feat(ui): add alias management to person edit page

NameHistoryEditCard with add form (type dropdown + name fields),
delete with confirmation modal, and IDOR-safe client-side fetch
calls. Placed between Personendaten and DangerZone cards.

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

frontend/src/routes/persons/[id]/edit/+page.svelte

@@ -3,6 +3,7 @@ import { m } from '$lib/paraglide/messages.js';
 import { enhance } from '$app/forms';
 import PersonEditForm from './PersonEditForm.svelte';
 import PersonEditSaveBar from './PersonEditSaveBar.svelte';
+import NameHistoryEditCard from './NameHistoryEditCard.svelte';
 import PersonDangerZone from './PersonDangerZone.svelte';
 
 let { data, form } = $props();
@@ -49,8 +50,15 @@ const person = $derived(data.person);
 			<PersonEditForm person={person} />
 		</div>
 
-		<PersonDangerZone person={person} form={form} />
-
 		<PersonEditSaveBar discardHref="/persons/{person.id}" />
 	</form>
+
+	<NameHistoryEditCard
+		personId={person.id}
+		personFirstName={person.firstName}
+		aliases={data.aliases}
+		canWrite={true}
+	/>
+
+	<PersonDangerZone person={person} form={form} />
 </div>