Translate to Russian

.cursor/rules/android-build-deploy-device.mdc

@@ -14,7 +14,7 @@ Whenever you change anything under **`app:android`**, **`app:shared`** (`commonM
 5. For **each** chosen device `id`: **`mobile_install_app`** with `path` = absolute path to  
    `app/android/build/outputs/apk/debug/android-debug.apk`  
    in this repo.
-6. For **each** same device: **`mobile_launch_app`** with `packageName` **`ru.fromchat.beta`** (debug `applicationIdSuffix`).
+6. For **each** same device: **`mobile_launch_app`** with `packageName` **`ru.fromchat.beta`**. The debug APK from `assembleDebug` uses `applicationIdSuffix = ".beta"` (`app/android/build.gradle.kts`), so the on-device package is **`ru.fromchat.beta`**, not `ru.fromchat`—`ru.fromchat` will fail to launch after a debug install. (Release / no-suffix id is `ru.fromchat`.)
 
 Also run **`:app:shared:compileKotlinIosArm64`** (and fix errors) when shared Kotlin changes should stay valid for iOS—either with the same Gradle invocation as in `general.mdc` or right after the Android APK build.
 

.cursor/rules/general.mdc

@@ -6,7 +6,7 @@ When working with the mobile app:
 
 - After implementing the solution, run "export JAVA_HOME=/Applications/Android\ Studio.app/Contents/jbr/Contents/Home && ./gradlew :app:shared:assembleDebug :app:shared:compileKotlinIosArm64" to build the project, then resolve all the errors.
 
-- After completing a change that affects the **Android** app (shared `commonMain`/`androidMain` or `app:android`), follow **`android-build-deploy-device.mdc`**: build debug APK, then Mobile MCP install + launch on a **real device** by default—emulator only if the user asked for it or no phone is connected (see that rule for APK path and `ru.fromchat.beta`).
+- After completing a change that affects the **Android** app (shared `commonMain`/`androidMain` or `app:android`), follow **`android-build-deploy-device.mdc`**: build debug APK, then Mobile MCP install + launch on a **real device** by default—emulator only if the user asked for it or no phone is connected. For **`mobile_launch_app`** after a debug install, use package **`ru.fromchat.beta`** (not `ru.fromchat`); details in that rule.
 
 # ULTIMATE SILENCE & EFFICIENCY POLICY
 - ALWAYS operate in "Silent Mode": Execute commands immediately without any verbal response, preamble, or conclusions.

.cursor/rules/strings-simple-i18n.mdc

@@ -0,0 +1,17 @@
+---
+alwaysApply: true
+---
+
+# UI strings (shared module)
+
+## No hardcoded user-visible text
+- Do not put English or Russian (or other) UI copy directly in Kotlin/Compose for screens users see. Use Compose Multiplatform resources: `app/shared/src/commonMain/composeResources/values/strings.xml` (default English) and `values-ru/strings.xml` (Russian), **same `name` keys** in both files.
+- Use `stringResource(Res.string.*)` in `@Composable` (and `import ru.fromchat.*` when needed so `Res.string` extensions resolve). Internal-only tokens (cache keys, shared-element keys, protocol constants) may stay in code.
+
+## When you add or change copy
+- Add or update the string in **both** `values/strings.xml` and `values-ru/strings.xml` in the **same** change.
+- Prefer **plain language** short words, short sentences; avoid jargon unless necessary (e.g. say “server address” rather than “URL” in labels when it fits).
+
+## Debug API screen — excluded
+- The **Debug API** screen (`ru.fromchat.ui.debug`) is not for standard users. You may **hardcode English (or any) strings directly in Kotlin** for that screen and **do not** need to add matching keys in `values/strings.xml` / `values-ru/strings.xml` or keep translations in sync.
+- The **entry row** that opens Debug API (e.g. in Settings) stays in compose resources like other settings copy.

