feat(lesereisen): JourneyItemCard, JourneyInterlude, JourneyReader with XSS + omit-rule specs

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

frontend/src/lib/geschichte/JourneyInterlude.svelte

@@ -0,0 +1,21 @@
+<script lang="ts">
+interface Props {
+	note: string;
+}
+
+let { note }: Props = $props();
+</script>
+
+<div
+	aria-label="Kuratorennotiz"
+	class="my-2 border-l-4 border-journey-border bg-journey-tint px-4 py-3"
+>
+	<p
+		class="text-center font-sans text-xs tracking-widest text-journey uppercase"
+		aria-hidden="true"
+	>
+		❦
+	</p>
+	<!-- plaintext — do NOT use {@html} here -->
+	<p class="font-serif text-base leading-relaxed text-ink-2 italic">{note}</p>
+</div>

frontend/src/lib/geschichte/JourneyInterlude.svelte.spec.ts

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+import { describe, it, expect, afterEach } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+
+const { default: JourneyInterlude } = await import('./JourneyInterlude.svelte');
+
+afterEach(cleanup);
+
+declare global {
+	interface Window {
+		__xss_interlude?: number;
+	}
+}
+
+describe('JourneyInterlude', () => {
+	it('renders the note text as plaintext', async () => {
+		render(JourneyInterlude, { props: { note: 'Eine kurze Pause auf der Reise.' } });
+
+		await expect.element(page.getByText('Eine kurze Pause auf der Reise.')).toBeVisible();
+	});
+
+	it('has aria-label Kuratorennotiz', async () => {
+		render(JourneyInterlude, { props: { note: 'Notiz' } });
+
+		const el = document.querySelector('[aria-label="Kuratorennotiz"]');
+		expect(el).not.toBeNull();
+	});
+
+	it('renders the section-break glyph ❦', async () => {
+		render(JourneyInterlude, { props: { note: 'Notiz' } });
+
+		expect(document.body.textContent).toContain('❦');
+	});
+
+	it('XSS: note is rendered as plaintext — injected payload does not execute', async () => {
+		// Interlude uses Svelte text interpolation ({note}), NOT {@html}.
+		render(JourneyInterlude, {
+			props: { note: '<img src=x onerror="window.__xss_interlude=1">' }
+		});
+
+		expect(window.__xss_interlude).toBeUndefined();
+		expect(document.body.textContent).toContain('<img src=x onerror=');
+	});
+});

frontend/src/lib/geschichte/JourneyItemCard.svelte

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+<script lang="ts">
+import { m } from '$lib/paraglide/messages.js';
+import { formatDate } from '$lib/shared/utils/date';
+import type { components } from '$lib/generated/api';
+
+type JourneyItemView = components['schemas']['JourneyItemView'];
+
+interface Props {
+	item: JourneyItemView;
+}
+
+let { item }: Props = $props();
+
+const doc = $derived(item.document!);
+const formattedDate = $derived(doc.documentDate ? formatDate(doc.documentDate, 'short') : null);
+const ariaLabel = $derived(
+	formattedDate
+		? m.journey_item_open_aria({ date: formattedDate })
+		: m.journey_item_open_aria_undated()
+);
+const hasNote = $derived(item.note != null && item.note.trim().length > 0);
+</script>
+
+<a
+	href="/documents/{doc.id}"
+	aria-label={ariaLabel}
+	class="flex min-h-[44px] flex-col gap-1 rounded border border-line bg-surface px-4 py-3 font-serif text-base text-ink hover:bg-muted focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+>
+	<span class="font-bold">{doc.title}</span>
+	{#if formattedDate}
+		<span class="font-sans text-sm text-ink-3">{formattedDate}</span>
+	{/if}
+</a>
+
+{#if hasNote}
+	<!-- plaintext — do NOT use {@html} here -->
+	<p class="mt-1 flex items-baseline gap-1 font-sans text-sm text-ink-3">
+		<span aria-hidden="true">✎</span>
+		{item.note}
+	</p>
+{/if}

