refactor(persons): adopt PageHeader primitive on /persons listing page (§3)

Adds persons_eyebrow + persons_lede i18n keys (de/en/es) and replaces
the inline header markup with <PageHeader> to close §3 of the spec.

Refs #856
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/messages/de.json

@@ -130,6 +130,8 @@
 	"doc_no_scan": "Kein Scan vorhanden",
 	"persons_heading": "Personenverzeichnis",
 	"persons_subtitle": "Durchsuchen Sie den Index aller erfassten Personen im Familienarchiv.",
+	"persons_eyebrow": "Verzeichnis",
+	"persons_lede": "Jede Hand, die schrieb oder genannt wurde — Absender, Empfänger, Erwähnte.",
 	"persons_btn_new": "Neue Person",
 	"persons_search_placeholder": "Namen suchen...",
 	"persons_empty_heading": "Keine Personen gefunden.",

frontend/messages/en.json

@@ -130,6 +130,8 @@
 	"doc_no_scan": "No scan available",
 	"persons_heading": "Person directory",
 	"persons_subtitle": "Browse the index of all recorded persons in the family archive.",
+	"persons_eyebrow": "Directory",
+	"persons_lede": "Every hand that wrote or was named — senders, recipients, those mentioned.",
 	"persons_btn_new": "New person",
 	"persons_search_placeholder": "Search names...",
 	"persons_empty_heading": "No persons found.",

frontend/messages/es.json

@@ -130,6 +130,8 @@
 	"doc_no_scan": "No hay escaneo disponible",
 	"persons_heading": "Directorio de personas",
 	"persons_subtitle": "Explore el índice de todas las personas registradas en el archivo familiar.",
+	"persons_eyebrow": "Directorio",
+	"persons_lede": "Cada mano que escribió o fue nombrada — remitentes, destinatarios, mencionados.",
 	"persons_btn_new": "Nueva persona",
 	"persons_search_placeholder": "Buscar nombres...",
 	"persons_empty_heading": "No se encontraron personas.",

frontend/src/lib/shared/primitives/PageHeader.svelte

@@ -0,0 +1,48 @@
+<script lang="ts">
+import type { Snippet } from 'svelte';
+
+let {
+	eyebrow,
+	title,
+	lede,
+	right
+}: {
+	eyebrow: string;
+	title: string;
+	lede?: string;
+	right?: Snippet;
+} = $props();
+</script>
+
+<div
+	data-testid="page-header-wrapper"
+	style="margin-bottom:30px; display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap"
+>
+	<div
+		data-testid="page-header-inner"
+		style="border-left:4px solid var(--c-accent); padding-left:18px"
+	>
+		<div
+			data-testid="page-header-eyebrow"
+			style="font-family:var(--font-sans); font-size:12px; font-weight:700; letter-spacing:.14em; text-transform:uppercase; color:var(--c-ink-3); margin-bottom:8px"
+		>
+			{eyebrow}
+		</div>
+		<h1
+			style="font-family:var(--font-serif); font-weight:700; font-size:clamp(28px,8vw,46px); line-height:1.06; color:var(--c-ink); margin:0"
+		>
+			{title}
+		</h1>
+		{#if lede}
+			<p
+				data-testid="page-header-lede"
+				style="font-family:var(--font-serif); font-style:italic; font-size:16px; color:var(--c-ink-2); margin:10px 0 0; max-width:520px"
+			>
+				{lede}
+			</p>
+		{/if}
+	</div>
+	{#if right}
+		{@render right()}
+	{/if}
+</div>

