Nip17 dms to extend the mesh (#313)

* favorite each other

* show favorites as system messsages

* wip show glove when offline but mayb edoesnt work

* send and receive works

* wip kinda works but no

* getting there

* kinda

* show offline peers in peer list

* kinda wonky but almost works

* fixes

* nostr user goes offline works

* nostr -> mesh works

* handoff works

* background message processing

* read works

* seen message store was missing

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

@@ -13,5 +13,15 @@ class BitchatApplication : Application() {
         
         // Initialize relay directory (loads assets/nostr_relays.csv)
         RelayDirectory.initialize(this)
+
+        // Initialize favorites persistence early so MessageRouter/NostrTransport can use it on startup
+        try {
+            com.bitchat.android.favorites.FavoritesPersistenceService.initialize(this)
+        } catch (_: Exception) { }
+
+        // Warm up Nostr identity to ensure npub is available for favorite notifications
+        try {
+            com.bitchat.android.nostr.NostrIdentityBridge.getCurrentNostrIdentity(this)
+        } catch (_: Exception) { }
     }
 }