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>

lib/__tests__/config.test.ts

@@ -12,7 +12,13 @@ vi.mock('@/lib/env', () => ({
   },
 }));
 
-import { slugify, buildSubpageGrid, sanitizeNavLinks } from '@/lib/config';
+import {
+  slugify,
+  albumSlug,
+  normalizeSlug,
+  buildSubpageGrid,
+  sanitizeNavLinks,
+} from '@/lib/config';
 
 // EXPERIMENTAL: external navigation links — rendered as <a href> in the
 // header, so only http(s) URLs may survive sanitisation.
@@ -81,6 +87,64 @@ describe('slugify', () => {
   it('preserves numbers', () => {
     expect(slugify('Album 2024')).toBe('album-2024');
   });
+
+  // #522: stripping every non-ASCII character left CJK names with an empty
+  // slug, so their links pointed at "/" and clicking an album did nothing.
+  it('preserves CJK characters', () => {
+    expect(slugify('家族相册')).toBe('家族相册');
+    expect(slugify('写真')).toBe('写真');
+    expect(slugify('旅行 2024')).toBe('旅行-2024');
+  });
+
+  it('preserves Hangul in composed (NFC) form', () => {
+    const slug = slugify('가족 앨범');
+    expect(slug).toBe('가족-앨범');
+    expect(slug).toBe(slug.normalize('NFC'));
+  });
+
+  it('preserves other non-Latin scripts', () => {
+    expect(slugify('Москва 2024')).toBe('москва-2024');
+  });
+
+  it('still returns empty when nothing letter-like remains', () => {
+    expect(slugify('🎉🎉')).toBe('');
+  });
+});
+
+describe('albumSlug', () => {
+  it('uses the slugified name when it yields something', () => {
+    expect(albumSlug('Kloster Chorin', 'abc-123')).toBe('kloster-chorin');
+    expect(albumSlug('家族相册', 'abc-123')).toBe('家族相册');
+  });
+
+  // Without a fallback two emoji-only albums would both slugify to '' and
+  // collide on the same (unreachable) URL.
+  it('falls back to the album id when the name slugifies to nothing', () => {
+    expect(albumSlug('🎉', 'abc-123')).toBe('abc-123');
+    expect(albumSlug('', 'abc-123')).toBe('abc-123');
+  });
+});
+
+describe('normalizeSlug', () => {
+  // Next hands catch-all route segments over percent-encoded, so this is the
+  // half of #522 that fixing slugify() alone did not cure.
+  it('percent-decodes an encoded slug', () => {
+    expect(normalizeSlug('%E5%AE%B6%E6%97%8F%E7%9B%B8%E5%86%8C')).toBe('家族相册');
+  });
+
+  it('leaves an already decoded slug alone', () => {
+    expect(normalizeSlug('家族相册')).toBe('家族相册');
+    expect(normalizeSlug('kloster-chorin')).toBe('kloster-chorin');
+  });
+
+  it('composes decomposed (NFD) input', () => {
+    expect(normalizeSlug('가족-앨범'.normalize('NFD'))).toBe('가족-앨범');
+  });
+
+  it('survives a malformed percent sequence instead of throwing', () => {
+    expect(() => normalizeSlug('%E5%AE')).not.toThrow();
+    expect(normalizeSlug('100%-real')).toBe('100%-real');
+  });
 });
 
 describe('buildSubpageGrid', () => {