app/shared/src/androidMain/kotlin/ru/fromchat/ui/debug/DebugApiScreen.kt

@@ -1,346 +1,8 @@
 package ru.fromchat.ui.debug
 
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
-import androidx.compose.material.icons.filled.BugReport
-import androidx.compose.material3.Button
-import androidx.compose.material3.DividerDefaults
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.OutlinedTextField
-import androidx.compose.material3.Scaffold
-import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.runtime.saveable.rememberSaveable
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.unit.dp
-import com.pr0gramm3r101.utils.crypto.Base64
-import com.pr0gramm3r101.utils.settings.settings
-import kotlinx.coroutines.launch
-import ru.fromchat.api.ApiClient
-import ru.fromchat.api.SendDmFile
-import ru.fromchat.crypto.IdentityKeyManager
-import ru.fromchat.crypto.decryptEnvelope
-import ru.fromchat.crypto.transport.TransportCrypto
-import ru.fromchat.ui.LocalNavController
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 actual fun DebugApiScreen() {
-    val navController = LocalNavController.current
-    val scope = rememberCoroutineScope()
-    val scrollState = rememberScrollState()
-
-    var statusMessage by rememberSaveable { mutableStateOf("") }
-    var profileResult by rememberSaveable { mutableStateOf<String?>(null) }
-    var conversationsResult by rememberSaveable { mutableStateOf<String?>(null) }
-    var historyResult by rememberSaveable { mutableStateOf<String?>(null) }
-    var historyUserId by rememberSaveable { mutableStateOf("0") }
-    var decryptedMessage by rememberSaveable { mutableStateOf<String?>(null) }
-    var sendRecipientId by rememberSaveable { mutableStateOf("") }
-    var sendMessageText by rememberSaveable { mutableStateOf("") }
-
-    Scaffold(
-        topBar = {
-            TopAppBar(
-                navigationIcon = {
-                    IconButton(onClick = { navController.navigateUp() }) {
-                        Icon(imageVector = Icons.AutoMirrored.Filled.ArrowBack, contentDescription = null)
-                    }
-                },
-                title = {
-                    Text(text = "Debug API")
-                },
-                actions = {
-                    IconButton(onClick = {}) {
-                        Icon(imageVector = Icons.Filled.BugReport, contentDescription = null)
-                    }
-                }
-            )
-        }
-    ) { innerPadding ->
-        Column(
-            modifier = Modifier
-                .padding(innerPadding)
-                .verticalScroll(scrollState)
-                .padding(16.dp),
-            verticalArrangement = Arrangement.spacedBy(12.dp)
-        ) {
-            Text(
-                text = statusMessage.takeIf { it.isNotBlank() }
-                    ?: "Status will appear here",
-                style = MaterialTheme.typography.bodyMedium
-            )
-
-            Button(
-                onClick = {
-                    scope.launch {
-                        runCatching { ApiClient.getOwnProfile() }
-                            .onSuccess {
-                                profileResult = ApiClient.json.encodeToString(it)
-                                statusMessage = "Profile loaded"
-                            }
-                            .onFailure {
-                                statusMessage = it.message ?: "An unknown error occurred"
-                            }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Load own profile")
-            }
-
-            Text(
-                text = profileResult ?: "No data loaded yet",
-                style = MaterialTheme.typography.bodySmall,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    scope.launch {
-                        runCatching { ApiClient.getDmConversations() }
-                            .onSuccess {
-                                conversationsResult = ApiClient.json.encodeToString(it)
-                                statusMessage = "Conversations loaded"
-                            }
-                            .onFailure {
-                                statusMessage = it.message ?: "An unknown error occurred"
-                            }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Load DM conversations")
-            }
-
-            Text(
-                text = conversationsResult ?: "No data loaded yet",
-                style = MaterialTheme.typography.bodySmall,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            OutlinedTextField(
-                value = historyUserId,
-                onValueChange = { historyUserId = it },
-                label = { Text(text = "History user ID") },
-                singleLine = true,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    val userId = historyUserId.toIntOrNull()
-                    if (userId == null) {
-                        statusMessage = "Enter a valid user ID"
-                        return@Button
-                    }
-
-                    scope.launch {
-                        runCatching { ApiClient.getDmHistory(userId) }
-                            .onSuccess {
-                                historyResult = ApiClient.json.encodeToString(it)
-                                statusMessage = "DM history loaded"
-                            }
-                            .onFailure {
-                                statusMessage = it.message ?: "An unknown error occurred"
-                            }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Load DM history")
-            }
-
-            Text(
-                text = historyResult ?: "No data loaded yet",
-                style = MaterialTheme.typography.bodySmall,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            HorizontalDivider(
-                modifier = Modifier.padding(vertical = 8.dp),
-                thickness = DividerDefaults.Thickness,
-                color = DividerDefaults.color
-            )
-
-            Text(
-                text = "DM Send Test",
-                style = MaterialTheme.typography.titleMedium,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            OutlinedTextField(
-                value = sendRecipientId,
-                onValueChange = { sendRecipientId = it },
