feat: Update ChatDetailScreen and ChatsListScreen for improved UI responsiveness and consistency; add custom verified badge icon

app/src/main/AndroidManifest.xml

@@ -7,6 +7,7 @@
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.USE_BIOMETRIC" />
     <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="32" />
     <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" tools:ignore="ScopedStorage" />
     <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />

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

@@ -3,6 +3,7 @@ package com.rosetta.messenger
 import android.app.Application
 import com.airbnb.lottie.L
 import com.rosetta.messenger.data.DraftManager
+import com.rosetta.messenger.update.UpdateManager
 import com.rosetta.messenger.utils.CrashReportManager
 
 /**
@@ -26,6 +27,9 @@ class RosettaApplication : Application() {
         // Инициализируем менеджер черновиков
         DraftManager.init(this)
         
+        // Инициализируем менеджер обновлений (SDU)
+        UpdateManager.init()
+        
     }
     
     /**

app/src/main/java/com/rosetta/messenger/network/PacketRequestUpdate.kt

@@ -0,0 +1,23 @@
+package com.rosetta.messenger.network
+
+/**
+ * Request Update packet (ID: 0x0A)
+ * Запрос адреса SDU сервера обновлений с основного сервера.
+ * Клиент отправляет пакет с пустым updateServer, сервер отвечает тем же пакетом с URL SDU.
+ */
+class PacketRequestUpdate : Packet() {
+    var updateServer: String = ""
+
+    override fun getPacketId(): Int = 0x0A
+
+    override fun receive(stream: Stream) {
+        updateServer = stream.readString()
+    }
+
+    override fun send(): Stream {
+        val stream = Stream()
+        stream.writeInt16(getPacketId())
+        stream.writeString(updateServer)
+        return stream
+    }
+}

app/src/main/java/com/rosetta/messenger/network/Protocol.kt

@@ -124,6 +124,7 @@ class Protocol(
         0x07 to { PacketRead() },
         0x08 to { PacketDelivery() },
         0x09 to { PacketDeviceNew() },
+        0x0A to { PacketRequestUpdate() },
         0x0B to { PacketTyping() },
         0x0F to { PacketRequestTransport() },
         0x17 to { PacketDeviceList() },

app/src/main/java/com/rosetta/messenger/network/ProtocolManager.kt

@@ -369,6 +369,7 @@ object ProtocolManager {
     private fun onAuthenticated() {
         setSyncInProgress(false)
         TransportManager.requestTransportServer()
+        com.rosetta.messenger.update.UpdateManager.requestSduServer()
         fetchOwnProfile()
         requestSynchronize()
         subscribePushTokenIfAvailable()

app/src/main/java/com/rosetta/messenger/ui/chats/ChatDetailScreen.kt

@@ -58,6 +58,7 @@ import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.platform.LocalLifecycleOwner
 import androidx.compose.ui.platform.LocalSoftwareKeyboardController
 import androidx.compose.ui.platform.LocalView
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
@@ -142,7 +143,7 @@ fun ChatDetailScreen(
         val backgroundColor = if (isDarkTheme) Color(0xFF1A1A1A) else Color(0xFFF2F2F7)
         val textColor = if (isDarkTheme) Color.White else Color.Black
         val secondaryTextColor = if (isDarkTheme) Color(0xFF8E8E93) else Color(0xFF8E8E93)
-        val headerIconColor = if (isDarkTheme) Color(0xFF0A84FF) else Color(0xFF007AFF)
+        val headerIconColor = Color.White
 
         // 🔥 Keyboard & Emoji Coordinator
         val coordinator = remember { KeyboardTransitionCoordinator() }
@@ -232,7 +233,7 @@ fun ChatDetailScreen(
                                 if (window != null && view != null) {
                                         val ic = androidx.core.view.WindowCompat.getInsetsController(window, view)
                                         window.statusBarColor = android.graphics.Color.TRANSPARENT
-                                        ic.isAppearanceLightStatusBars = !isDarkTheme
+                                        ic.isAppearanceLightStatusBars = false
                                 }
                         }
                 }
@@ -659,7 +660,7 @@ fun ChatDetailScreen(
         // 🚀 Весь контент (swipe-back обрабатывается в SwipeBackContainer)
         Box(modifier = Modifier.fillMaxSize()) {
                 // Telegram-style solid header background (без blur)
-                val headerBackground = if (isDarkTheme) Color(0xFF212121) else Color(0xFFFFFFFF)
+                val headerBackground = if (isDarkTheme) Color(0xFF2A2A2A) else Color(0xFF228BE6)
 
                 Scaffold(
                         contentWindowInsets = WindowInsets(0.dp),
@@ -669,13 +670,7 @@ fun ChatDetailScreen(
                                 Box(
                                         modifier =
                                                 Modifier.fillMaxWidth()
-                                                        .background(
+                                                        .background(headerBackground)
-                                                                if (isSelectionMode) {
-                                                                        if (isDarkTheme)
-                                                                                Color(0xFF212121)
-                                                                        else Color.White
-                                                                } else headerBackground
-                                                        )
                                                         // 🎨 statusBarsPadding ПОСЛЕ background =
                                                         // хедер начинается под статус баром
                                                         .statusBarsPadding()
@@ -737,12 +732,7 @@ fun ChatDetailScreen(
                                                                                 fontWeight =
                                                                                         FontWeight
                                                                                                 .Bold,
-                                                                                color =
+                                                                                color = Color.White
-                                                                                        if (isDarkTheme
-                                                                                        )
-                                                                                                Color.White
-                                                                                        else
-                                                                                                Color.Black
                                                                         )
                                                                 }
 