frontend/src/lib/geschichte/JourneyItemCard.svelte.spec.ts

@@ -0,0 +1,123 @@
+import { describe, it, expect, afterEach } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+import type { components } from '$lib/generated/api';
+
+const { default: JourneyItemCard } = await import('./JourneyItemCard.svelte');
+
+afterEach(cleanup);
+
+declare global {
+	interface Window {
+		__xss_note?: number;
+	}
+}
+
+type JourneyItemView = components['schemas']['JourneyItemView'];
+
+const baseItem = (overrides: Partial<JourneyItemView> = {}): JourneyItemView => ({
+	id: 'item1',
+	position: 0,
+	document: {
+		id: 'd1',
+		title: 'Brief an Helene',
+		documentDate: '1923-05-15',
+		datePrecision: 'FULL'
+	},
+	...overrides
+});
+
+describe('JourneyItemCard', () => {
+	it('renders the document title', async () => {
+		render(JourneyItemCard, { props: { item: baseItem() } });
+
+		await expect.element(page.getByText('Brief an Helene')).toBeVisible();
+	});
+
+	it('renders the document date when documentDate is present', async () => {
+		render(JourneyItemCard, { props: { item: baseItem() } });
+
+		await expect.element(page.getByText(/1923/)).toBeVisible();
+	});
+
+	it('whole card is a single <a> element', async () => {
+		render(JourneyItemCard, { props: { item: baseItem() } });
+
+		const link = document.querySelector('a');
+		expect(link).not.toBeNull();
+		expect(link?.href).toContain('/documents/d1');
+	});
+
+	it('link has dated aria-label when documentDate is present', async () => {
+		render(JourneyItemCard, { props: { item: baseItem() } });
+
+		const link = document.querySelector('a');
+		expect(link?.getAttribute('aria-label')).toContain('Brief');
+		expect(link?.getAttribute('aria-label')).toContain('1923');
+	});
+
+	it('link has undated aria-label when documentDate is absent', async () => {
+		render(JourneyItemCard, {
+			props: {
+				item: baseItem({
+					document: { id: 'd2', title: 'Ohne Datum', datePrecision: 'NONE' }
+				})
+			}
+		});
+
+		const link = document.querySelector('a');
+		expect(link?.getAttribute('aria-label')).toBe('Brief öffnen');
+	});
+
+	it('omits date text when documentDate is absent', async () => {
+		render(JourneyItemCard, {
+			props: {
+				item: baseItem({
+					document: { id: 'd2', title: 'Ohne Datum', datePrecision: 'NONE' }
+				})
+			}
+		});
+
+		await expect.element(page.getByText(/1923/)).not.toBeInTheDocument();
+	});
+
+	it('renders ✎ glyph and note text when note is present', async () => {
+		render(JourneyItemCard, { props: { item: baseItem({ note: 'Ein wichtiger Brief' }) } });
+
+		expect(document.body.textContent).toContain('✎');
+		await expect.element(page.getByText('Ein wichtiger Brief')).toBeVisible();
+	});
+
+	it('omits annotation block when note is blank or whitespace', async () => {
+		render(JourneyItemCard, { props: { item: baseItem({ note: '   ' }) } });
+
+		expect(document.body.textContent).not.toContain('✎');
+	});
+
+	it('omits annotation block when note is absent', async () => {
+		render(JourneyItemCard, { props: { item: baseItem({ note: undefined }) } });
+
+		expect(document.body.textContent).not.toContain('✎');
+	});
+
+	it('link meets 44px touch-target (min-h-[44px] class)', async () => {
+		render(JourneyItemCard, { props: { item: baseItem() } });
+
+		const link = document.querySelector('a');
+		expect(link?.className).toContain('min-h-[44px]');
+	});
+
+	it('XSS: note is rendered as plaintext — injected payload does not execute', async () => {
+		// Note uses Svelte text interpolation ({note}), NOT {@html}.
+		render(JourneyItemCard, {
+			props: {
+				item: baseItem({
+					note: '<img src=x onerror="window.__xss_note=1">'
+				})
+			}
+		});
+
+		expect(window.__xss_note).toBeUndefined();
+		expect(document.body.textContent).toContain('<img src=x onerror=');
+	});
+});

