release: v0.13.0 (#535)

Twenty-nine commits since v0.12.0. See CHANGELOG.md for the full list
and the upgrade notes.

Ten additions — the SEO package (site URL, robots.txt, sitemap.xml,
JSON-LD), slideshow mode, opt-in original downloads, copy-link,
previous/next album navigation, alt text from the Immich description,
per-album location precision, the update notice, a Help tab, and a
subpage cover grid separate from its photo grid. Two fixes: CJK album
slugs, and the lightbox control bar.

Photo of the Day (#476) was built on `dev` and reverted as not planned;
it never appears in a release.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

https://claude.ai/code/session_01DmsHVRL9yQvckUB1ZpVWre

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: ralksta <ralksta@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

app/[...path]/AlbumDetailView.tsx

@@ -8,6 +8,9 @@ import Image from 'next/image';
 import React from 'react';
 import { getServerDictionary } from '@/lib/i18n/server';
 import { albumMetaDetail } from '@/lib/albumMeta';
+import { AlbumNav } from '@/components/AlbumNav';
+import { StructuredData } from '@/components/StructuredData';
+import type { AlbumNavPair } from '@/lib/albumNav';
 
 interface AlbumDetailViewProps {
   album: ImmichAlbum;
@@ -28,6 +31,10 @@ interface AlbumDetailViewProps {
   proofing?: boolean;
   /** Offer the "send by email" button in the proofing modal. */
   allowMailto?: boolean;
+  /** Neighbouring albums in the surrounding list, for the foot navigation. */
+  nav?: AlbumNavPair;
+  /** JSON-LD for this album, or null when no site URL is configured (#472). */
+  structuredData?: Record<string, unknown> | null;
 }
 
 export function AlbumDetailView({
@@ -45,12 +52,15 @@ export function AlbumDetailView({
   showGear = true,
   proofing,
   allowMailto,
+  nav,
+  structuredData,
 }: AlbumDetailViewProps) {
   const metaDetail = albumMetaDetail(album, showGear);
   const t = getServerDictionary();
 
   return (
     <>
+      {structuredData && <StructuredData data={structuredData} />}
       {heroImageUrl && (
         <div className="album-hero">
           <Image
@@ -93,6 +103,7 @@ export function AlbumDetailView({
         proofing={proofing}
         allowMailto={allowMailto}
       />
+      {nav && <AlbumNav {...nav} />}
     </>
   );
 }