@@ -880,14 +870,7 @@ fun ChatDetailScreen(
                                                                                         imageVector = TablerIcons.ChevronLeft,
                                                                                         contentDescription =
                                                                                                 "Back",
-                                                                                        tint =
+                                                                                        tint = Color.White,
-                                                                                                if (isDarkTheme
-                                                                                                )
-                                                                                                        Color.White
-                                                                                                else
-                                                                                                        Color(
-                                                                                                                0xFF007AFF
-                                                                                                        ),
                                                                                         modifier =
                                                                                                 Modifier.size(
                                                                                                         28.dp
@@ -1007,15 +990,14 @@ fun ChatDetailScreen(
                                                                                                                 CircleShape
                                                                                                         )
                                                                                                         .background(
-                                                                                                                PrimaryBlue
+                                                                                                                Color(0xFF228BE6)
                                                                                                         ),
                                                                                         contentAlignment =
                                                                                                 Alignment
                                                                                                         .Center
                                                                                 ) {
                                                                                         Icon(
-                                                                                                Icons.Default
+                                                                                                painter = painterResource(R.drawable.bookmark_outlined),
-                                                                                                        .Bookmark,
                                                                                                 contentDescription =
                                                                                                         null,
                                                                                                 tint =
@@ -1102,7 +1084,7 @@ fun ChatDetailScreen(
                                                                                                 FontWeight
                                                                                                         .SemiBold,
                                                                                         color =
-                                                                                                textColor,
+                                                                                                Color.White,
                                                                                         maxLines =
                                                                                                 1,
                                                                                         overflow =
@@ -1125,7 +1107,8 @@ fun ChatDetailScreen(
                                                                                                 size =
                                                                                                         16,
                                                                                                 isDarkTheme =
-                                                                                                        isDarkTheme
+                                                                                                        isDarkTheme,
+                                                                                                badgeTint = if (isDarkTheme) null else Color(0xFFACD2F9)
                                                                                         )
                                                                                 }
                                                                                 // 🔇 Mute icon
@@ -1135,7 +1118,7 @@ fun ChatDetailScreen(
                                                                                                 painter = TelegramIcons.Mute,
                                                                                                 contentDescription = "Muted",
                                                                                                 modifier = Modifier.size(16.dp),
-                                                                                                tint = secondaryTextColor
+                                                                                                tint = Color.White.copy(alpha = 0.7f)
                                                                                         )
                                                                                 }
                                                                         }
@@ -1155,13 +1138,13 @@ fun ChatDetailScreen(
                                                                                         color =
                                                                                                 when {
                                                                                                         isSavedMessages ->
-                                                                                                                secondaryTextColor
+                                                                                                                Color.White.copy(alpha = 0.7f)
                                                                                                         isOnline ->
                                                                                                                 Color(
-                                                                                                                        0xFF38B24D
+                                                                                                                        0xFF7FE084
-                                                                                                                ) // Зелёный когда онлайн
+                                                                                                                ) // Зелёный когда онлайн (светлый на синем фоне)
                                                                                                         else ->
-                                                                                                                secondaryTextColor // Серый
+                                                                                                                Color.White.copy(alpha = 0.7f) // Белый полупрозрачный
                                                                                                 // для
                                                                                                 // offline
                                                                                                 },
@@ -1182,14 +1165,7 @@ fun ChatDetailScreen(
                                                                                                 .Call,
                                                                                         contentDescription =
                                                                                                 "Call",
-                                                                                        tint =
+                                                                                        tint = Color.White
-                                                                                                if (isDarkTheme
-                                                                                                )
-                                                                                                        Color.White
-                                                                                                else
-                                                                                                        Color(
-                                                                                                                0xFF007AFF
-                                                                                                        )
                                                                                 )
                                                                         }
                                                                 }
@@ -1221,14 +1197,7 @@ fun ChatDetailScreen(
                                                                                                 .MoreVert,
                                                                                         contentDescription =
                                                                                                 "More",
-                                                                                        tint =
+                                                                                        tint = Color.White,
-                                                                                                if (isDarkTheme
-                                                                                                )
-                                                                                                        Color.White
-                                                                                                else
-                                                                                                        Color(
-                                                                                                                0xFF007AFF
-                                                                                                        ),
                                                                                         modifier =
                                                                                                 Modifier.size(
                                                                                                         26.dp
@@ -1287,15 +1256,7 @@ fun ChatDetailScreen(
                                                                 .fillMaxWidth()
                                                                 .height(0.5.dp)
                                                                 .background(
-                                                                        if (isDarkTheme)
+                                                                        Color.White.copy(alpha = 0.15f)
-                                                                                Color.White.copy(
-                                                                                        alpha =
-                                                                                                0.15f
-                                                                                )
-                                                                        else
-                                                                                Color.Black.copy(
-                                                                                        alpha = 0.1f
-                                                                                )
                                                                 )
                                         )
                                 } // Закрытие Box unified header

app/src/main/java/com/rosetta/messenger/ui/chats/ChatsListScreen.kt

@@ -73,6 +73,8 @@ import com.rosetta.messenger.ui.components.AvatarImage
 import com.rosetta.messenger.ui.components.VerifiedBadge
 import com.rosetta.messenger.ui.onboarding.PrimaryBlue
 import com.rosetta.messenger.ui.onboarding.PrimaryBlueDark
+import com.rosetta.messenger.update.UpdateManager
+import com.rosetta.messenger.update.UpdateState
 import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.graphics.painter.Painter
@@ -245,6 +247,10 @@ fun ChatsListScreen(
         val focusManager = androidx.compose.ui.platform.LocalFocusManager.current
         val drawerState = rememberDrawerState(initialValue = DrawerValue.Closed)
         val scope = rememberCoroutineScope()
+        val sduUpdateState by UpdateManager.updateState.collectAsState()
+        val sduDownloadProgress by UpdateManager.downloadProgress.collectAsState()
+        val sduDebugLogs by UpdateManager.debugLogs.collectAsState()
+        var showSduLogs by remember { mutableStateOf(false) }
         val themeRevealRadius = remember { Animatable(0f) }
         var rootSize by remember { mutableStateOf(IntSize.Zero) }
         var themeToggleCenterInRoot by remember { mutableStateOf<Offset?>(null) }
@@ -253,6 +259,73 @@ fun ChatsListScreen(
         var themeRevealCenter by remember { mutableStateOf(Offset.Zero) }
         var themeRevealSnapshot by remember { mutableStateOf<ImageBitmap?>(null) }
 
+        // ═══════════════ SDU Debug Log Dialog ═══════════════
+        if (showSduLogs) {
+                AlertDialog(
+                        onDismissRequest = { showSduLogs = false },
+                        title = {
+                                Row(verticalAlignment = Alignment.CenterVertically) {
+                                        Text("SDU Logs", fontWeight = FontWeight.Bold, fontSize = 16.sp)
+                                        Spacer(modifier = Modifier.weight(1f))
+                                        Text(
+                                                "state: ${sduUpdateState::class.simpleName}",
+                                                fontSize = 11.sp,
+                                                color = Color.Gray
+                                        )
+                                }
+                        },
+                        text = {
+                                val scrollState = rememberScrollState()
+                                LaunchedEffect(sduDebugLogs.size) {
+                                        scrollState.animateScrollTo(scrollState.maxValue)
+                                }
+                                Column(
+                                        modifier = Modifier
+                                                .fillMaxWidth()
+                                                .heightIn(max = 400.dp)
+                                                .verticalScroll(scrollState)
+                                ) {
+                                        if (sduDebugLogs.isEmpty()) {
+                                                Text(
+                                                        "Нет логов. SDU ещё не инициализирован\nили пакет 0x0A не пришёл.",
+                                                        fontSize = 13.sp,
+                                                        color = Color.Gray
+                                                )
+                                        } else {
+                                                sduDebugLogs.forEach { line ->
+                                                        Text(
+                                                                text = line,
+                                                                fontSize = 11.sp,
+                                                                fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace,
+                                                                color = when {
+                                                                        "ERROR" in line || "EXCEPTION" in line -> Color(0xFFFF5555)
+                                                                        "WARNING" in line -> Color(0xFFFFAA33)
+                                                                        "State ->" in line -> Color(0xFF55BB55)
+                                                                        else -> if (isDarkTheme) Color(0xFFCCCCCC) else Color(0xFF333333)
+                                                                },
+                                                                modifier = Modifier.padding(vertical = 1.dp)
+                                                        )
+                                                }
+                                        }
+                                }
+                        },
+                        confirmButton = {
+                                Row {
+                                        TextButton(onClick = {
+                                                // Retry: force re-request SDU
+                                                UpdateManager.requestSduServer()
+                                        }) {
+                                                Text("Retry SDU")
+                                        }
+                                        Spacer(modifier = Modifier.width(8.dp))
+                                        TextButton(onClick = { showSduLogs = false }) {
+                                                Text("Close")
+                                        }
+                                }
+                        }
+                )
+        }
+
         fun startThemeReveal() {
                 if (themeRevealActive) {
                         return
@@ -801,7 +874,7 @@ fun ChatsListScreen(
                                                                                                         VerifiedBadge(
                                                                                                                 verified = 1,
                                                                                                                 size = 15,
-                                                                                                                badgeTint = Color.White
+                                                                                                                badgeTint = Color(0xFFACD2F9)
                                                                                                         )
                                                                                                 }
                                                                                         }
@@ -1078,9 +1151,15 @@ fun ChatsListScreen(
                                                 }
 