-                label = { Text(text = "Recipient user ID") },
-                singleLine = true,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            OutlinedTextField(
-                value = sendMessageText,
-                onValueChange = { sendMessageText = it },
-                label = { Text(text = "Message text") },
-                singleLine = false,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    val userId = sendRecipientId.toIntOrNull()
-                    if (userId == null) {
-                        statusMessage = "Enter a valid recipient ID"
-                        return@Button
-                    }
-                    if (sendMessageText.isBlank()) {
-                        statusMessage = "Enter a message to send"
-                        return@Button
-                    }
-
-                    scope.launch {
-                        runCatching {
-                            ApiClient.sendDm(
-                                recipientId = userId,
-                                plaintext = sendMessageText.trim(),
-                                replyToId = null
-                            )
-                        }.onSuccess {
-                            statusMessage = "DM sent successfully"
-                        }.onFailure {
-                            statusMessage = it.message ?: "Failed to send DM"
-                        }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Send DM")
-            }
-
-            Text(
-                text = "Phase 1: File Protocol Test",
-                style = MaterialTheme.typography.titleMedium,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    scope.launch {
-                        runCatching {
-                            val fileBytes = "test file".encodeToByteArray()
-                            val transportKey = ApiClient.getTransportPublicKey()
-                            val (msgCipher, secret) = TransportCrypto.encryptWithTransportKeyWithEphemeralSecret(
-                                plaintext = "test file",
-                                transportPublicKeyB64 = transportKey.publicKeyB64
-                            )
-                            try {
-                                val transportBlob = TransportCrypto.encryptFileForTransport(
-                                    fileBytes = fileBytes,
-                                    transportPublicKeyB64 = transportKey.publicKeyB64,
-                                    ephemeralSecretKey = secret
-                                )
-                                val sendFile = SendDmFile(
-                                    encryptedFileDataB64 = Base64.encode(transportBlob),
-                                    filename = "test.txt",
-                                    fileSize = fileBytes.size.toLong()
-                                )
-                                ApiClient.sendDm(
-                                    recipientId = 2,
-                                    plaintext = "test file",
-                                    transportFiles = listOf(sendFile),
-                                    preparedTransport = msgCipher
-                                )
-                            } finally {
-                                secret.fill(0)
-                            }
-                        }.onSuccess {
-                            statusMessage = "Protocol test file sent to user 2"
-                        }.onFailure {
-                            statusMessage = it.message ?: "Failed to send protocol test file"
-                        }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Send test.txt to user 2")
-            }
-
-            HorizontalDivider(
-                modifier = Modifier.padding(vertical = 8.dp),
-                thickness = DividerDefaults.Thickness,
-                color = DividerDefaults.color
-            )
-
-            Text(
-                text = "DM Decryption Test",
-                style = MaterialTheme.typography.titleMedium,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    val userId = historyUserId.toIntOrNull()
-                    if (userId == null) {
-                        statusMessage = "Enter a valid user ID"
-                        return@Button
-                    }
-
-                    scope.launch {
-                        try {
-                            // Restore keys from local storage if available
-                            IdentityKeyManager.restoreFromLocal()
-                            
-                            // Fetch DM history
-                            val history = ApiClient.getDmHistory(userId)
-                            if (history.messages.isEmpty()) {
-                                statusMessage = "No messages found"
-                                decryptedMessage = null
-                                return@launch
-                            }
-
-                            // Get current user ID
-                            val currentUserId = settings.getInt("current_user_id", 0)
-                            if (currentUserId == 0) {
-                                statusMessage = "Current user ID not found"
-                                decryptedMessage = null
-                                return@launch
-                            }
-
-                            // Try to decrypt the first envelope
-                            val firstEnvelope = history.messages.first()
-                            val plaintext = decryptEnvelope(firstEnvelope, currentUserId)
-                            decryptedMessage = "Decrypted: $plaintext"
-                            statusMessage = "Decryption successful"
-                        } catch (e: Exception) {
-                            statusMessage = "Decryption failed: ${e.message}"
-                            decryptedMessage = "Error: ${e.message}\n${e.stackTraceToString()}"
-                        }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Decrypt First DM")
-            }
-
-            Text(
-                text = decryptedMessage ?: "No decrypted message yet",
-                style = MaterialTheme.typography.bodySmall,
-                modifier = Modifier.fillMaxWidth()
-            )
-        }
-    }
+    DebugApiScreenContent()
 }

