feat: Implement account info update handling in MainScreen for reactive UI updates

app/src/main/java/com/rosetta/messenger/MainActivity.kt

@@ -306,6 +306,37 @@ class MainActivity : ComponentActivity() {
                                                         .disconnect()
                                                 accountManager.logout()
                                             }
+                                        },
+                                        onAccountInfoUpdated = {
+                                            // Reload account list when profile is updated
+                                            val accounts = accountManager.getAllAccounts()
+                                            accountInfoList =
+                                                    accounts.map { acc ->
+                                                        val shortKey = acc.publicKey.take(7)
+                                                        val displayName = acc.name ?: shortKey
+                                                        val initials =
+                                                                displayName
+                                                                        .trim()
+                                                                        .split(Regex("\\s+"))
+                                                                        .filter { it.isNotEmpty() }
+                                                                        .let { words ->
+                                                                            when {
+                                                                                words.isEmpty() -> "??"
+                                                                                words.size == 1 ->
+                                                                                        words[0]
+                                                                                                .take(2)
+                                                                                                .uppercase()
+                                                                                else ->
+                                                                                        "${words[0].first()}${words[1].first()}".uppercase()
+                                                                            }
+                                                                        }
+                                                        AccountInfo(
+                                                                id = acc.publicKey,
+                                                                name = displayName,
+                                                                initials = initials,
+                                                                publicKey = acc.publicKey
+                                                        )
+                                                    }
                                         }
                                 )
                             }
@@ -426,7 +457,8 @@ fun MainScreen(
         account: DecryptedAccount? = null,
         isDarkTheme: Boolean = true,
         onToggleTheme: () -> Unit = {},
-        onLogout: () -> Unit = {}
+        onLogout: () -> Unit = {},
+        onAccountInfoUpdated: suspend () -> Unit = {}
 ) {
     // Reactive state for account name and username
     var accountName by remember { mutableStateOf(account?.name ?: "Account") }
@@ -476,6 +508,9 @@ fun MainScreen(
     // ProfileViewModel для логов
     val profileViewModel: com.rosetta.messenger.ui.settings.ProfileViewModel = androidx.lifecycle.viewmodel.compose.viewModel()
     val profileState by profileViewModel.state.collectAsState()
+    
+    // Coroutine scope for profile updates
+    val mainScreenScope = rememberCoroutineScope()
 
     // 🔥 Простая навигация с fade-in анимацией
     Box(modifier = Modifier.fillMaxSize()) {
@@ -716,8 +751,10 @@ fun MainScreen(
                             // 3. This callback updates UI state immediately
                             accountName = name
                             accountUsername = username
-                            // Don't reload from DB immediately - it's async and may not be ready yet
-                            // The values are already updated above and DB is updated in ProfileScreen
+                            // Reload account list so auth screen shows updated name
+                            mainScreenScope.launch {
+                                onAccountInfoUpdated()
+                            }
                             Log.d("MainActivity", "Profile saved: name=$name, username=$username, UI updated")
                         },
                         onLogout = onLogout,