                                                 // ═══════════════════════════════════════════════════════════
-                                                // FOOTER - Version
+                                                // FOOTER - Version + Update Banner
                                                 // ═══════════════════════════════════════════════════════════
-                                                Column(modifier = Modifier.fillMaxWidth()) {
+                                                Column(modifier = Modifier.fillMaxWidth().navigationBarsPadding()) {
+                                                        // Telegram-style update banner
+                                                        val curUpdate = sduUpdateState
+                                                        val showUpdateBanner = curUpdate is UpdateState.UpdateAvailable ||
+                                                                curUpdate is UpdateState.Downloading ||
+                                                                curUpdate is UpdateState.ReadyToInstall
+
                                                         Divider(
                                                                 color =
                                                                         if (isDarkTheme)
@@ -1089,29 +1168,137 @@ fun ChatsListScreen(
                                                                 thickness = 0.5.dp
                                                         )
 
-                                                        // Version info
+                                                        // Version info — прячем когда есть баннер обновления
-                                                        Box(
+                                                        if (!showUpdateBanner) {
-                                                                modifier =
+                                                                Row(
-                                                                        Modifier.fillMaxWidth()
+                                                                        modifier =
-                                                                                .padding(
+                                                                                Modifier.fillMaxWidth()
-                                                                                        horizontal = 20.dp,
+                                                                                        .padding(
-                                                                                        vertical = 12.dp
+                                                                                                horizontal = 20.dp,
-                                                                                ),
+                                                                                                vertical = 12.dp
-                                                                contentAlignment =
+                                                                                        ),
-                                                                        Alignment.CenterStart
+                                                                        verticalAlignment = Alignment.CenterVertically
-                                                        ) {
+                                                                ) {
-                                                                Text(
+                                                                        Text(
-                                                                        text = "Rosetta v${BuildConfig.VERSION_NAME}",
+                                                                                text = "Rosetta v${BuildConfig.VERSION_NAME}",
-                                                                        fontSize = 12.sp,
+                                                                                fontSize = 12.sp,
-                                                                        color =
+                                                                                color =
-                                                                                if (isDarkTheme)
+                                                                                        if (isDarkTheme)
-                                                                                        Color(0xFF666666)
+                                                                                                Color(0xFF666666)
-                                                                                else
+                                                                                        else
-                                                                                        Color(0xFF999999)
+                                                                                                Color(0xFF999999)
-                                                                )
+                                                                        )
+                                                                        Spacer(modifier = Modifier.width(4.dp))
+                                                                        Text(
+                                                                                text = "(статус: ${sduUpdateState::class.simpleName})",
+                                                                                fontSize = 10.sp,
+                                                                                color =
+                                                                                        if (isDarkTheme)
+                                                                                                Color(0xFF555555)
+                                                                                        else
+                                                                                                Color(0xFFAAAAAA)
+                                                                        )
+                                                                        Spacer(modifier = Modifier.weight(1f))
+                                                                        // Debug log button
+                                                                        Box(
+                                                                                modifier = Modifier
+                                                                                        .size(28.dp)
+                                                                                        .clip(CircleShape)
+                                                                                        .background(
+                                                                                                if (isDarkTheme) Color(0xFF2A2A2A) else Color(0xFFEEEEEE)
+                                                                                        )
+                                                                                        .clickable { showSduLogs = true },
+                                                                                contentAlignment = Alignment.Center
+                                                                        ) {
+                                                                                Icon(
+                                                                                        imageVector = TablerIcons.Bug,
+                                                                                        contentDescription = "SDU Logs",
+                                                                                        modifier = Modifier.size(16.dp),
+                                                                                        tint = if (isDarkTheme) Color(0xFF888888) else Color(0xFF999999)
+                                                                                )
+                                                                        }
+                                                                }
+                                                                Spacer(modifier = Modifier.height(16.dp))
                                                         }
 
