
in global and personId detail pages) to satisfy WCAG 2.4.7.

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

frontend/src/routes/admin/ocr/+page.svelte

@@ -34,7 +34,7 @@ const { trainingInfo } = $derived(data);
 			</h2>
 			<a
 				href="/admin/ocr/global"
-				class="text-xs font-medium text-brand-navy/60 transition-colors hover:text-brand-navy"
+				class="text-xs font-medium text-brand-navy/60 transition-colors hover:text-brand-navy focus-visible:rounded-sm focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:outline-none"
 			>
 				{m.ocr_global_history_link()}
 			</a>

frontend/src/routes/admin/ocr/OcrHealthBar.svelte.spec.ts

@@ -1,6 +1,5 @@
 import { afterEach, describe, it, expect } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
-import { page } from 'vitest/browser';
 import OcrHealthBar from './OcrHealthBar.svelte';
 
 afterEach(cleanup);
@@ -8,11 +7,13 @@ afterEach(cleanup);
 describe('OcrHealthBar', () => {
 	it('shows online status when OCR service is available', async () => {
 		render(OcrHealthBar, { ocrServiceAvailable: true });
-		await expect.element(page.getByText(/online/i)).toBeInTheDocument();
+		const dot = document.querySelector('[role="img"]');
+		expect(dot?.className).toContain('bg-green-500');
 	});
 
 	it('shows offline status when OCR service is unavailable', async () => {
 		render(OcrHealthBar, { ocrServiceAvailable: false });
-		await expect.element(page.getByText(/offline/i)).toBeInTheDocument();
+		const dot = document.querySelector('[role="img"]');
+		expect(dot?.className).toContain('bg-red-500');
 	});
 });

frontend/src/routes/admin/ocr/OcrModelsTable.svelte

@@ -42,7 +42,10 @@ let {
 			{#each senderModels as model (model.id)}
 				<tr>
 					<td class="border-brand-sand/50 border-b py-3">
-						<a href="/admin/ocr/{model.personId}" class="text-brand-navy hover:underline">
+						<a
+							href="/admin/ocr/{model.personId}"
+							class="text-brand-navy hover:underline focus-visible:rounded-sm focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:outline-none"
+						>
 							{personNames[model.personId] ?? model.personId}
 						</a>
 					</td>
@@ -58,7 +61,8 @@ let {
 					<td class="border-brand-sand/50 border-b py-3">
 						<a
 							href="/admin/ocr/{model.personId}"
-							class="font-medium text-brand-navy hover:underline">{m.ocr_table_details()}</a
+							class="font-medium text-brand-navy hover:underline focus-visible:rounded-sm focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:outline-none"
+							>{m.ocr_table_details()}</a
 						>
 					</td>
 				</tr>

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

@@ -11,7 +11,7 @@ const personName = $derived(data.history.personNames?.[params.personId] ?? 'Unkn
 	<div class="flex items-center gap-4">
 		<a
 			href="/admin/ocr"
-			class="group inline-flex items-center text-xs font-bold tracking-widest text-gray-500 uppercase transition-colors hover:text-brand-navy"
+			class="group inline-flex items-center text-xs font-bold tracking-widest text-gray-500 uppercase transition-colors hover:text-brand-navy focus-visible:rounded-sm focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:outline-none"
 		>
 			<svg
 				class="mr-2 h-4 w-4 transform transition-transform group-hover:-translate-x-1"

frontend/src/routes/admin/ocr/global/+page.svelte

@@ -10,7 +10,7 @@ let { data }: { data: PageData } = $props();
 	<div class="flex items-center gap-4">
 		<a
 			href="/admin/ocr"
-			class="group inline-flex items-center text-xs font-bold tracking-widest text-gray-500 uppercase transition-colors hover:text-brand-navy"
+			class="group inline-flex items-center text-xs font-bold tracking-widest text-gray-500 uppercase transition-colors hover:text-brand-navy focus-visible:rounded-sm focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:outline-none"
 		>
 			<svg
 				class="mr-2 h-4 w-4 transform transition-transform group-hover:-translate-x-1"