App 2.19.3: update log on the Logs tab

Every update and install step, with the platform's own result, kept
across the restart an install causes, so a failed install on the car
can be read off the screen.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6

app/src/unstable/java/com/evsuite/abrp/OtaUpdater.java

@@ -468,11 +468,14 @@ final class OtaUpdater {
             return InstallResult.SESSION_STARTED;
         } catch (Throwable t) {
             Log.w(TAG, "OTA session install failed; trying system install UI", t);
+            UpdateLog.record(context, "Installer session failed: " + t);
             try {
                 launchInstallerActivity(context, apk);
+                UpdateLog.record(context, "Opened the system installer instead");
                 return InstallResult.INSTALL_UI_STARTED;
             } catch (Throwable fallback) {
                 Log.w(TAG, "OTA install UI failed", fallback);
+                UpdateLog.record(context, "System installer failed too: " + fallback);
                 return InstallResult.SESSION_FAILED;
             }
         }
@@ -490,6 +493,8 @@ final class OtaUpdater {
                     .getPackageArchiveInfo(apk.getAbsolutePath(), 0);
             if (info == null || info.packageName == null) {
                 Log.w(TAG, "OTA archive cannot be parsed by the package manager");
+                UpdateLog.record(context, "Package manager cannot parse " + apk.getName()
+                        + " (" + apk.length() + " bytes)");
                 return false;
             }
             if (!context.getPackageName().equals(info.packageName)) {
@@ -533,6 +538,8 @@ final class OtaUpdater {
             // confirm, EXTRA_INTENT. An immutable PendingIntent would arrive empty.
             PendingIntent pending = PendingIntent.getBroadcast(context, sessionId, callback,
                     PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_MUTABLE);
+            // Written before commit: a successful install replaces this process at once.
+            UpdateLog.record(context, "Handed " + apk.length() + " bytes to the installer");
             session.commit(pending.getIntentSender());
             committed = true;
             Log.i(TAG, "OTA session " + sessionId + " committed (" + apk.length() + " bytes)");