-                                                        Spacer(modifier = Modifier.height(16.dp))
+                                                        if (showUpdateBanner) {
+                                                                Box(
+                                                                        modifier = Modifier
+                                                                                .fillMaxWidth()
+                                                                                .height(50.dp)
+                                                                                .background(
+                                                                                        Brush.horizontalGradient(
+                                                                                                colors = listOf(
+                                                                                                        Color(0xFF69BF72),
+                                                                                                        Color(0xFF53B3AD)
+                                                                                                )
+                                                                                        )
+                                                                                )
+                                                                                .clickable {
+                                                                                        when (curUpdate) {
+                                                                                                is UpdateState.UpdateAvailable ->
+                                                                                                        UpdateManager.downloadAndInstall(context)
+                                                                                                is UpdateState.Downloading ->
+                                                                                                        UpdateManager.cancelDownload()
+                                                                                                is UpdateState.ReadyToInstall ->
+                                                                                                        UpdateManager.downloadAndInstall(context)
+                                                                                                else -> {}
+                                                                                        }
+                                                                                },
+                                                                        contentAlignment = Alignment.CenterStart
+                                                                ) {
+                                                                        Row(
+                                                                                modifier = Modifier
+                                                                                        .fillMaxWidth()
+                                                                                        .padding(horizontal = 16.dp),
+                                                                                verticalAlignment = Alignment.CenterVertically
+                                                                        ) {
+                                                                                Icon(
+                                                                                        imageVector = when (curUpdate) {
+                                                                                                is UpdateState.Downloading -> TablerIcons.X
+                                                                                                else -> TablerIcons.Download
+                                                                                        },
+                                                                                        contentDescription = null,
+                                                                                        tint = Color.White,
+                                                                                        modifier = Modifier.size(22.dp)
+                                                                                )
+                                                                                Spacer(modifier = Modifier.width(12.dp))
+                                                                                Text(
+                                                                                        text = when (curUpdate) {
+                                                                                                is UpdateState.Downloading ->
+                                                                                                        "Downloading... ${curUpdate.progress}%"
+                                                                                                is UpdateState.ReadyToInstall ->
+                                                                                                        "Install Update"
+                                                                                                is UpdateState.UpdateAvailable ->
+                                                                                                        "Update Rosetta"
+                                                                                                else -> ""
+                                                                                        },
+                                                                                        color = Color.White,
+                                                                                        fontSize = 15.sp,
+                                                                                        fontWeight = FontWeight.Bold,
+                                                                                        modifier = Modifier.weight(1f)
+                                                                                )
+                                                                                if (curUpdate is UpdateState.UpdateAvailable) {
+                                                                                        Text(
+                                                                                                text = curUpdate.version,
+                                                                                                color = Color.White.copy(alpha = 0.8f),
+                                                                                                fontSize = 13.sp,
+                                                                                                fontWeight = FontWeight.Medium
+                                                                                        )
+                                                                                }
+                                                                                if (curUpdate is UpdateState.Downloading) {
+                                                                                        CircularProgressIndicator(
+                                                                                                progress = curUpdate.progress / 100f,
+                                                                                                modifier = Modifier.size(20.dp),
+                                                                                                color = Color.White,
+                                                                                                trackColor = Color.White.copy(alpha = 0.3f),
+                                                                                                strokeWidth = 2.dp
+                                                                                        )
+                                                                                }
+                                                                        }
+                                                                }
+                                                                Spacer(modifier = Modifier.height(12.dp))
+                                                        }
                                                 }
                                         }
                                 }
@@ -1757,7 +1944,10 @@ fun ChatsListScreen(
                                                                 state = chatListState,
                                                                 modifier =
                                                                         Modifier.fillMaxSize()
-                                                                                .nestedScroll(requestsNestedScroll)
+                                                                                .then(
+                                                                                        if (requestsCount > 0) Modifier.nestedScroll(requestsNestedScroll)
+                                                                                        else Modifier
+                                                                                )
                                                                                 .background(
                                                                                         listBackgroundColor
                                                                                 )
@@ -3384,7 +3574,7 @@ fun DialogItemContent(
                                         modifier =
                                                 Modifier.fillMaxSize()
                                                         .clip(CircleShape)
-                                                        .background(PrimaryBlue),
+                                                        .background(Color(0xFF228BE6)),
                                         contentAlignment = Alignment.Center
                                 ) {
                                         Icon(

app/src/main/java/com/rosetta/messenger/ui/chats/ForwardChatPickerBottomSheet.kt

@@ -347,7 +347,7 @@ private fun ForwardDialogItem(
                     modifier = Modifier
                             .size(48.dp)
                             .clip(CircleShape)
-                            .background(PrimaryBlue),
+                            .background(Color(0xFF228BE6)),
                     contentAlignment = Alignment.Center
             ) {
                 Icon(

app/src/main/java/com/rosetta/messenger/ui/chats/SearchResultsList.kt

@@ -18,11 +18,13 @@ import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.airbnb.lottie.compose.*
 import com.airbnb.lottie.LottieComposition
 import com.rosetta.messenger.network.SearchUser
+import com.rosetta.messenger.R
 import com.rosetta.messenger.ui.components.VerifiedBadge
 import com.rosetta.messenger.ui.onboarding.PrimaryBlue
 
@@ -182,12 +184,12 @@ private fun SearchResultItem(
                     modifier = Modifier
                             .size(48.dp)
                             .clip(CircleShape)
-                            .background(if (isOwnAccount) PrimaryBlue else avatarColors.backgroundColor),
+                            .background(if (isOwnAccount) Color(0xFF228BE6) else avatarColors.backgroundColor),
                     contentAlignment = Alignment.Center
             ) {
                 if (isOwnAccount) {
                     Icon(
-                            Icons.Default.Bookmark,
+                            painter = painterResource(R.drawable.bookmark_outlined),
                             contentDescription = "Saved Messages",
                             tint = Color.White,
                             modifier = Modifier.size(20.dp)

app/src/main/java/com/rosetta/messenger/ui/chats/SearchScreen.kt

@@ -30,6 +30,7 @@ import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.platform.LocalView
 import com.rosetta.messenger.repository.AvatarRepository
 import com.rosetta.messenger.ui.components.AvatarImage
+import com.rosetta.messenger.ui.components.VerifiedBadge
 import com.rosetta.messenger.database.RosettaDatabase
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
@@ -438,11 +439,9 @@ private fun RecentUserItem(
                 )
                 if (user.verified != 0) {
                     Spacer(modifier = Modifier.width(4.dp))
-                    Icon(
+                    VerifiedBadge(
-                            Icons.Default.Verified,
+                            verified = user.verified,
-                            contentDescription = "Verified",
+                            size = 16
-                            tint = PrimaryBlue,
-                            modifier = Modifier.size(16.dp)
                     )
                 }
             }

app/src/main/java/com/rosetta/messenger/ui/components/VerifiedBadge.kt

@@ -4,16 +4,17 @@ import androidx.compose.foundation.clickable
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Verified
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.compose.ui.window.Dialog
+import com.rosetta.messenger.R
+import com.rosetta.messenger.ui.onboarding.PrimaryBlue
 
 /**
  * Значок верификации пользователя
@@ -35,14 +36,9 @@ fun VerifiedBadge(
     
     var showDialog by remember { mutableStateOf(false) }
     
-    // Цвет в зависимости от уровня верификации
+    // Цвет верификации: в тёмной теме — как индикаторы прочтения (PrimaryBlue), в светлой — #ACD2F9
     val badgeColor =
-        badgeTint
+        badgeTint ?: if (isDarkTheme) PrimaryBlue else Color(0xFFACD2F9)
-            ?: when (verified) {
-                1 -> Color(0xFF1DA1F2) // Стандартная верификация (синий как в Twitter/Telegram)
-                2 -> Color(0xFFFFD700) // Золотая верификация
-                else -> Color(0xFF4CAF50) // Зеленая для других уровней
-            }
     
     // Текст аннотации
     val annotationText = when (verified) {
@@ -52,7 +48,7 @@ fun VerifiedBadge(
     }
     
