Background persistence (#505)

* persistence step 1

* fix build

* messages in the background work, notifications not yet

* app state store

* DM icon shows up

* notification launches when app is closed!

* keep ui updated

* lifecycle fixes

* extensive logging, maybe revert later

* send nickname in announcement

* quit in notification

* setting in about sheet

* fix quit bitchat

* lifecycle fixes

* power mode based on background state

* stats for both direciotns

* fix graph persistence

* better counting

* count per device

* only compute when debug sheet is open? untested

* fix read receipts

* fix read receipts fully

* fix unread badge if messages have been read in focus

* foreground promotion fix

* fix app kill in notification

* adjust to new tor

* nice

* about sheet design

app/src/main/java/com/bitchat/android/BitchatApplication.kt

@@ -41,6 +41,12 @@ class BitchatApplication : Application() {
         // Initialize debug preference manager (persists debug toggles)
         try { com.bitchat.android.ui.debug.DebugPreferenceManager.init(this) } catch (_: Exception) { }
 
+        // Initialize mesh service preferences
+        try { com.bitchat.android.service.MeshServicePreferences.init(this) } catch (_: Exception) { }
+
+        // Proactively start the foreground service to keep mesh alive
+        try { com.bitchat.android.service.MeshForegroundService.start(this) } catch (_: Exception) { }
+
         // TorManager already initialized above
     }
 }