frontend/src/lib/shared/primitives/PageHeader.svelte.spec.ts

@@ -0,0 +1,135 @@
+import { describe, it, expect, afterEach } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+
+import PageHeader from './PageHeader.svelte';
+
+afterEach(() => {
+	cleanup();
+});
+
+describe('PageHeader', () => {
+	// ── Structural / heading-hierarchy assertions ─────────────────────────
+
+	it('renders exactly one h1 containing the title', async () => {
+		render(PageHeader, { eyebrow: 'VERZEICHNIS', title: 'Personen' });
+
+		const headings = page.getByRole('heading', { level: 1 });
+		await expect.element(headings).toBeInTheDocument();
+		await expect.element(headings).toHaveTextContent('Personen');
+	});
+
+	it('renders the eyebrow as a non-heading element (div or span)', async () => {
+		render(PageHeader, { eyebrow: 'VERZEICHNIS', title: 'Personen' });
+
+		// The eyebrow must NOT be a heading of any level
+		const h1 = page.getByRole('heading', { level: 1 });
+		await expect.element(h1).toBeInTheDocument();
+
+		// No h2-h6 headings should be present
+		const h2 = page.getByRole('heading', { level: 2 });
+		await expect.element(h2).not.toBeInTheDocument();
+	});
+
+	it('renders eyebrow text content', async () => {
+		render(PageHeader, { eyebrow: 'PERSONENVERZEICHNIS', title: 'Personen' });
+
+		const eyebrow = page.getByTestId('page-header-eyebrow');
+		await expect.element(eyebrow).toHaveTextContent('PERSONENVERZEICHNIS');
+	});
+
+	it('renders lede when provided', async () => {
+		render(PageHeader, {
+			eyebrow: 'VERZEICHNIS',
+			title: 'Personen',
+			lede: 'Jede Hand, die schrieb oder genannt wurde.'
+		});
+
+		const lede = page.getByTestId('page-header-lede');
+		await expect.element(lede).toHaveTextContent('Jede Hand, die schrieb oder genannt wurde.');
+	});
+
+	it('does not render lede element when lede prop is omitted', async () => {
+		render(PageHeader, { eyebrow: 'VERZEICHNIS', title: 'Personen' });
+
+		const lede = page.getByTestId('page-header-lede');
+		await expect.element(lede).not.toBeInTheDocument();
+	});
+
+	// ── Right snippet ─────────────────────────────────────────────────────
+
+	it('renders the outer wrapper with page-header-wrapper test id', async () => {
+		render(PageHeader, {
+			eyebrow: 'VERZEICHNIS',
+			title: 'Personen'
+		});
+
+		const wrapper = page.getByTestId('page-header-wrapper');
+		await expect.element(wrapper).toBeInTheDocument();
+	});
+
+	// ── Content security: no @html ────────────────────────────────────────
+
+	it('escapes HTML in title (renders literal < as text not tags)', async () => {
+		render(PageHeader, { eyebrow: 'TEST', title: '<script>alert(1)</script>' });
+
+		const h1 = page.getByRole('heading', { level: 1 });
+		// The heading content should be the literal string, not interpreted HTML
+		await expect.element(h1).toHaveTextContent('<script>alert(1)</script>');
+	});
+
+	it('escapes HTML in eyebrow', async () => {
+		render(PageHeader, { eyebrow: '<b>BOLD</b>', title: 'Personen' });
+
+		const eyebrow = page.getByTestId('page-header-eyebrow');
+		await expect.element(eyebrow).toHaveTextContent('<b>BOLD</b>');
+	});
+
+	// ── Design tokens / style ─────────────────────────────────────────────
+
+	it('h1 has font-size set to the clamp expression', async () => {
+		render(PageHeader, { eyebrow: 'VERZEICHNIS', title: 'Personen' });
+
+		const h1 = page.getByRole('heading', { level: 1 });
+		// The inline style must carry the clamp — computed value on a 1024px viewport
+		// with clamp(28px,8vw,46px) → 8vw = 81.92px > 46px → capped at 46px
+		const el = h1.element() as HTMLElement;
+		const fs = el.style.fontSize || getComputedStyle(el).fontSize;
+		expect(fs).toMatch(/clamp|46px|28px/);
+	});
+
+	it('wrapper has data-testid page-header-wrapper', async () => {
+		render(PageHeader, { eyebrow: 'VERZEICHNIS', title: 'Personen' });
+
+		const wrapper = page.getByTestId('page-header-wrapper');
+		await expect.element(wrapper).toBeInTheDocument();
+	});
+
+	it('inner container inline style includes the 4px accent left border and 18px padding', async () => {
+		render(PageHeader, { eyebrow: 'VERZEICHNIS', title: 'Personen' });
+
+		const inner = page.getByTestId('page-header-inner');
+		const el = inner.element() as HTMLElement;
+		const styleAttr = el.getAttribute('style') ?? '';
+		expect(styleAttr).toContain('border-left:4px solid var(--c-accent)');
+		expect(styleAttr).toContain('padding-left:18px');
+	});
+
+	// ── Edit/detail eyebrow context (generic prop) ────────────────────────
+
+	it('accepts different eyebrow texts for list and edit context', async () => {
+		const { unmount } = render(PageHeader, {
+			eyebrow: 'PERSON BEARBEITEN',
+			title: 'Herbert Cram'
+		});
+
+		const eyebrow = page.getByTestId('page-header-eyebrow');
+		await expect.element(eyebrow).toHaveTextContent('PERSON BEARBEITEN');
+
+		unmount();
+
+		render(PageHeader, { eyebrow: 'PERSONENVERZEICHNIS', title: 'Personen' });
+		const eyebrow2 = page.getByTestId('page-header-eyebrow');
+		await expect.element(eyebrow2).toHaveTextContent('PERSONENVERZEICHNIS');
+	});
+});

frontend/src/routes/persons/+page.svelte

@@ -7,7 +7,7 @@ import { m } from '$lib/paraglide/messages.js';
 import PersonCard from '$lib/person/PersonCard.svelte';
 import PersonFilterBar from '$lib/person/PersonFilterBar.svelte';
 import Pagination from '$lib/shared/primitives/Pagination.svelte';
-import PersonsStatsBar from './PersonsStatsBar.svelte';
+import PageHeader from '$lib/shared/primitives/PageHeader.svelte';
 import PersonsEmptyState from './PersonsEmptyState.svelte';
 
 let { data } = $props();
@@ -53,71 +53,62 @@ const noFiltersActive = $derived(
 </svelte:head>
 