     Icon(
-        Icons.Default.Verified,
+        painter = painterResource(id = R.drawable.ic_rosette_discount_check),
         contentDescription = "Verified",
         tint = badgeColor,
         modifier = modifier
@@ -73,7 +69,7 @@ fun VerifiedBadge(
                     horizontalAlignment = Alignment.CenterHorizontally
                 ) {
                     Icon(
-                        Icons.Default.Verified,
+                        painter = painterResource(id = R.drawable.ic_rosette_discount_check),
                         contentDescription = null,
                         tint = badgeColor,
                         modifier = Modifier.size(32.dp)

app/src/main/java/com/rosetta/messenger/ui/settings/OtherProfileScreen.kt

@@ -1935,8 +1935,7 @@ private fun CollapsingOtherProfileHeader(
                     VerifiedBadge(
                             verified = if (verified > 0) verified else 1,
                             size = (nameFontSize.value * 0.8f).toInt(),
-                            isDarkTheme = isDarkTheme,
+                            isDarkTheme = isDarkTheme
-                            badgeTint = Color.White
                     )
                 }
             }

app/src/main/java/com/rosetta/messenger/ui/settings/ProfileScreen.kt

@@ -1402,8 +1402,7 @@ private fun CollapsingProfileHeader(
                     VerifiedBadge(
                             verified = 2,
                             size = (nameFontSize.value * 0.8f).toInt(),
-                            isDarkTheme = isDarkTheme,
+                            isDarkTheme = isDarkTheme
-                            badgeTint = Color.White
                     )
                 }
             }

app/src/main/java/com/rosetta/messenger/ui/settings/UpdatesScreen.kt

@@ -7,20 +7,21 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.*
-import com.rosetta.messenger.ui.icons.TelegramIcons
 import compose.icons.TablerIcons
 import compose.icons.tablericons.*
-import androidx.compose.runtime.Composable
+import androidx.compose.runtime.*
-import androidx.compose.runtime.SideEffect
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalView
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.rosetta.messenger.BuildConfig
+import com.rosetta.messenger.update.UpdateManager
+import com.rosetta.messenger.update.UpdateState
+import kotlinx.coroutines.launch
 
 @Composable
 fun UpdatesScreen(
@@ -28,6 +29,8 @@ fun UpdatesScreen(
     onBack: () -> Unit
 ) {
     val view = LocalView.current
+    val context = LocalContext.current
+
     if (!view.isInEditMode) {
         SideEffect {
             val window = (view.context as android.app.Activity).window
@@ -44,7 +47,10 @@ fun UpdatesScreen(
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val secondaryTextColor = if (isDarkTheme) Color(0xFF8E8E93) else Color(0xFF666666)
 
-    // Handle back gesture
+    val updateState by UpdateManager.updateState.collectAsState()
+    val downloadProgress by UpdateManager.downloadProgress.collectAsState()
+    val coroutineScope = rememberCoroutineScope()
+
     BackHandler { onBack() }
 
     Column(
@@ -87,29 +93,12 @@ fun UpdatesScreen(
                 .verticalScroll(rememberScrollState())
                 .padding(16.dp)
         ) {
-            // Info Card
+            // Status Card
-            Surface(
+            UpdateStatusCard(
-                modifier = Modifier.fillMaxWidth(),
+                state = updateState,
-                color = Color(0xFF2E7D32).copy(alpha = 0.2f),
+                progress = downloadProgress,
-                shape = RoundedCornerShape(12.dp)
+                secondaryTextColor = secondaryTextColor
-            ) {
+            )
-                Column(
-                    modifier = Modifier.padding(16.dp)
-                ) {
-                    Text(
-                        text = "✓ App is up to date",
-                        fontSize = 14.sp,
-                        fontWeight = FontWeight.Medium,
-                        color = Color(0xFF2E7D32)
-                    )
-                    Spacer(modifier = Modifier.height(4.dp))
-                    Text(
-                        text = "You're using the latest version",
-                        fontSize = 12.sp,
-                        color = secondaryTextColor
-                    )
-                }
-            }
 
             Spacer(modifier = Modifier.height(24.dp))
 
@@ -168,23 +157,191 @@ fun UpdatesScreen(
 
             Spacer(modifier = Modifier.height(16.dp))
 
-            // Check for updates button
+            // Action Button
-            Button(
+            when (val state = updateState) {
-                onClick = { /* TODO: Implement update check */ },
+                is UpdateState.Idle, is UpdateState.UpToDate, is UpdateState.Checking, is UpdateState.Error -> {
-                modifier = Modifier
+                    Button(
-                    .fillMaxWidth()
+                        onClick = {
-                    .height(48.dp),
+                            coroutineScope.launch {
-                colors = ButtonDefaults.buttonColors(
+                                UpdateManager.checkForUpdates()
-                    containerColor = Color(0xFF007AFF)
+                            }
-                ),
+                        },
-                shape = RoundedCornerShape(12.dp)
+                        modifier = Modifier
-            ) {
+                            .fillMaxWidth()
-                Text(
+                            .height(48.dp),
-                    text = "Check for Updates",
+                        enabled = state !is UpdateState.Checking,
-                    fontSize = 16.sp,
+                        colors = ButtonDefaults.buttonColors(
-                    fontWeight = FontWeight.Medium
+                            containerColor = Color(0xFF007AFF)
-                )
+                        ),
+                        shape = RoundedCornerShape(12.dp)
+                    ) {
+                        if (state is UpdateState.Checking) {
+                            CircularProgressIndicator(
+                                modifier = Modifier.size(20.dp),
+                                color = Color.White,
+                                strokeWidth = 2.dp
+                            )
+                            Spacer(modifier = Modifier.width(8.dp))
+                            Text("Checking...", fontSize = 16.sp, fontWeight = FontWeight.Medium)
+                        } else {
+                            Text("Check for Updates", fontSize = 16.sp, fontWeight = FontWeight.Medium)
+                        }
+                    }
+                }
+
+                is UpdateState.UpdateAvailable -> {
+                    Button(
+                        onClick = { UpdateManager.downloadAndInstall(context) },
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .height(48.dp),
+                        colors = ButtonDefaults.buttonColors(
+                            containerColor = Color(0xFF34C759)
+                        ),
+                        shape = RoundedCornerShape(12.dp)
+                    ) {
+                        Icon(
+                            imageVector = TablerIcons.Download,
+                            contentDescription = null,
+                            modifier = Modifier.size(20.dp)
+                        )
+                        Spacer(modifier = Modifier.width(8.dp))
+                        Text(
+                            "Download ${state.version}",
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Medium
+                        )
+                    }
+                }
+
+                is UpdateState.Downloading -> {
+                    Column {
+                        LinearProgressIndicator(
+                            progress = state.progress / 100f,
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .height(6.dp),
+                            color = Color(0xFF007AFF),
+                            trackColor = if (isDarkTheme) Color(0xFF3A3A3A) else Color(0xFFE0E0E0),
+                        )
+                        Spacer(modifier = Modifier.height(12.dp))
+                        Row(
+                            modifier = Modifier.fillMaxWidth(),
+                            horizontalArrangement = Arrangement.SpaceBetween
+                        ) {
+                            Text(
+                                "Downloading... ${state.progress}%",
+                                fontSize = 14.sp,
+                                color = textColor
+                            )
+                            TextButton(onClick = { UpdateManager.cancelDownload() }) {
+                                Text("Cancel", color = Color(0xFFFF3B30), fontSize = 14.sp)
+                            }
+                        }
+                    }
+                }
+
+                is UpdateState.ReadyToInstall -> {
+                    Button(
+                        onClick = {
+                            UpdateManager.downloadAndInstall(context)
+                        },
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .height(48.dp),
+                        colors = ButtonDefaults.buttonColors(
+                            containerColor = Color(0xFF34C759)
+                        ),
+                        shape = RoundedCornerShape(12.dp)
+                    ) {
+                        Text(
+                            "Install Update",
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Medium
+                        )
+                    }
+                }
             }
         }
     }
 }
+
+@Composable
+private fun UpdateStatusCard(
+    state: UpdateState,
+    progress: Int,
+    secondaryTextColor: Color
+) {
+    val (bgColor, iconColor, title, subtitle) = when (state) {
+        is UpdateState.Idle -> StatusCardData(
+            bg = Color(0xFF2E7D32).copy(alpha = 0.2f),
+            icon = Color(0xFF2E7D32),
+            title = "✓ App is up to date",
+            subtitle = "You're using the latest version"
+        )
+        is UpdateState.UpToDate -> StatusCardData(
+            bg = Color(0xFF2E7D32).copy(alpha = 0.2f),
+            icon = Color(0xFF2E7D32),
+            title = "✓ App is up to date",
+            subtitle = "You're using the latest version"
+        )
+        is UpdateState.Checking -> StatusCardData(
+            bg = Color(0xFF007AFF).copy(alpha = 0.2f),
+            icon = Color(0xFF007AFF),
+            title = "Checking for updates...",
+            subtitle = "Connecting to update server"
+        )
+        is UpdateState.UpdateAvailable -> StatusCardData(
+            bg = Color(0xFF007AFF).copy(alpha = 0.2f),
+            icon = Color(0xFF007AFF),
+            title = "Update available: ${state.version}",
+            subtitle = "A new version is ready to download"
+        )
+        is UpdateState.Downloading -> StatusCardData(
+            bg = Color(0xFF007AFF).copy(alpha = 0.2f),
+            icon = Color(0xFF007AFF),
+            title = "Downloading... $progress%",
+            subtitle = "Please wait while the update is downloading"
+        )
+        is UpdateState.ReadyToInstall -> StatusCardData(
+            bg = Color(0xFF34C759).copy(alpha = 0.2f),
+            icon = Color(0xFF34C759),
+            title = "Ready to install",
+            subtitle = "Tap the button below to install the update"
+        )
+        is UpdateState.Error -> StatusCardData(
+            bg = Color(0xFFFF3B30).copy(alpha = 0.2f),
+            icon = Color(0xFFFF3B30),
+            title = "Update check failed",
+            subtitle = state.message
+        )
+    }
+
+    Surface(
+        modifier = Modifier.fillMaxWidth(),
+        color = bgColor,
+        shape = RoundedCornerShape(12.dp)
+    ) {
+        Column(modifier = Modifier.padding(16.dp)) {
+            Text(
+                text = title,
+                fontSize = 14.sp,
+                fontWeight = FontWeight.Medium,
+                color = iconColor
+            )
+            Spacer(modifier = Modifier.height(4.dp))
+            Text(
+                text = subtitle,
+                fontSize = 12.sp,
+                color = secondaryTextColor
+            )
+        }
+    }
+}
+
+private data class StatusCardData(
+    val bg: Color,
+    val icon: Color,
+    val title: String,
+    val subtitle: String
+)

