feat: enhance versioning and avatar handling with dynamic properties and improved UI interactions

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

@@ -39,6 +39,7 @@ import com.rosetta.messenger.ui.auth.AccountInfo
 import com.rosetta.messenger.ui.auth.AuthFlow
 import com.rosetta.messenger.ui.chats.ChatDetailScreen
 import com.rosetta.messenger.ui.chats.ChatsListScreen
+import com.rosetta.messenger.ui.chats.RequestsListScreen
 import com.rosetta.messenger.ui.chats.SearchScreen
 import com.rosetta.messenger.ui.components.OptimizedEmojiCache
 import com.rosetta.messenger.ui.components.SwipeBackContainer
@@ -484,6 +485,7 @@ class MainActivity : FragmentActivity() {
  */
 sealed class Screen {
     data object Profile : Screen()
+    data object Requests : Screen()
     data object Search : Screen()
     data class ChatDetail(val user: SearchUser) : Screen()
     data class OtherProfile(val user: SearchUser) : Screen()
@@ -564,6 +566,7 @@ fun MainScreen(
 
     // Derived visibility — only triggers recomposition when THIS screen changes
     val isProfileVisible by remember { derivedStateOf { navStack.any { it is Screen.Profile } } }
+    val isRequestsVisible by remember { derivedStateOf { navStack.any { it is Screen.Requests } } }
     val isSearchVisible by remember { derivedStateOf { navStack.any { it is Screen.Search } } }
     val chatDetailScreen by remember {
         derivedStateOf { navStack.filterIsInstance<Screen.ChatDetail>().lastOrNull() }
@@ -616,6 +619,8 @@ fun MainScreen(
     val profileViewModel: com.rosetta.messenger.ui.settings.ProfileViewModel =
             androidx.lifecycle.viewmodel.compose.viewModel()
     val profileState by profileViewModel.state.collectAsState()
+    val chatsListViewModel: com.rosetta.messenger.ui.chats.ChatsListViewModel =
+            androidx.lifecycle.viewmodel.compose.viewModel()
 
     // Appearance: background blur color preference
     val prefsManager = remember { com.rosetta.messenger.data.PreferencesManager(context) }
@@ -682,6 +687,7 @@ fun MainScreen(
                     // TODO: Share invite link
                 },
                 onSearchClick = { pushScreen(Screen.Search) },
+                onRequestsClick = { pushScreen(Screen.Requests) },
                 onNewChat = {
                     // TODO: Show new chat screen
                 },
@@ -693,10 +699,29 @@ fun MainScreen(
                 onTogglePin = { opponentKey ->
                     mainScreenScope.launch { prefsManager.togglePinChat(opponentKey) }
                 },
+                chatsViewModel = chatsListViewModel,
                 avatarRepository = avatarRepository,
                 onLogout = onLogout
         )
 
+        SwipeBackContainer(
+                isVisible = isRequestsVisible,
+                onBack = { navStack = navStack.filterNot { it is Screen.Requests } },
+                isDarkTheme = isDarkTheme
+        ) {
+                RequestsListScreen(
+                        isDarkTheme = isDarkTheme,
+                        chatsViewModel = chatsListViewModel,
+                        onBack = { navStack = navStack.filterNot { it is Screen.Requests } },
+                        onUserSelect = { selectedRequestUser ->
+                                navStack =
+                                        navStack.filterNot {
+                                                it is Screen.Requests || it is Screen.ChatDetail
+                                        } + Screen.ChatDetail(selectedRequestUser)
+                        }
+                )
+        }
+
         // ═══════════════════════════════════════════════════════════
         // Profile Screen — MUST be before sub-screens so it stays
         // visible beneath them during swipe-back animation