patches: add v1.7.0 series and register it as latest

Rebases the v1.6.0 de-brand + dark-theme patch series onto upstream
v1.7.0, which applied with no conflicts. Sanity-built locally: clean
git am, and goreleaser produced binaries/archives for all platforms
(including linux) from src/dist.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

README.md

@@ -80,6 +80,7 @@ Currently maintained:
 
 | Upstream tag | Patch set     | Contents                                                  |
 |--------------|---------------|-----------------------------------------------------------|
+| `v1.7.0`     | `v1.7.0/`     | `0001-webui-debrand.patch`, `0002-webui-dark-theme.patch` |
 | `v1.6.0`     | `v1.6.0/`     | `0001-webui-debrand.patch`, `0002-webui-dark-theme.patch` |
 | `v1.5.0`     | `v1.5.0/`     | `0001-webui-debrand.patch`                                |
 
@@ -118,7 +119,8 @@ shared asset files plus bundled fonts:
   matching the existing self-hosted Roboto.
 
 The only markup change is the login page's light background gradient,
-which becomes a solid dark surface. Currently applied to `v1.6.0` only.
+which becomes a solid dark surface. Currently applied to `v1.6.0` and
+`v1.7.0`.
 
 ## Adding / refreshing a version
 

ci/support-matrix.yaml

@@ -12,6 +12,8 @@
 #   patches  directory under patches/ to apply (defaults to `tag`)
 
 versitygw:
+  - tag: v1.7.0
+    patches: v1.7.0
   - tag: v1.6.0
     patches: v1.6.0
   - tag: v1.5.0