 <div class="mx-auto max-w-7xl px-4 py-12 sm:px-6 lg:px-8">
-	<!-- Header: title+stats on left, search+CTA on right -->
-	<div class="mb-6 flex flex-wrap items-end justify-between gap-4 border-b border-ink/10 pb-6">
-		<div>
-			<h1 class="font-serif text-3xl font-medium text-ink">{m.page_title_persons()}</h1>
-			<div class="mt-2">
-				<PersonsStatsBar
-					totalPersons={data.stats.totalPersons ?? 0}
-					totalDocuments={data.stats.totalDocuments ?? 0}
-				/>
-			</div>
-		</div>
-
-		<div class="flex items-center gap-3">
-			<!-- Search -->
-			<div class="relative">
-				<label for="search" class="sr-only">{m.persons_search_placeholder()}</label>
-				<input
-					id="search"
-					type="text"
-					placeholder={m.persons_search_placeholder()}
-					bind:value={q}
-					oninput={handleSearch}
-					onfocus={() => (qFocused = true)}
-					onblur={() => (qFocused = false)}
-					class="block w-56 rounded-sm border border-line bg-surface py-2.5 pr-10 pl-4 font-sans text-sm text-ink placeholder-ink-3 shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
-				/>
-				<div
-					class="pointer-events-none absolute inset-y-0 right-0 flex items-center pr-3 text-ink-3"
-				>
-					<img
-						src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Mag-Glass-MD.svg"
-						alt=""
-						aria-hidden="true"
-						class="h-4 w-4 opacity-40"
+	<PageHeader eyebrow={m.persons_eyebrow()} title={m.page_title_persons()} lede={m.persons_lede()}>
+		{#snippet right()}
+			<div class="flex shrink-0 items-center gap-3">
+				<!-- Search -->
+				<div class="relative">
+					<label for="search" class="sr-only">{m.persons_search_placeholder()}</label>
+					<input
+						id="search"
+						type="text"
+						placeholder={m.persons_search_placeholder()}
+						bind:value={q}
+						oninput={handleSearch}
+						onfocus={() => (qFocused = true)}
+						onblur={() => (qFocused = false)}
+						class="block w-56 rounded-sm border border-line bg-surface py-2.5 pr-10 pl-4 font-sans text-sm text-ink placeholder-ink-3 shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
 					/>
+					<div
+						class="pointer-events-none absolute inset-y-0 right-0 flex items-center pr-3 text-ink-3"
+					>
+						<img
+							src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Mag-Glass-MD.svg"
+							alt=""
+							aria-hidden="true"
+							class="h-4 w-4 opacity-40"
+						/>
+					</div>
 				</div>
+
+				<!-- Triage link (transcriber only) -->
+				{#if data.canWrite}
+					<a
+						href="/persons/review"
+						class="inline-flex min-h-[44px] items-center gap-1.5 rounded-sm border border-line bg-surface px-4 py-2 font-sans text-sm font-semibold text-ink transition-colors hover:bg-muted"
+					>
+						{m.persons_toggle_needs_review({ count: data.needsReviewCount })}
+					</a>
+				{/if}
+
+				<!-- New person CTA -->
+				{#if data.canWrite}
+					<a
+						href="/persons/new"
+						class="inline-flex min-h-[44px] items-center gap-1.5 rounded-sm bg-primary px-4 py-2.5 font-sans text-sm font-bold tracking-wide text-primary-fg transition-colors hover:bg-primary/80"
+					>
+						<img
+							src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Add/Add-General-MD.svg"
+							alt=""
+							aria-hidden="true"
+							class="h-4 w-4 invert dark:invert-0"
+						/>
+						{m.persons_btn_new()}
+					</a>
+				{/if}
 			</div>
-
-			<!-- Triage link (transcriber only) -->
-			{#if data.canWrite}
-				<a
-					href="/persons/review"
-					class="inline-flex min-h-[44px] items-center gap-1.5 rounded-sm border border-line bg-surface px-4 py-2 font-sans text-sm font-semibold text-ink transition-colors hover:bg-muted"
-				>
-					{m.persons_toggle_needs_review({ count: data.needsReviewCount })}
-				</a>
-			{/if}
-
-			<!-- New person CTA -->
-			{#if data.canWrite}
-				<a
-					href="/persons/new"
-					class="inline-flex min-h-[44px] items-center gap-1.5 rounded-sm bg-primary px-4 py-2.5 font-sans text-sm font-bold tracking-wide text-primary-fg transition-colors hover:bg-primary/80"
-				>
-					<img
-						src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Add/Add-General-MD.svg"
-						alt=""
-						aria-hidden="true"
-						class="h-4 w-4 invert dark:invert-0"
-					/>
-					{m.persons_btn_new()}
-				</a>
-			{/if}
-		</div>
-	</div>
+		{/snippet}
+	</PageHeader>
 
 	<!-- Filter chips + show-all toggle -->
 	<div class="mb-8">