frontend/src/lib/geschichte/JourneyReader.svelte

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+<script lang="ts">
+import { m } from '$lib/paraglide/messages.js';
+import { goto } from '$app/navigation';
+import { getConfirmService } from '$lib/shared/services/confirm.svelte';
+import { csrfFetch } from '$lib/shared/cookies';
+import JourneyItemCard from './JourneyItemCard.svelte';
+import JourneyInterlude from './JourneyInterlude.svelte';
+import type { components } from '$lib/generated/api';
+
+type GeschichteView = components['schemas']['GeschichteView'];
+type JourneyItemView = components['schemas']['JourneyItemView'];
+
+interface Props {
+	geschichte: GeschichteView;
+	canBlogWrite: boolean;
+}
+
+let { geschichte: g, canBlogWrite }: Props = $props();
+
+// Render intro only when body is a non-empty, non-whitespace string.
+const introText = $derived(g.body?.trim() ? g.body : null);
+
+// Omit items that have neither a document nor a non-blank note (dangling deleted-document guard).
+const validItems = $derived(
+	g.items.filter(
+		(item: JourneyItemView) =>
+			item.document != null || (item.note != null && item.note.trim().length > 0)
+	)
+);
+
+const confirm = getConfirmService();
+
+async function handleDelete() {
+	const ok = await confirm.confirm({
+		title: m.geschichte_delete_confirm_title(),
+		body: m.geschichte_delete_confirm_body(),
+		confirmLabel: m.btn_delete(),
+		cancelLabel: m.btn_cancel(),
+		destructive: true
+	});
+	if (!ok) return;
+	const res = await csrfFetch(`/api/geschichten/${g.id}`, { method: 'DELETE' });
+	if (res.ok) {
+		goto('/geschichten');
+	}
+}
+</script>
+
+{#if introText}
+	<!-- plaintext — do NOT use {@html} here -->
+	<p class="mb-8 font-serif text-base leading-relaxed text-ink-2 italic">{introText}</p>
+{/if}
+
+{#if validItems.length === 0}
+	<p class="font-sans text-sm text-ink-3" data-testid="journey-empty-state">
+		{m.journey_empty_state()}
+	</p>
+{:else}
+	<ol class="flex list-none flex-col gap-4">
+		{#each validItems as item (item.id)}
+			<li>
+				{#if item.document != null}
+					<JourneyItemCard item={item} />
+				{:else}
+					<JourneyInterlude note={item.note!} />
+				{/if}
+			</li>
+		{/each}
+	</ol>
+{/if}
+
+<!-- Author actions -->
+{#if canBlogWrite}
+	<div class="mt-10 flex items-center gap-3 border-t border-line pt-6">
+		<a
+			href="/geschichten/{g.id}/edit"
+			class="inline-flex h-11 items-center rounded border border-line bg-surface px-4 font-sans text-sm font-medium text-ink hover:bg-muted focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+		>
+			{m.btn_edit()}
+		</a>
+		<button
+			type="button"
+			onclick={handleDelete}
+			class="inline-flex h-11 items-center rounded font-sans text-sm font-medium text-danger hover:underline focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+		>
+			{m.btn_delete()}
+		</button>
+	</div>
+{/if}