app/src/main/java/com/rosetta/messenger/update/UpdateManager.kt

@@ -0,0 +1,424 @@
+package com.rosetta.messenger.update
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Build
+import android.util.Log
+import androidx.core.content.FileProvider
+import com.rosetta.messenger.BuildConfig
+import com.rosetta.messenger.network.PacketRequestUpdate
+import com.rosetta.messenger.network.ProtocolManager
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import java.io.File
+import java.util.concurrent.TimeUnit
+
+/**
+ * Менеджер обновлений приложения через SDU (Software Distribution Unit).
+ *
+ * Аналог UpdateProvider из desktop-приложения.
+ * Поток:
+ * 1. После аутентификации отправляем PacketRequestUpdate (0x0A) для получения URL SDU сервера
+ * 2. Запрашиваем /updates/get?kernel={version}&platform=android&arch={arch} на SDU
+ * 3. Если есть обновление — показываем пользователю
+ * 4. Скачиваем APK и открываем установщик
+ */
+object UpdateManager {
+    private const val TAG = "UpdateManager"
+
+    private val scope = CoroutineScope(Dispatchers.IO + SupervisorJob())
+
+    // ═══ Debug log buffer ═══
+    private val _debugLogs = MutableStateFlow<List<String>>(emptyList())
+    val debugLogs: StateFlow<List<String>> = _debugLogs.asStateFlow()
+    private val timeFmt = SimpleDateFormat("HH:mm:ss.SSS", Locale.US)
+
+    private fun sduLog(msg: String) {
+        Log.i(TAG, msg)
+        val ts = timeFmt.format(Date())
+        val line = "[$ts] $msg"
+        _debugLogs.value = (_debugLogs.value + line).takeLast(200)
+    }
+
+    // SDU server URL, получаем от основного сервера через PacketRequestUpdate
+    @Volatile
+    private var sduServerUrl: String? = null
+
+    // Текущая версия приложения
+    val appVersion: String = BuildConfig.VERSION_NAME
+
+    // Состояния обновления
+    private val _updateState = MutableStateFlow<UpdateState>(UpdateState.Idle)
+    val updateState: StateFlow<UpdateState> = _updateState.asStateFlow()
+
+    private val _downloadProgress = MutableStateFlow(0)
+    val downloadProgress: StateFlow<Int> = _downloadProgress.asStateFlow()
+
+    // Информация о доступном обновлении
+    @Volatile
+    private var latestUpdateInfo: UpdateInfo? = null
+
+    private var downloadJob: Job? = null
+
+    private val httpClient = OkHttpClient.Builder()
+        .connectTimeout(30, TimeUnit.SECONDS)
+        .readTimeout(60, TimeUnit.SECONDS)
+        .build()
+
+    /**
+     * Инициализация: регистрируем обработчик пакета 0x0A и запрашиваем SDU сервер
+     */
+    fun init() {
+        sduLog("init() called, appVersion=$appVersion")
+        sduLog("Registering waitPacket(0x0A) listener...")
+        ProtocolManager.waitPacket(0x0A) { packet ->
+            sduLog("Received packet 0x0A, type=${packet::class.simpleName}")
+            if (packet is PacketRequestUpdate) {
+                val server = packet.updateServer
+                sduLog("PacketRequestUpdate.updateServer='$server'")
+                if (server.isNotEmpty()) {
+                    sduServerUrl = server
+                    sduLog("SDU server set: $server")
+                    scope.launch {
+                        sduLog("Auto-checking for updates...")
+                        checkForUpdates()
+                    }
+                } else {
+                    sduLog("WARNING: updateServer is empty!")
+                }
+            } else {
+                sduLog("WARNING: packet is not PacketRequestUpdate, got ${packet::class.simpleName}")
+            }
+        }
+        sduLog("init() complete")
+    }
+
+    /**
+     * Запросить URL SDU сервера у основного сервера
+     */
+    fun requestSduServer() {
+        sduLog("requestSduServer() — sending PacketRequestUpdate with empty updateServer")
+        val packet = PacketRequestUpdate().apply {
+            updateServer = ""
+        }
+        ProtocolManager.sendPacket(packet)
+        sduLog("PacketRequestUpdate sent")
+    }
+
+    /**
+     * Проверить наличие обновлений на SDU сервере
+     */
+    suspend fun checkForUpdates(): UpdateInfo? = withContext(Dispatchers.IO) {
+        sduLog("checkForUpdates() called")
+        val sdu = sduServerUrl
+        if (sdu == null) {
+            sduLog("ERROR: sduServerUrl is null! Requesting again...")
+            requestSduServer()
+            return@withContext null
+        }
+
+        _updateState.value = UpdateState.Checking
+        sduLog("State -> Checking")
+
+        try {
+            val arch = Build.SUPPORTED_ABIS.firstOrNull() ?: "arm64-v8a"
+            val url = "$sdu/updates/all?app=$appVersion&kernel=$appVersion&platform=android&arch=$arch"
+            sduLog("HTTP GET: $url")
+
+            val request = Request.Builder().url(url).get().build()
+            val response = httpClient.newCall(request).execute()
+
+            sduLog("HTTP response: ${response.code} ${response.message}")
+
+            if (!response.isSuccessful) {
+                sduLog("ERROR: SDU returned ${response.code}")
+                _updateState.value = UpdateState.Error("Server returned ${response.code}")
+                return@withContext null
+            }
+
+            val body = response.body?.string() ?: run {
+                sduLog("ERROR: Empty response body")
+                _updateState.value = UpdateState.Error("Empty response")
+                return@withContext null
+            }
+
+            sduLog("Response body: $body")
+            val info = parseUpdateResponse(body)
+            latestUpdateInfo = info
+            sduLog("Parsed: version=${info.version}, servicePackUrl=${info.servicePackUrl}, kernelUpdateRequired=${info.kernelUpdateRequired}")
+
+            when {
+                info.servicePackUrl != null -> {
+                    sduLog("State -> UpdateAvailable(${info.version})")
+                    _updateState.value = UpdateState.UpdateAvailable(info.version)
+                }
+                else -> {
+                    sduLog("State -> UpToDate")
+                    _updateState.value = UpdateState.UpToDate
+                }
+            }
+
+            return@withContext info
+        } catch (e: Exception) {
+            sduLog("EXCEPTION: ${e::class.simpleName}: ${e.message}")
+            _updateState.value = UpdateState.Error(e.message ?: "Unknown error")
+            return@withContext null
+        }
+    }
+
+    /**
+     * Скачать и установить обновление
+     */
+    fun downloadAndInstall(context: Context) {
+        val info = latestUpdateInfo ?: return
+        val sdu = sduServerUrl ?: return
+        val url = info.servicePackUrl ?: return
+
+        downloadJob?.cancel()
+        downloadJob = scope.launch {
+            _updateState.value = UpdateState.Downloading(0)
+            _downloadProgress.value = 0
+
+            try {
+                val fullUrl = if (url.startsWith("http")) url else "$sdu$url"
+                Log.i(TAG, "Downloading update from: $fullUrl")
+
+                val request = Request.Builder().url(fullUrl).get().build()
+                val response = httpClient.newCall(request).execute()
+
+                if (!response.isSuccessful) {
+                    _updateState.value = UpdateState.Error("Download failed: ${response.code}")
+                    return@launch
+                }
+
+                val responseBody = response.body ?: run {
+                    _updateState.value = UpdateState.Error("Empty download response")
+                    return@launch
+                }
+
+                val totalBytes = responseBody.contentLength()
+                val apkFile = File(context.cacheDir, "Rosetta-${info.version}.apk")
+
+                responseBody.byteStream().use { input ->
+                    apkFile.outputStream().use { output ->
+                        val buffer = ByteArray(8192)
