feat(documents): inline relationship pills next to person names

Replaces the standalone "Beziehung" badge at the bottom of the
metadata drawer's Personen column with small inline pills attached
to each personCard — sender gets labelFromA, the single receiver
gets labelFromB. Matches docs/specs/stammbaum-doc-badge-spec.html.

Drops the now-unused RelationshipBadge component.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

frontend/src/lib/components/DocumentMetadataDrawer.svelte

@@ -3,7 +3,7 @@ import { m } from '$lib/paraglide/messages.js';
 import { formatDate } from '$lib/utils/date';
 import { formatDocumentStatus } from '$lib/utils/documentStatusLabel';
 import { getInitials, personAvatarColor } from '$lib/utils/personFormat';
-import RelationshipBadge from '$lib/components/RelationshipBadge.svelte';
+import RelationshipPill from '$lib/components/RelationshipPill.svelte';
 
 type Person = { id: string; firstName?: string | null; lastName: string; displayName: string };
 type Tag = { id: string; name: string };
@@ -47,7 +47,7 @@ function getFullName(person: Person): string {
 }
 </script>
 
-{#snippet personCard(person: Person)}
+{#snippet personCard(person: Person, relationLabel: string | null = null)}
 	<a
 		href="/persons/{person.id}"
 		class="group flex items-center gap-2.5 rounded px-2 py-1.5 transition-colors hover:bg-muted"
@@ -59,7 +59,10 @@ function getFullName(person: Person): string {
 		>
 			{getInitials(person.displayName)}
 		</span>
-		<span class="font-serif text-sm text-ink">{getFullName(person)}</span>
+		<span class="min-w-0 truncate font-serif text-sm text-ink">{getFullName(person)}</span>
+		{#if relationLabel}
+			<RelationshipPill label={relationLabel} />
+		{/if}
 	</a>
 {/snippet}
 
@@ -98,7 +101,7 @@ function getFullName(person: Person): string {
 							<p class="mb-1 font-sans text-xs font-medium text-ink-3">
 								{m.doc_details_field_sender()}
 							</p>
-							{@render personCard(sender)}
+							{@render personCard(sender, inferredRelationship?.labelFromA ?? null)}
 						</div>
 					{/if}
 					{#if receivers.length > 0}
@@ -107,8 +110,11 @@ function getFullName(person: Person): string {
 								{m.doc_details_field_receivers()}
 							</p>
 							<div class="space-y-0.5">
-								{#each displayedReceivers as receiver (receiver.id)}
-									{@render personCard(receiver)}
+								{#each displayedReceivers as receiver, i (receiver.id)}
+									{@render personCard(
+										receiver,
+										i === 0 ? (inferredRelationship?.labelFromB ?? null) : null
+									)}
 								{/each}
 							</div>
 							{#if hiddenReceiverCount > 0 && !showAllReceivers}
@@ -122,12 +128,6 @@ function getFullName(person: Person): string {
 							{/if}
 						</div>
 					{/if}
-					{#if inferredRelationship}
-						<RelationshipBadge
-							labelFromA={inferredRelationship.labelFromA}
-							labelFromB={inferredRelationship.labelFromB}
-						/>
-					{/if}
 				</div>
 			{:else}
 				<p class="font-serif text-sm text-ink-3">{m.doc_details_no_persons()}</p>

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

@@ -81,6 +81,25 @@ describe('DocumentMetadataDrawer — persons column', () => {
 		renderDrawer({ sender: null, receivers: [] });
 		await expect.element(page.getByText('Keine Personen zugeordnet')).toBeInTheDocument();
 	});
+
+	it('renders inferred relationship pills inline next to sender and receiver', async () => {
+		renderDrawer({
+			receivers: [receivers[0]],
+			inferredRelationship: { labelFromA: 'Elternteil', labelFromB: 'Kind' }
+		});
+
+		// Sender link contains its pill, receiver link contains its pill.
+		const senderLink = page.getByRole('link', { name: /Karl Müller.*Elternteil/i });
+		await expect.element(senderLink).toBeInTheDocument();
+		const receiverLink = page.getByRole('link', { name: /Anna Schmidt.*Kind/i });
+		await expect.element(receiverLink).toBeInTheDocument();
+	});
+
+	it('omits the pills when no inferred relationship is provided', async () => {
+		renderDrawer();
+		const elternteil = page.getByText('Elternteil');
+		expect(await elternteil.elements()).toHaveLength(0);
+	});
 });
 
 // ─── Tags column ─────────────────────────────────────────────────────────────

frontend/src/lib/components/RelationshipBadge.svelte

@@ -1,26 +0,0 @@
-<script lang="ts">
-import * as m from '$lib/paraglide/messages.js';
-
-type Props = { labelFromA: string; labelFromB: string };
-let { labelFromA, labelFromB }: Props = $props();
-</script>
-
-<div>
-	<p class="mb-1 font-sans text-xs font-medium text-ink-3">
-		{m.doc_details_field_relationship()}
-	</p>
-	<div class="flex items-center gap-1.5 px-2 font-serif text-sm text-ink">
-		<span class="font-semibold">{labelFromA}</span>
-		<svg
-			class="h-3 w-3 shrink-0 text-accent"
-			viewBox="0 0 24 24"
-			fill="none"
-			stroke="currentColor"
-			stroke-width="2.5"
-			aria-hidden="true"
-		>
-			<path stroke-linecap="round" stroke-linejoin="round" d="M13 7l5 5-5 5M6 12h12" />
-		</svg>
-		<span class="font-semibold">{labelFromB}</span>
-	</div>
-</div>

frontend/src/lib/components/RelationshipPill.svelte

@@ -0,0 +1,10 @@
+<script lang="ts">
+type Props = { label: string };
+let { label }: Props = $props();
+</script>
+
+<span
+	class="inline-flex shrink-0 items-center rounded-full border border-accent bg-accent/25 px-2 py-px font-sans text-[10px] font-bold tracking-[0.07em] text-ink uppercase"
+>
+	{label}
+</span>