android: keep session authenticated on startup when offline

android/CHANGELOG.md

@@ -343,3 +343,7 @@
 - Added paged local history reading path by introducing configurable message observe limit (`observeMessages(chatId, limit)`).
 - Updated chat screen loading strategy to expand local Room-backed history first when loading older messages.
 - Added network-failure fallback in message sync/load-more: if network is unavailable but local cache exists, chat remains readable without blocking error.
+
+### Step 58 - Keep authenticated session when offline at app start
+- Updated auth restore flow in `AuthViewModel`: network errors during session restore no longer force logout when local tokens exist.
+- App now opens authenticated flow in offline mode instead of redirecting to login.

android/app/src/main/java/ru/daemonlord/messenger/ui/auth/AuthViewModel.kt

@@ -101,10 +101,11 @@ class AuthViewModel @Inject constructor(
                 }
 
                 is AppResult.Error -> {
+                    val keepAuthenticatedOffline = result.reason is AppError.Network
                     _uiState.update {
                         it.copy(
                             isCheckingSession = false,
-                            isAuthenticated = false,
+                            isAuthenticated = keepAuthenticatedOffline,
                             errorMessage = null,
                         )
                     }