+                        var bytesRead: Long = 0
+                        var read: Int
+
+                        while (input.read(buffer).also { read = it } != -1) {
+                            if (!isActive) {
+                                apkFile.delete()
+                                return@launch
+                            }
+                            output.write(buffer, 0, read)
+                            bytesRead += read
+                            if (totalBytes > 0) {
+                                val progress = ((bytesRead * 100) / totalBytes).toInt()
+                                _downloadProgress.value = progress
+                                _updateState.value = UpdateState.Downloading(progress)
+                            }
+                        }
+                    }
+                }
+
+                Log.i(TAG, "Download complete: ${apkFile.absolutePath}")
+                _updateState.value = UpdateState.ReadyToInstall(apkFile.absolutePath)
+
+                // Запускаем установку APK
+                installApk(context, apkFile)
+
+            } catch (e: CancellationException) {
+                Log.i(TAG, "Download cancelled")
+                _updateState.value = UpdateState.UpdateAvailable(info.version)
+            } catch (e: Exception) {
+                Log.e(TAG, "Download failed", e)
+                _updateState.value = UpdateState.Error("Download failed: ${e.message}")
+            }
+        }
+    }
+
+    /**
+     * Открыть системный установщик APK
+     */
+    private fun installApk(context: Context, apkFile: File) {
+        try {
+            val uri: Uri = FileProvider.getUriForFile(
+                context,
+                "${context.packageName}.provider",
+                apkFile
+            )
+
+            val intent = Intent(Intent.ACTION_VIEW).apply {
+                setDataAndType(uri, "application/vnd.android.package-archive")
+                flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_GRANT_READ_URI_PERMISSION
+            }
+
+            context.startActivity(intent)
+        } catch (e: Exception) {
+            Log.e(TAG, "Failed to launch installer", e)
+            _updateState.value = UpdateState.Error("Failed to open installer: ${e.message}")
+        }
+    }
+
+    /**
+     * Отменить текущее скачивание
+     */
+    fun cancelDownload() {
+        downloadJob?.cancel()
+        downloadJob = null
+        val info = latestUpdateInfo
+        _updateState.value = if (info?.servicePackUrl != null)
+            UpdateState.UpdateAvailable(info.version) else UpdateState.Idle
+        _downloadProgress.value = 0
+    }
+
+    /**
+     * Сбросить состояние
+     */
+    fun reset() {
+        _updateState.value = UpdateState.Idle
+        _downloadProgress.value = 0
+        latestUpdateInfo = null
+    }
+
+    /**
+     * Парсинг JSON ответа от SDU /updates/all
+     * Формат: {"items":[{"platform":"android","arch":"x64","version":"1.0.7","downloadUrl":"/kernel/android/x64/Rosetta-1.0.7.apk"}, ...]}
+     * Ищем запись с platform=android, берём самую новую версию
+     */
+    private fun parseUpdateResponse(json: String): UpdateInfo {
+        val obj = org.json.JSONObject(json)
+        val items = obj.optJSONArray("items")
+
+        if (items == null || items.length() == 0) {
+            sduLog("No items in response, trying legacy format...")
+            // Fallback на старый формат /updates/get
+            return UpdateInfo(
+                version = obj.optString("version", ""),
+                platform = obj.optString("platform", ""),
+                arch = obj.optString("arch", ""),
+                kernelUpdateRequired = obj.optBoolean("kernel_update_required", false),
+                servicePackUrl = obj.optString("service_pack_url", "").takeIf { it.isNotEmpty() && it != "null" },
+                kernelUrl = obj.optString("kernel_url", "").takeIf { it.isNotEmpty() && it != "null" }
+            )
+        }
+
+        // Ищем все android-записи
+        var bestVersion: String? = null
+        var bestDownloadUrl: String? = null
+        var bestArch: String? = null
+
+        val deviceArch = Build.SUPPORTED_ABIS.firstOrNull() ?: "arm64-v8a"
+        // Маппинг ABI -> SDU arch
+        val sduArch = when {
+            deviceArch.contains("arm64") -> "arm64"
+            deviceArch.contains("arm") -> "arm"
+            deviceArch.contains("x86_64") -> "x64"
+            deviceArch.contains("x86") -> "x86"
+            else -> deviceArch
+        }
+
+        sduLog("Looking for platform=android, preferring arch=$sduArch (device ABI=$deviceArch)")
+
+        for (i in 0 until items.length()) {
+            val item = items.getJSONObject(i)
+            val platform = item.optString("platform", "")
+            if (platform != "android") continue
+
+            val itemArch = item.optString("arch", "")
+            val itemVersion = item.optString("version", "")
+            val itemUrl = item.optString("downloadUrl", "")
+
+            sduLog("Found android entry: arch=$itemArch, version=$itemVersion, url=$itemUrl")
+
+            // Берём самую новую версию (предпочитаем совпадение по arch)
+            if (bestVersion == null || compareVersions(itemVersion, bestVersion) > 0 ||
+                (compareVersions(itemVersion, bestVersion) == 0 && itemArch == sduArch)) {
+                bestVersion = itemVersion
+                bestDownloadUrl = itemUrl
+                bestArch = itemArch
+            }
+        }
+
+        if (bestVersion == null) {
+            sduLog("No android entries found in items")
+            return UpdateInfo("", "android", "", false, null, null)
+        }
+
+        sduLog("Best android update: version=$bestVersion, arch=$bestArch, url=$bestDownloadUrl")
+
+        // Сравниваем с текущей версией
+        val isNewer = compareVersions(bestVersion, appVersion) > 0
+        sduLog("Current=$appVersion, available=$bestVersion, isNewer=$isNewer")
+
+        return UpdateInfo(
+            version = bestVersion,
+            platform = "android",
+            arch = bestArch ?: "",
+            kernelUpdateRequired = false,
+            servicePackUrl = if (isNewer) bestDownloadUrl else null,
+            kernelUrl = null
+        )
+    }
+
+    /**
+     * Сравнение версий: "1.0.7" vs "1.0.6" -> 1 (первая больше)
+     */
+    private fun compareVersions(v1: String, v2: String): Int {
+        val parts1 = v1.split(".").map { it.toIntOrNull() ?: 0 }
+        val parts2 = v2.split(".").map { it.toIntOrNull() ?: 0 }
+        val maxLen = maxOf(parts1.size, parts2.size)
+        for (i in 0 until maxLen) {
+            val p1 = parts1.getOrElse(i) { 0 }
+            val p2 = parts2.getOrElse(i) { 0 }
+            if (p1 != p2) return p1.compareTo(p2)
+        }
+        return 0
+    }
+}
+
+/**
+ * Информация об обновлении от SDU сервера
+ */
+data class UpdateInfo(
+    val version: String,
+    val platform: String,
+    val arch: String,
+    val kernelUpdateRequired: Boolean,
+    val servicePackUrl: String?,
+    val kernelUrl: String?
+)
+
+/**
+ * Состояния процесса обновления
+ */
+sealed class UpdateState {
+    /** Начальное состояние */
+    data object Idle : UpdateState()
+
+    /** Проверяем наличие обновлений */
+    data object Checking : UpdateState()
+
+    /** Приложение обновлено */
+    data object UpToDate : UpdateState()
+
+    /** Доступно обновление */
+    data class UpdateAvailable(val version: String) : UpdateState()
+
+    /** Скачивание APK */
+    data class Downloading(val progress: Int) : UpdateState()
+
+    /** Готово к установке */
+    data class ReadyToInstall(val apkPath: String) : UpdateState()
+
+    /** Ошибка */
+    data class Error(val message: String) : UpdateState()
+}