frontend/src/lib/geschichte/JourneyReader.svelte.spec.ts

@@ -0,0 +1,166 @@
+import { describe, it, expect, afterEach } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+import { createConfirmService, CONFIRM_KEY } from '$lib/shared/services/confirm.svelte.js';
+import type { components } from '$lib/generated/api';
+
+const { default: JourneyReader } = await import('./JourneyReader.svelte');
+
+afterEach(cleanup);
+
+declare global {
+	interface Window {
+		__xss_journey?: number;
+	}
+}
+
+type GeschichteView = components['schemas']['GeschichteView'];
+type JourneyItemView = components['schemas']['JourneyItemView'];
+
+const baseGeschichte = (overrides: Partial<GeschichteView> = {}): GeschichteView => ({
+	id: 'g1',
+	title: 'Lesereise Berlin',
+	body: null as unknown as undefined,
+	type: 'JOURNEY',
+	status: 'PUBLISHED',
+	persons: [],
+	items: [],
+	createdAt: '2026-01-01T00:00:00Z',
+	updatedAt: '2026-01-01T00:00:00Z',
+	...overrides
+});
+
+const docItem = (id: string, title: string, position: number, note?: string): JourneyItemView => ({
+	id,
+	position,
+	document: { id: `d${id}`, title, datePrecision: 'FULL', documentDate: '1923-05-15' },
+	note
+});
+
+const interludeItem = (id: string, note: string, position: number): JourneyItemView => ({
+	id,
+	position,
+	document: undefined,
+	note
+});
+
+const ctx = () => new Map([[CONFIRM_KEY, createConfirmService()]]);
+
+describe('JourneyReader', () => {
+	it('renders intro paragraph when body is non-empty', async () => {
+		render(JourneyReader, {
+			context: ctx(),
+			props: {
+				geschichte: baseGeschichte({ body: 'Eine Reise durch die Geschichte.' }),
+				canBlogWrite: false
+			}
+		});
+
+		await expect.element(page.getByText('Eine Reise durch die Geschichte.')).toBeVisible();
+	});
+
+	it('omits intro paragraph when body is null', async () => {
+		render(JourneyReader, {
+			context: ctx(),
+			props: { geschichte: baseGeschichte({ body: undefined }), canBlogWrite: false }
+		});
+
+		// Only empty state should render
+		await expect.element(page.getByTestId('journey-empty-state')).toBeVisible();
+	});
+
+	it('omits intro paragraph when body is only whitespace', async () => {
+		render(JourneyReader, {
+			context: ctx(),
+			props: { geschichte: baseGeschichte({ body: '   ' }), canBlogWrite: false }
+		});
+
+		expect(document.body.textContent?.trim().replace(/\s+/g, ' ')).not.toContain('    ');
+		await expect.element(page.getByTestId('journey-empty-state')).toBeVisible();
+	});
+
+	it('renders empty-state message when items array is empty', async () => {
+		render(JourneyReader, {
+			context: ctx(),
+			props: { geschichte: baseGeschichte({ items: [] }), canBlogWrite: false }
+		});
+
+		await expect.element(page.getByText('Diese Lesereise ist noch leer.')).toBeVisible();
+	});
+
+	it('renders both intro and empty-state when body is set but items is empty', async () => {
+		render(JourneyReader, {
+			context: ctx(),
+			props: {
+				geschichte: baseGeschichte({
+					body: 'Eine Einleitung.',
+					items: []
+				}),
+				canBlogWrite: false
+			}
+		});
+
+		await expect.element(page.getByText('Eine Einleitung.')).toBeVisible();
+		await expect.element(page.getByText('Diese Lesereise ist noch leer.')).toBeVisible();
+	});
+
+	it('renders document items (JourneyItemCard)', async () => {
+		render(JourneyReader, {
+			context: ctx(),
+			props: {
+				geschichte: baseGeschichte({ items: [docItem('item1', 'Brief an Helene', 0)] }),
+				canBlogWrite: false
+			}
+		});
+
+		await expect.element(page.getByText('Brief an Helene')).toBeVisible();
+	});
+
+	it('renders interlude items (JourneyInterlude)', async () => {
+		render(JourneyReader, {
+			context: ctx(),
+			props: {
+				geschichte: baseGeschichte({ items: [interludeItem('inter1', 'Eine Pause.', 0)] }),
+				canBlogWrite: false
+			}
+		});
+
+		await expect.element(page.getByText('Eine Pause.')).toBeVisible();
+		expect(document.body.textContent).toContain('❦');
+	});
+
+	it('omits items where document is null AND note is blank (dangling-item rule)', async () => {
+		render(JourneyReader, {
+			context: ctx(),
+			props: {
+				geschichte: baseGeschichte({
+					items: [
+						{ id: 'dangling', position: 0, document: undefined, note: '   ' },
+						docItem('item2', 'Echter Brief', 1)
+					]
+				}),
+				canBlogWrite: false
+			}
+		});
+
+		await expect.element(page.getByText('Echter Brief')).toBeVisible();
+		// Empty-state must NOT render when valid items exist
+		await expect.element(page.getByText('Diese Lesereise ist noch leer.')).not.toBeInTheDocument();
+	});
+
+	it('XSS: Journey body is rendered as plaintext — injected payload does not execute', async () => {
+		// JourneyReader uses Svelte text interpolation, NOT {@html}.
+		render(JourneyReader, {
+			context: ctx(),
+			props: {
+				geschichte: baseGeschichte({
+					body: '<img src=x onerror="window.__xss_journey=1">'
+				}),
+				canBlogWrite: false
+			}
+		});
+
+		expect(window.__xss_journey).toBeUndefined();
+		expect(document.body.textContent).toContain('<img src=x onerror=');
+	});
+});