app/shared/src/commonMain/composeResources/values-ru/strings.xml

@@ -1,14 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
 <resources>
+    <string name="app_name">FromChat</string>
+    <string name="back">Назад</string>
+    <string name="settings">Настройки</string>
+    <string name="home">Главная</string>
+    <string name="about">О приложении</string>
     <string name="about_version">Версия 1.0</string>
     <string name="about_link_telegram">Telegram</string>
     <string name="about_link_max">MAX</string>
     <string name="about_link_website">Сайт</string>
     <string name="app_desc">100% бесплатный и открытый мессенджер. Поддерживает self-hosted установку на своём сервере.</string>
-
-    <!-- Typing Indicators -->
+    <string name="welcome">Добро пожаловать!</string>
+    <string name="login">Войти</string>
+    <string name="login_d">Войдите в свой аккаунт</string>
+    <string name="register">Регистрация</string>
+    <string name="register_d">Создать новый аккаунт</string>
+    <string name="register_button">Создать аккаунт</string>
+    <string name="username">Имя пользователя</string>
+    <string name="password">Пароль</string>
+    <string name="confirm_password">Пароль ещё раз</string>
+    <string name="display_name">Как вас видят другие</string>
+    <string name="display_name_error">От 1 до 64 символов</string>
+    <string name="fill_all_fields">Заполните все поля</string>
+    <string name="username_length_error">Имя пользователя — от 3 до 20 символов</string>
+    <string name="password_length_error">Пароль — от 5 до 50 символов</string>
+    <string name="passwords_dont_match">Пароли не совпадают</string>
+    <string name="chats">Чаты</string>
+    <string name="contacts">Контакты</string>
+    <string name="profile">Профиль</string>
+    <string name="dms">Личные чаты</string>
+    <string name="coming_soon">Скоро…</string>
+    <string name="public_chat">Общий чат</string>
+    <string name="chat_last_mesaage">Вы: последнее сообщение</string>
+    <string name="message_placeholder">Напишите сообщение…</string>
+    <string name="status_connecting">Соединение</string>
+    <string name="status_updating">Обновление</string>
+    <string name="chat_group_label">Группа</string>
+    <string name="chat_members_count">%1$d человек</string>
+    <string name="cd_call">Позвонить</string>
+    <string name="message_sender_you">Вы</string>
+    <string name="user_fallback">Человек %1$d</string>
+    <string name="message_corrupted">Это сообщение не удалось показать.</string>
+    <string name="message_edited_suffix">(изменено)</string>
+    <string name="message_replying_to">Ответ %1$s</string>
+    <string name="message_corrupted_short">Сообщение не показывается</string>
+    <string name="message_editing_title">Правка сообщения</string>
+    <string name="action_reply">Ответить</string>
+    <string name="action_edit">Изменить</string>
+    <string name="action_delete">Удалить</string>
+    <string name="action_save">Сохранить</string>
+    <string name="cd_close">Закрыть</string>
+    <string name="cd_remove">Убрать</string>
+    <string name="cd_pick_image">Выбрать фото</string>
+    <string name="cd_pick_file">Выбрать файл</string>
+    <string name="cd_send">Отправить</string>
+    <string name="profile_title">Профиль</string>
+    <string name="profile_load_failed">Не получилось загрузить профиль</string>
+    <string name="action_open_settings">Настройки</string>
+    <string name="action_chat">Написать</string>
+    <string name="action_copy_link">Скопировать ссылку</string>
+    <string name="link_copied">Ссылка скопирована</string>
+    <string name="profile_details_category">О человеке</string>
+    <string name="profile_headline_username">Имя пользователя</string>
+    <string name="profile_headline_member_since">Дата регистрации</string>
+    <string name="profile_headline_bio">О себе</string>
+    <string name="profile_headline_verification">Официальный аккаунт</string>
+    <string name="profile_verified_support">Это официальный аккаунт</string>
+    <string name="profile_verify_prompt_support">Нажмите, чтобы сделать аккаунт официальным (только админы)</string>
+    <string name="verify">Сделать официальным</string>
+    <string name="unverify">Снять официальный статус</string>
+    <string name="cd_verified_account">Официальный аккаунт</string>
+    <string name="cd_similar_verified">Похож на официальный аккаунт</string>
+    <string name="presence_online">В сети</string>
+    <string name="presence_recently">Недавно заходил</string>
+    <string name="presence_today_at">Сегодня в %1$s</string>
+    <string name="presence_yesterday_at">Вчера в %1$s</string>
+    <string name="presence_weekday_at">%1$s в %2$s</string>
+    <string name="presence_date_this_year">%1$d %2$s в %3$s</string>
+    <string name="presence_date_full">%1$d %2$s %3$d в %4$s</string>
+    <string name="weekday_mon">понедельник</string>
+    <string name="weekday_tue">вторник</string>
+    <string name="weekday_wed">среда</string>
+    <string name="weekday_thu">четверг</string>
+    <string name="weekday_fri">пятница</string>
+    <string name="weekday_sat">суббота</string>
+    <string name="weekday_sun">воскресенье</string>
+    <string name="month_jan">янв</string>
+    <string name="month_feb">фев</string>
+    <string name="month_mar">мар</string>
+    <string name="month_apr">апр</string>
+    <string name="month_may">май</string>
+    <string name="month_jun">июн</string>
+    <string name="month_jul">июл</string>
+    <string name="month_aug">авг</string>
+    <string name="month_sep">сен</string>
+    <string name="month_oct">окт</string>
+    <string name="month_nov">ноя</string>
+    <string name="month_dec">дек</string>
+    <string name="server_config_title">Подключение к серверу</string>
+    <string name="server_config_subtitle">Введите адрес сервера, к которому хотите подключиться</string>
+    <string name="server_url_label">Адрес сервера</string>
+    <string name="server_url_hint">example.com</string>
+    <string name="https_enabled">Защищённое соединение</string>
+    <string name="save_continue">Сохранить и продолжить</string>
+    <string name="change_server">Сменить сервер</string>
+    <string name="change_server_d">Подключиться к альтернативному серверу FromChat и выйти из аккаунта.</string>
+    <string name="logout">Выйти</string>
+    <string name="materialYou">Material You</string>
+    <string name="materialYou_d">Цвета как на обоях. Работает с Android 12 и новее.</string>
+    <string name="theme">Оформление</string>
+    <string name="as_system">Как на телефоне</string>
+    <string name="light">Светлое</string>
+    <string name="dark">Тёмное</string>
+    <string name="debug_tools">Отладка API</string>
+    <string name="debug_tools_d">Просмотр ответов API профиля и личных сообщений.</string>
+    <string name="error_unexpected">Что-то пошло не так</string>
+    <string name="error_invalid_credentials">Неверное имя пользователя или пароль</string>
+    <string name="error_connection">Не удалось подключиться. Проверьте интернет.</string>
+    <string name="error_unknown">Что-то пошло не так. Попробуйте ещё раз.</string>
     <string name="typing_single">%1$s печатает…</string>
     <string name="typing_two">%1$s и %2$s печатают…</string>
-    <string name="typing_many">%1$s, %2$s и еще %3$d печатают…</string>
+    <string name="typing_many">%1$s, %2$s и ещё %3$d печатают…</string>
+    <string name="more">Ещё</string>
+    <string name="unread_count">+%1$d</string>
 </resources>
-
-