app/src/main/res/drawable/ic_rosette_check.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <!-- Checkmark centered inside rosette -->
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M16.14,9.34a1,1,0,0,0,-1.414,0l-3.876,3.876l-1.586,-1.586a1,1,0,0,0,-1.414,1.414l2.293,2.293a1,1,0,0,0,1.414,0l4.583,-4.583a1,1,0,0,0,0,-1.414z" />
+</vector>

app/src/main/res/drawable/ic_rosette_discount_check.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <!-- Rosette with checkmark cutout (evenOdd) -->
+    <path
+        android:fillColor="#FF000000"
+        android:fillType="evenOdd"
+        android:pathData="M12.01,2.011a3.2,3.2,0,0,1,2.113,0.797l0.154,0.145l0.698,0.698a1.2,1.2,0,0,0,0.71,0.341l0.135,0.008h1a3.2,3.2,0,0,1,3.195,3.018l0.005,0.182v1c0,0.27,0.092,0.533,0.258,0.743l0.09,0.1l0.697,0.698a3.2,3.2,0,0,1,0.147,4.382l-0.145,0.154l-0.698,0.698a1.2,1.2,0,0,0,-0.341,0.71l-0.008,0.135v1a3.2,3.2,0,0,1,-3.018,3.195l-0.182,0.005h-1a1.2,1.2,0,0,0,-0.743,0.258l-0.1,0.09l-0.698,0.697a3.2,3.2,0,0,1,-4.382,0.147l-0.154,-0.145l-0.698,-0.698a1.2,1.2,0,0,0,-0.71,-0.341l-0.135,-0.008h-1a3.2,3.2,0,0,1,-3.195,-3.018l-0.005,-0.182v-1a1.2,1.2,0,0,0,-0.258,-0.743l-0.09,-0.1l-0.697,-0.698a3.2,3.2,0,0,1,-0.147,-4.382l0.145,-0.154l0.698,-0.698a1.2,1.2,0,0,0,0.341,-0.71l0.008,-0.135v-1l0.005,-0.182a3.2,3.2,0,0,1,3.013,-3.013l0.182,-0.005h1a1.2,1.2,0,0,0,0.743,-0.258l0.1,-0.09l0.698,-0.697a3.2,3.2,0,0,1,2.123,-0.944l0.187,-0.003z M16.14,9.34a1,1,0,0,0,-1.414,0l-3.876,3.876l-1.586,-1.586a1,1,0,0,0,-1.414,1.414l2.293,2.293a1,1,0,0,0,1.414,0l4.583,-4.583a1,1,0,0,0,0,-1.414z" />
+</vector>