Android: S-22's unpaired server from AppBuildInfo.releaseServerUrl (D-122)

AppBuildInfo gains releaseServerUrl, which :app fills from RELEASE_SERVER_URL (https://<kvitt.publicHost>:8443,
D-121). AboutRepositoryImpl shows it while no server is paired, in place of DataModule.DEFAULT_SERVER_URL, which
is deleted: :data no longer names a host. The fakes' AboutState uses the fixture https://kvitt.example.org:8443;
30 S-21/S-22 goldens re-recorded (only the host changed; oxipng -o 4 --strip safe). New test: unpaired About shows
the release server.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TQd3pEP9UeN2uifbHknQ7B

android/app/src/main/kotlin/se/hagstedt/kvitt/di/AppBuildInfoModule.kt

@@ -6,11 +6,12 @@ import dagger.hilt.InstallIn
 import dagger.hilt.components.SingletonComponent
 import se.hagstedt.kvitt.BuildConfig
 import se.hagstedt.kvitt.data.di.AppBuildInfo
+import se.hagstedt.kvitt.link.RELEASE_SERVER_URL
 import javax.inject.Singleton
 
 /**
- * Both variants: the app's version (§10.6) and build type for `:data`'s `DataModule`, which Hilt installs in debug and
- * release alike (it binds no `:core:model` interface, D-041).
+ * Both variants: the app's version (§10.6), build type and release server ([RELEASE_SERVER_URL], D-121, D-122) for
+ * `:data`'s `DataModule`, which Hilt installs in debug and release alike (it binds no `:core:model` interface, D-041).
  */
 @Module
 @InstallIn(SingletonComponent::class)
@@ -20,5 +21,6 @@ object AppBuildInfoModule {
         versionCode = BuildConfig.VERSION_CODE,
         versionName = BuildConfig.VERSION_NAME,
         debug = BuildConfig.DEBUG,
+        releaseServerUrl = RELEASE_SERVER_URL,
     )
 }