app/shared/src/commonMain/composeResources/values/strings.xml

@@ -1,88 +1,160 @@
+<?xml version="1.0" encoding="utf-8"?>
 <resources>
     <!-- App -->
     <string name="app_name">FromChat</string>
-    
+
     <!-- Navigation -->
     <string name="back">Back</string>
     <string name="settings">Settings</string>
     <string name="home">Home</string>
-    <string name="about">About app</string>
+    <string name="about">About</string>
     <string name="about_version">Version 1.0</string>
     <string name="about_link_telegram">Telegram</string>
     <string name="about_link_max">MAX</string>
     <string name="about_link_website">Website</string>
     <string name="app_desc">100% free and open messenger. Supports self-hosted installation on your own server.</string>
-    
+
     <!-- Authentication -->
     <string name="welcome">Welcome!</string>
-    <string name="login">Sign In</string>
-    <string name="login_d">Sign in to your account</string>
-    <string name="register">Registration</string>
+    <string name="login">Log in</string>
+    <string name="login_d">Log in to your account</string>
+    <string name="register">Sign up</string>
     <string name="register_d">Create a new account</string>
-    <string name="register_button">Register</string>
+    <string name="register_button">Create account</string>
     <string name="username">Username</string>
     <string name="password">Password</string>
-    <string name="confirm_password">Confirm Password</string>
-    <string name="display_name">Display Name</string>
-    <string name="display_name_error">Display name must be between 1 and 64 characters</string>
-    
+    <string name="confirm_password">Password again</string>
+    <string name="display_name">Name shown to others</string>
+    <string name="display_name_error">Use between 1 and 64 characters</string>
+
     <!-- Validation Errors -->
-    <string name="fill_all_fields">Please fill in all fields</string>
-    <string name="username_length_error">Username must be between 3 and 20 characters</string>
-    <string name="password_length_error">Password must be between 5 and 50 characters</string>
-    <string name="passwords_dont_match">Passwords do not match</string>
-    
+    <string name="fill_all_fields">Please fill in every field</string>
+    <string name="username_length_error">Username must be 3 to 20 characters</string>
+    <string name="password_length_error">Password must be 5 to 50 characters</string>
+    <string name="passwords_dont_match">The two passwords don’t match</string>
+
     <!-- Main Screen -->
     <string name="chats">Chats</string>
     <string name="contacts">Contacts</string>
-    <string name="dms">Direct Messages</string>
-    <string name="coming_soon">Coming soon...</string>
-    <string name="public_chat">General Chat</string>
-    <string name="chat_last_mesaage">You: Last message</string>
-    <string name="message_placeholder">Type a message...</string>
-    
-    <!-- Server Configuration -->
-    <string name="server_config_title">Server Configuration</string>
-    <string name="server_config_subtitle">Enter server details to connect</string>
-    <string name="server_url_label">Server URL</string>
-    <string name="server_url_hint">example.com</string>
-    <string name="https_enabled">Use HTTPS</string>
-    <string name="save_continue">Save &amp; Continue</string>
+    <string name="profile">Profile</string>
+    <string name="dms">Private chats</string>
+    <string name="coming_soon">Coming soon…</string>
+    <string name="public_chat">Main chat</string>
+    <string name="chat_last_mesaage">You: last message</string>
+    <string name="message_placeholder">Write a message…</string>
+
+    <!-- Connection / chat chrome -->
+    <string name="status_connecting">Connecting</string>
+    <string name="status_updating">Updating</string>
+    <string name="chat_group_label">Group</string>
+    <string name="chat_members_count">%1$d people</string>
+    <string name="cd_call">Call</string>
+
+    <!-- Messages -->
+    <string name="message_sender_you">You</string>
+    <string name="user_fallback">Person %1$d</string>
+    <string name="message_corrupted">This message could not be shown.</string>
+    <string name="message_edited_suffix">(edited)</string>
+    <string name="message_replying_to">Reply to %1$s</string>
+    <string name="message_corrupted_short">Can’t show this message</string>
+    <string name="message_editing_title">Edit message</string>
+
+    <!-- Message actions -->
+    <string name="action_reply">Reply</string>
+    <string name="action_edit">Edit</string>
+    <string name="action_delete">Delete</string>
+    <string name="action_save">Save</string>
+
+    <!-- Chat input -->
+    <string name="cd_close">Close</string>
+    <string name="cd_remove">Remove</string>
+    <string name="cd_pick_image">Choose photo</string>
+    <string name="cd_pick_file">Choose file</string>
+    <string name="cd_send">Send</string>
+
+    <!-- Profile -->
+    <string name="profile_title">Profile</string>
+    <string name="profile_load_failed">Couldn’t load this profile</string>
+    <string name="action_open_settings">Settings</string>
+    <string name="action_chat">Chat</string>
+    <string name="action_copy_link">Copy link</string>
+    <string name="link_copied">Link copied</string>
+    <string name="profile_details_category">About this person</string>
+    <string name="profile_headline_username">Username</string>
+    <string name="profile_headline_member_since">Joined</string>
+    <string name="profile_headline_bio">About</string>
+    <string name="profile_headline_verification">Verified account</string>
+    <string name="profile_verified_support">This account is verified</string>
+    <string name="profile_verify_prompt_support">Tap to verify (admins only)</string>
+
+    <!-- Verify (admin) -->
+    <string name="verify">Verify</string>
+    <string name="unverify">Remove verification</string>
+
+    <!-- Status badge -->
+    <string name="cd_verified_account">Verified account</string>
+    <string name="cd_similar_verified">May be a verified account</string>
+
+    <!-- Presence / last seen -->
+    <string name="presence_online">Online</string>
+    <string name="presence_recently">Active recently</string>
+    <string name="presence_today_at">Today at %1$s</string>
+    <string name="presence_yesterday_at">Yesterday at %1$s</string>
+    <string name="presence_weekday_at">%1$s at %2$s</string>
+    <string name="presence_date_this_year">%1$d %2$s at %3$s</string>
+    <string name="presence_date_full">%1$d %2$s %3$d at %4$s</string>
+    <string name="weekday_mon">Monday</string>
+    <string name="weekday_tue">Tuesday</string>
+    <string name="weekday_wed">Wednesday</string>
+    <string name="weekday_thu">Thursday</string>
+    <string name="weekday_fri">Friday</string>
+    <string name="weekday_sat">Saturday</string>
+    <string name="weekday_sun">Sunday</string>
+    <string name="month_jan">Jan</string>
+    <string name="month_feb">Feb</string>
+    <string name="month_mar">Mar</string>
+    <string name="month_apr">Apr</string>
+    <string name="month_may">May</string>
+    <string name="month_jun">Jun</string>
+    <string name="month_jul">Jul</string>
+    <string name="month_aug">Aug</string>
+    <string name="month_sep">Sep</string>
+    <string name="month_oct">Oct</string>
+    <string name="month_nov">Nov</string>
+    <string name="month_dec">Dec</string>
+
+    <!-- Server Configuration -->
+    <string name="server_config_title">Connect to a server</string>
+    <string name="server_config_subtitle">Enter the server you want to use</string>
+    <string name="server_url_label">Server address</string>
+    <string name="server_url_hint">example.com</string>
+    <string name="https_enabled">Use a secure connection</string>
+    <string name="save_continue">Save and continue</string>
 
