refactor(ocr): delete unused OcrProgressBar component

The skipped-pages warning is inlined directly in +page.svelte.
The component and its tests are no longer needed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/lib/components/OcrProgressBar.svelte

@@ -1,30 +0,0 @@
-<script lang="ts">
-let {
-	currentPage,
-	totalPages,
-	skippedPages = 0
-}: {
-	currentPage: number;
-	totalPages: number;
-	skippedPages?: number;
-} = $props();
-</script>
-
-{#if totalPages > 0}
-	<div
-		class="mt-2 flex flex-col items-center"
-		role="progressbar"
-		aria-valuenow={currentPage}
-		aria-valuemax={totalPages}
-		aria-label="OCR progress"
-	>
-		<span class="text-xs text-gray-400 tabular-nums">
-			{currentPage} / {totalPages}
-		</span>
-		{#if skippedPages > 0}
-			<span class="mt-1 text-xs text-amber-600" data-testid="skipped-warning">
-				{skippedPages} Seiten übersprungen
-			</span>
-		{/if}
-	</div>
-{/if}

frontend/src/lib/components/OcrProgressBar.svelte.spec.ts

@@ -1,35 +0,0 @@
-import { describe, it, expect, afterEach } from 'vitest';
-import { cleanup, render } from 'vitest-browser-svelte';
-import { page } from 'vitest/browser';
-import OcrProgressBar from './OcrProgressBar.svelte';
-
-afterEach(cleanup);
-
-describe('OcrProgressBar', () => {
-	it('renders with correct ARIA attributes', async () => {
-		render(OcrProgressBar, { currentPage: 2, totalPages: 5 });
-		const bar = page.getByRole('progressbar');
-		await expect.element(bar).toHaveAttribute('aria-valuenow', '2');
-		await expect.element(bar).toHaveAttribute('aria-valuemax', '5');
-	});
-
-	it('hides when totalPages is zero', async () => {
-		render(OcrProgressBar, { currentPage: 0, totalPages: 0 });
-		await expect.element(page.getByRole('progressbar')).not.toBeInTheDocument();
-	});
-
-	it('shows page counter text', async () => {
-		render(OcrProgressBar, { currentPage: 3, totalPages: 7 });
-		await expect.element(page.getByText('3 / 7')).toBeInTheDocument();
-	});
-
-	it('shows skipped pages warning when skippedPages > 0', async () => {
-		render(OcrProgressBar, { currentPage: 5, totalPages: 5, skippedPages: 2 });
-		await expect.element(page.getByTestId('skipped-warning')).toBeInTheDocument();
-	});
-
-	it('does not show warning when skippedPages is 0', async () => {
-		render(OcrProgressBar, { currentPage: 3, totalPages: 5, skippedPages: 0 });
-		await expect.element(page.getByTestId('skipped-warning')).not.toBeInTheDocument();
-	});
-});