Stabilize Android VPN upgrade restart

clients/android/app/build.gradle

@@ -30,8 +30,8 @@ android {
         applicationId "su.cin.rapvpn"
         minSdk 26
         targetSdk 35
-        versionCode 205
-        versionName "0.2.205"
+        versionCode 206
+        versionName "0.2.206"
         buildConfigField "String", "DEFAULT_BACKEND_URL", "\"${normalizeGradleString(defaultBackendUrl)}\""
         buildConfigField "String", "DEFAULT_CLUSTER_ID", "\"${normalizeGradleString(defaultClusterId)}\""
         buildConfigField "String", "DEFAULT_ORGANIZATION_ID", "\"${normalizeGradleString(defaultOrganizationId)}\""

clients/android/app/src/main/java/su/cin/rapvpn/RapAutostartReceiver.java

@@ -30,6 +30,11 @@ public final class RapAutostartReceiver extends BroadcastReceiver {
         if (prefs.getBoolean(PREF_MANUAL_STOPPED, false)) {
             return;
         }
+        if (Intent.ACTION_MY_PACKAGE_REPLACED.equals(action)) {
+            // Diagnostic service owns post-upgrade VPN restart. Starting both services from
+            // MY_PACKAGE_REPLACED can race foreground-service startup and leave diagnostics stale.
+            return;
+        }
         String profile = prefs.getString(PREF_PROFILE_JSON, "");
         String backendUrl = prefs.getString(PREF_BACKEND_URL, "");
         String clusterId = prefs.getString(PREF_CLUSTER_ID, "");

clients/android/app/src/main/java/su/cin/rapvpn/RapDiagnosticService.java

@@ -247,6 +247,7 @@ public class RapDiagnosticService extends Service {
                     Thread.sleep(3000);
                     continue;
                 }
+                recoverSavedUserId(prefs);
                 releaseStaleBackgroundOperations(System.currentTimeMillis());
                 lastHeartbeatAt = System.currentTimeMillis();
                 serviceState = "online " + new SimpleDateFormat("HH:mm:ss").format(new Date());
@@ -775,6 +776,7 @@ public class RapDiagnosticService extends Service {
         if (APP_VERSION.equals(lastVersion)) {
             return;
         }
+        recoverSavedUserId(prefs);
         String connectionId = prefs.getString(PREF_VPN_CONNECTION_ID, "");
         String profileJson = prefs.getString(PREF_PROFILE_JSON, "");
         if (connectionId.isEmpty() || profileJson.isEmpty()) {
@@ -804,6 +806,17 @@ public class RapDiagnosticService extends Service {
         }
     }
 
+    private void recoverSavedUserId(SharedPreferences prefs) {
+        if (prefs == null || !prefs.getString(PREF_USER_ID, "").trim().isEmpty()) {
+            return;
+        }
+        String savedUserId = savedUserIdForProfileRefresh(prefs);
+        if (savedUserId == null || savedUserId.trim().isEmpty()) {
+            return;
+        }
+        prefs.edit().putString(PREF_USER_ID, savedUserId.trim()).apply();
+    }
+
     private String refreshProfile() {
         SharedPreferences prefs = getSharedPreferences(PREFS, MODE_PRIVATE);
         try {