-    
     <!-- Settings -->
-    <string name="change_server">Change Server</string>
-    <string name="change_server_d">Changes the FromChat instance you are connecting to. This will log you out of your account.</string>
-    <string name="logout">Logout</string>
-    <string name="materialYou">Enable Material You theming</string>
-    <string name="materialYou_d">Enable the dynamic theme based on your wallpaper. Works only on Android 12 or higher.</string>
-    <string name="theme">Theme</string>
-    <string name="as_system">As system</string>
+    <string name="change_server">Change server</string>
+    <string name="change_server_d">Connect to an alternative FromChat server and sign out.</string>
+    <string name="logout">Log out</string>
+    <string name="materialYou">Material You</string>
+    <string name="materialYou_d">Match colors to your wallpaper. Works on Android 12 and up.</string>
+    <string name="theme">Look</string>
+    <string name="as_system">Same as phone</string>
     <string name="light">Light</string>
     <string name="dark">Dark</string>
     <string name="debug_tools">Debug API</string>
     <string name="debug_tools_d">Inspect profile and DM endpoints used by the client.</string>
-    <string name="debug_status_placeholder">Status will appear here</string>
-    <string name="debug_profile_loaded">Profile loaded</string>
-    <string name="debug_load_profile">Load own profile</string>
-    <string name="debug_not_loaded">No data loaded yet</string>
-    <string name="debug_conversations_loaded">Conversations loaded</string>
-    <string name="debug_load_conversations">Load DM conversations</string>
-    <string name="debug_history_user_id_label">History user ID</string>
-    <string name="debug_invalid_user_id">Enter a valid user ID</string>
-    <string name="debug_history_loaded">DM history loaded</string>
-    <string name="debug_load_history">Load DM history</string>
-    
+
     <!-- Error Messages -->
-    <string name="error_unexpected">Unexpected error</string>
-    <string name="error_invalid_credentials">Invalid username or password</string>
-    <string name="error_connection">Connection error</string>
-    <string name="error_unknown">An unknown error occurred</string>
-    
+    <string name="error_unexpected">Something went wrong</string>
+    <string name="error_invalid_credentials">Wrong username or password</string>
+    <string name="error_connection">Couldn’t connect. Check your internet.</string>
+    <string name="error_unknown">Something went wrong. Please try again.</string>
+
     <!-- Typing Indicators -->
     <string name="typing_single">%1$s is typing…</string>
     <string name="typing_two">%1$s and %2$s are typing…</string>
     <string name="typing_many">%1$s, %2$s and %3$d more are typing…</string>
 
     <string name="more">More</string>
+    <string name="unread_count">+%1$d</string>
 </resources>

app/shared/src/commonMain/kotlin/ru/fromchat/crypto/DmCrypto.kt

@@ -5,7 +5,9 @@ import ru.fromchat.api.DmEnvelope
 import ru.fromchat.crypto.dm.DmCrypto
 
 /** Shown in the UI when [DmCiphertextCorruptedException] is caught while decrypting a DM. */
-const val CorruptedDmMessagePlaceholder = "This message is corrupted and can't be displayed."
+/** Must match [ru.fromchat.Res.string.message_corrupted] (Compose resources). */
+const val CorruptedDmMessagePlaceholder =
+    "Сообщение повреждено и не может быть отображено."
 
