Update install failures become visible: blocked, aborted, failed (D-155)

The PackageInstaller session's final status now reaches UpdateRepository:
InstallResultReceiver hands it by session id to the waiting AndroidApkInstaller
call (ApkInstaller.install returns a PendingInstall). installOutcome() maps
STATUS_FAILURE_BLOCKED to UpdateFailure.Blocked, STATUS_FAILURE_ABORTED back to
Available without an error, and every other failure to UpdateFailure.Install
with the installer's EXTRA_STATUS_MESSAGE. The cached APK is deleted once the
installer answers, so "Try again" downloads again. UpdateBanner's Failed variant
shows the reason on S-4 and S-22; two core:design strings (en/sv) with their
docs/ux/strings.csv rows. Unit tests for the mapping, the repository outcomes
and the receiver; goldens: update_banner re-recorded, S-17-install-blocked,
S-17-install-failed and s22_about_install_blocked new.

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

android/feature/home/src/test/kotlin/se/hagstedt/kvitt/feature/home/HomeScreenshotTest.kt

@@ -53,6 +53,8 @@ val homeStates: List<ScreenState> = listOf(
     home("S-17-update", HomeScenarios.updateNeedsPermission) { it.onUpdate() },
     home("S-17-update-progress", HomeScenarios.updateDownloading),
     home("S-17-update-failed", HomeScenarios.updateFailed),
+    home("S-17-install-blocked", HomeScenarios.updateBlocked),
+    home("S-17-install-failed", HomeScenarios.updateInstallFailed),
     sync("S-16-sync", HomeScenarios.syncLoaded),
     sync("S-16-sync-empty", HomeScenarios.household),
     sync("S-16-sync-rejections", HomeScenarios.allRejections),
@@ -107,6 +109,7 @@ class HomeScreenshotTest(private val state: String) {
             "S-4-home-syncing", "S-4-home-empty", "S-4-home-loading", "S-4-home-offline", "S-4-home-only-archived", "S-4-home-long",
             "S-4-home-refreshing",
             "S-17-update-banner", "S-17-update-permission", "S-17-update", "S-17-update-progress", "S-17-update-failed",
+            "S-17-install-blocked", "S-17-install-failed",
             "S-16-sync", "S-16-sync-empty", "S-16-sync-rejections", "S-16-sync-clock", "S-16-sync-running", "S-16-sync-error",
             "S-16-sync-offline", "S-16-sync-long", "S-16-sync-lost", "S-16-sync-lost-payment", "S-16-sync-lost-deleted",
         ).map { arrayOf<Any>(it) }