release: v0.19.0

Release v0.19.0. See the `## [0.19.0] — 2026-09-29` section of
[CHANGELOG.md](https://github.com/ralksta/immich-folio/blob/dev/CHANGELOG.md)
for the full list.

Highlights: client proofing links (#683), custom content pages (#738),
asset picker search (#740), concurrent-edit detection (#742), env-locked
settings (#739), an accessibility baseline (#741), three security fixes
with advisories (#737, #755, #759), and a pre-release quality pass
(#780–#797).

---------

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>
Co-authored-by: Ralf <rohlenbo79@gmail.com>
Co-authored-by: Paul Thies <110185070+ImScheinox@users.noreply.github.com>
Co-authored-by: lancetm714 <108419425+lancetm714@users.noreply.github.com>
Co-authored-by: Lance Martin <lancetaylor95@gmail.com>

docs/deployment.md

@@ -215,7 +215,7 @@ CDN_URL=https://cdn.example.com
 ```
 
 ```
-https://cdn.example.com/api/image/v2:…?size=preview&w=1080&q=75
+https://cdn.example.com/api/image/v2:…?size=preview&w=1440
 ```
 
 The CDN uses Immich Folio as its origin. The first request for a photo is a
@@ -230,7 +230,7 @@ Folio URL, then:
 
 - **Cache `/api/image/*` and `/api/video/*`**, and nothing else. Pages are
   rendered per request, and other routes check cookies.
-- **Include the full query string in the cache key.** `size`, `w`, `q` and the
+- **Include the full query string in the cache key.** `size`, `w` and the
   `IMAGE_CACHE_VERSION` buster `v` all select a different file.
 - **Respect the origin's `Cache-Control`.** Photos come back
   `public, max-age=31536000, immutable`; errors (429, 503, 404) come back