 /**
  * Unwrap a MEK (Message Encryption Key) using the appropriate wrapping key

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/ChatInput.kt

@@ -70,7 +70,7 @@ import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
 import ru.fromchat.api.Message
-import ru.fromchat.message_placeholder
+import ru.fromchat.*
 
 @Composable
 private fun <T> AnimatedPreviewBar(
@@ -101,6 +101,7 @@ private fun PreviewBar(
     icon: ImageVector,
     title: String,
     subtitle: String,
+    closeContentDescription: String,
     onClose: () -> Unit
 ) {
     Row(
@@ -137,7 +138,7 @@ private fun PreviewBar(
         IconButton(onClick = onClose) {
             Icon(
                 imageVector = Icons.Default.Close,
-                contentDescription = "Close",
+                contentDescription = closeContentDescription,
                 tint = MaterialTheme.colorScheme.onSurfaceVariant
             )
         }
@@ -148,6 +149,7 @@ private fun PreviewBar(
 private fun AttachmentChip(
     attachment: SelectedAttachment,
     onRemove: () -> Unit,
+    removeContentDescription: String,
     modifier: Modifier = Modifier
 ) {
     Row(
@@ -186,7 +188,7 @@ private fun AttachmentChip(
         IconButton(onClick = onRemove, modifier = Modifier.size(24.dp)) {
             Icon(
                 imageVector = Icons.Default.Close,
-                contentDescription = "Remove",
+                contentDescription = removeContentDescription,
                 modifier = Modifier.size(14.dp),
                 tint = MaterialTheme.colorScheme.onSurfaceVariant
             )
@@ -206,7 +208,8 @@ fun ChatInput(
     onClearReply: () -> Unit,
     onClearEdit: () -> Unit,
     hazeState: HazeState,
-    recipientId: Int? = null
+    recipientId: Int? = null,
+    currentUserId: Int? = null
 ) {
     val scope = rememberCoroutineScope()
     var typingJob by remember { mutableStateOf<kotlinx.coroutines.Job?>(null) }
@@ -251,6 +254,13 @@ fun ChatInput(
     }
 
     val canSend = text.isNotBlank() || attachments.isNotEmpty()
+    val cdClose = stringResource(Res.string.cd_close)
+    val cdRemove = stringResource(Res.string.cd_remove)
+    val cdPickImage = stringResource(Res.string.cd_pick_image)
+    val cdPickFile = stringResource(Res.string.cd_pick_file)
+    val cdSend = stringResource(Res.string.cd_send)
+    val corruptedShort = stringResource(Res.string.message_corrupted_short)
+    val editingTitle = stringResource(Res.string.message_editing_title)
 
     Box(
         modifier = Modifier
@@ -277,28 +287,31 @@ fun ChatInput(
         ) {
             AnimatedPreviewBar(replyTo) { replyTo ->
                 val replySubtitle = if (replyTo.isContentCorrupted) {
-                    "Corrupted message"
+                    corruptedShort
                 } else {
                     replyTo.content.take(50) + if (replyTo.content.length > 50) "..." else ""
                 }
+                val replyName = messageDisplayUsername(replyTo, currentUserId)
                 PreviewBar(
                     icon = Icons.AutoMirrored.Filled.Reply,
-                    title = "Replying to ${replyTo.username}",
+                    title = stringResource(Res.string.message_replying_to, replyName),
                     subtitle = replySubtitle,
+                    closeContentDescription = cdClose,
                     onClose = { onClearReply() }
                 )
             }
 
             AnimatedPreviewBar(editingMessage) { message ->
                 val subtitle = if (message.isContentCorrupted) {
-                    "Corrupted message"
+                    corruptedShort
                 } else {
                     message.content.take(50) + if (message.content.length > 50) "..." else ""
                 }
                 PreviewBar(
                     icon = Icons.Filled.Edit,
-                    title = "Editing message",
+                    title = editingTitle,
                     subtitle = subtitle,
+                    closeContentDescription = cdClose,
                     onClose = { onClearEdit() }
                 )
             }
@@ -318,7 +331,8 @@ fun ChatInput(
                     attachments.forEach { attachment ->
                         AttachmentChip(
                             attachment = attachment,
-                            onRemove = { attachments = attachments.filter { it.id != attachment.id } }
+                            onRemove = { attachments = attachments.filter { it.id != attachment.id } },
+                            removeContentDescription = cdRemove
                         )
                     }
                 }
@@ -332,14 +346,14 @@ fun ChatInput(
                     IconButton(onClick = { launchImagePicker() }) {
                         Icon(
                             imageVector = Icons.Default.Image,
-                            contentDescription = "Pick image",
+                            contentDescription = cdPickImage,
                             tint = MaterialTheme.colorScheme.onSurfaceVariant
                         )
                     }
                     IconButton(onClick = { launchFilePicker() }) {
                         Icon(
                             imageVector = Icons.Default.AttachFile,
-                            contentDescription = "Pick file",
+                            contentDescription = cdPickFile,
                             tint = MaterialTheme.colorScheme.onSurfaceVariant
                         )
                     }
@@ -397,7 +411,7 @@ fun ChatInput(
                                 ) {
                                     Icon(
                                         imageVector = Icons.AutoMirrored.Filled.Send,
-                                        contentDescription = "Send",
+                                        contentDescription = cdSend,
                                         tint = MaterialTheme.colorScheme.onPrimary,
                                         modifier = Modifier.size(18.dp)
                                     )

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/ChatScreen.kt

@@ -74,6 +74,7 @@ import kotlinx.serialization.json.jsonObject
 import kotlinx.serialization.json.jsonPrimitive
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
+import ru.fromchat.*
 import ru.fromchat.api.ApiClient
 import ru.fromchat.api.ProfileCache
 import ru.fromchat.api.AttachmentUploadJob
@@ -85,7 +86,6 @@ import ru.fromchat.api.UserStatusStore
 import ru.fromchat.api.WebSocketManager
 import ru.fromchat.api.WebSocketMessage
 import ru.fromchat.api.WebSocketUpdatesData
-import ru.fromchat.back
 import ru.fromchat.core.Logger
 import ru.fromchat.net.NetworkConnectivity
 import ru.fromchat.ui.ConnectingEllipsis
@@ -95,6 +95,7 @@ import ru.fromchat.ui.rememberHapticFeedback
 import ru.fromchat.ui.chat.getImageAspectRatio
 import ru.fromchat.ui.scaleOnPress
 import ru.fromchat.utils.formatLastSeen
+import ru.fromchat.utils.rememberLastSeenFormatStrings
 import kotlin.time.Clock
 
