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/core/fakes/src/main/kotlin/se/hagstedt/kvitt/fakes/FakeScenarios.kt

@@ -71,7 +71,7 @@ object FakeScenarios {
         clockSkew = false,
         syncRunning = false,
         update = UpdateState.None,
-        about = AboutState("dev", 1, "https://icehack.asuscomm.com:8443", null, null),
+        about = AboutState("dev", 1, "https://kvitt.example.org:8443", null, null),
         online = true,
         today = "2026-10-17",
         now = "2026-10-17T06:00:00.000Z",

android/core/fakes/src/main/kotlin/se/hagstedt/kvitt/fakes/settings/SettingsScenarios.kt

@@ -116,7 +116,7 @@ object SettingsScenarios {
         devices = devices,
         invites = listOf(pendingDeviceInvite),
         lastSuccessAt = "2026-10-17T11:59:00.000Z",
-        about = AboutState("1.1", 11, "https://icehack.asuscomm.com:8443", "1.1.0", 3),
+        about = AboutState("1.1", 11, "https://kvitt.example.org:8443", "1.1.0", 3),
         today = "2026-10-17",
         now = "2026-10-17T12:02:00.000Z",
         defaultAccountId = huset.id,