Release 0.9.0

Thirty-five commits since 0.8.0, and two of them are the reason this is a
minor rather than a patch.

**Storage became pluggable.** A folder backend now sits beside the
Nextcloud one behind the same seam, proved by a test rather than by a
trait, and the launch screen offers three routes into a library instead
of one.

**Faces gained a confidence that means something.** A suggestion is
scored against the people the user has actually named, the curve it came
from is stated rather than implied, and a regroup runs roughly three
times faster — the similarity scan and the merge engine both use the
machine's own SIMD kernel now, measured on the tablet where the NEON path
is the one that runs.

Alongside those, the framing tools got the quality-of-life pass this
release is named for: a crop can be held to a ratio, a straighten crops
away the corners it exposed, an export can be pinned to an exact
resolution with the common panel sizes offered as buttons, and dragging
the crop rectangle no longer tracks the pointer at half speed.

`pkgrel` returns to 1: a new `pkgver` is a new archive name, so there is
nothing left for a release number to disambiguate.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

packaging/PKGBUILD

@@ -4,9 +4,9 @@
 # makes `makepkg -si` in this directory install what you are actually working
 # on. Swap `source` for a tagged tarball when there is something to release.
 pkgname=darkroom
-pkgver=0.8.0
-# 2: the package gained the face models (docs/faces.md §2.2a). Same version,
-# different contents, so makepkg must not reuse the 0.7.0-1 archive.
+pkgver=0.9.0
+# Back to 1 with the version: a new pkgver is a new archive name, so there is
+# nothing for makepkg to reuse and nothing for a release number to disambiguate.
 pkgrel=1
 pkgdesc="Non-destructive RAW photo library and editor"
 arch=('x86_64')