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalHazeMaterialsApi::class)
@@ -144,6 +145,11 @@ fun ChatScreen(
     val statusMap by UserStatusStore.status.collectAsState()
     val connectionStatus by ConnectionStateStore.status.collectAsState()
     val online by NetworkConnectivity.isOnline.collectAsState(initial = true)
+    val lastSeenFormat = rememberLastSeenFormatStrings()
+    val statusConnecting = stringResource(Res.string.status_connecting)
+    val statusUpdating = stringResource(Res.string.status_updating)
+    val chatGroupLabel = stringResource(Res.string.chat_group_label)
+    val cdCall = stringResource(Res.string.cd_call)
     LaunchedEffect(currentTypingUsers) {
         Logger.d("ChatScreen", "currentTypingUsers updated (from panelState): ${currentTypingUsers.map { it.username }}")
     }
@@ -413,7 +419,7 @@ fun ChatScreen(
                                     panelState.profileUserId != null -> {
                                         val userStatus = statusMap[panelState.profileUserId]
                                         val statusText = userStatus?.let {
-                                            formatLastSeen(it.online, it.lastSeen)
+                                            formatLastSeen(it.online, it.lastSeen, lastSeenFormat)
                                         }.orEmpty()
                                         if (statusText.isNotEmpty()) {
                                             "presence:$statusText"
@@ -434,12 +440,23 @@ fun ChatScreen(
                                 ) { key ->
                                     when {
                                         key == "updating" -> {
-                                            Text(
-                                                text = "Updating...",
-                                                style = MaterialTheme.typography.bodySmall,
-                                                color = MaterialTheme.colorScheme.onSurfaceVariant,
-                                                modifier = Modifier.padding(top = 2.dp)
-                                            )
+                                            val st = MaterialTheme.typography.bodySmall
+                                            val col = MaterialTheme.colorScheme.onSurfaceVariant
+                                            Row(
+                                                modifier = Modifier.padding(top = 2.dp),
+                                                verticalAlignment = Alignment.CenterVertically
+                                            ) {
+                                                Text(
+                                                    text = statusUpdating,
+                                                    style = st,
+                                                    color = col
+                                                )
+                                                ConnectingEllipsis(
+                                                    fontSize = st.fontSize,
+                                                    color = col,
+                                                    baseStyle = st
+                                                )
+                                            }
                                         }
                                         key == "connecting" -> {
                                             val st = MaterialTheme.typography.bodySmall
@@ -449,7 +466,7 @@ fun ChatScreen(
                                                 verticalAlignment = Alignment.CenterVertically
                                             ) {
                                                 Text(
-                                                    text = "Connecting",
+                                                    text = statusConnecting,
                                                     style = st,
                                                     color = col
                                                 )
@@ -477,7 +494,7 @@ fun ChatScreen(
                                         }
                                         key == "group" -> {
                                             Text(
-                                                text = "group",
+                                                text = chatGroupLabel,
                                                 style = MaterialTheme.typography.bodySmall,
                                                 color = MaterialTheme.colorScheme.onSurfaceVariant,
                                                 modifier = Modifier.padding(top = 2.dp)
@@ -486,7 +503,7 @@ fun ChatScreen(
                                         key.startsWith("members:") -> {
                                             val n = key.removePrefix("members:").toIntOrNull() ?: 0
                                             Text(
-                                                text = "$n members",
+                                                text = stringResource(Res.string.chat_members_count, n),
                                                 style = MaterialTheme.typography.bodySmall,
                                                 color = MaterialTheme.colorScheme.onSurfaceVariant,
                                                 modifier = Modifier.padding(top = 2.dp)
@@ -513,7 +530,7 @@ fun ChatScreen(
                             IconButton(onClick = { /* TODO: Handle call */ }) {
                                 Icon(
                                     imageVector = Icons.Default.Call,
-                                    contentDescription = "Call"
+                                    contentDescription = cdCall
                                 )
                             }
                         }
@@ -547,6 +564,7 @@ fun ChatScreen(
                     ChatInput(
                         text = inputText,
                         onTextChange = { inputText = it },
+                        currentUserId = currentUserId,
                         onSend = { text, attachments ->
                             if (editingMessage != null) {
                                 scope.launch {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/ImageFullscreenPreview.kt

@@ -67,8 +67,11 @@ import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.datetime.TimeZone
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
 import kotlinx.datetime.toLocalDateTime
 import ru.fromchat.api.Message
+import ru.fromchat.*
 import ru.fromchat.ui.BackHandler
 import ru.fromchat.ui.LocalSystemBarsVisibility
 import kotlin.math.abs
@@ -121,6 +124,12 @@ fun ImageFullscreenPreview(
     thumbnailBounds: Rect? = null
 ) {
     val file = message.files?.getOrNull(fileIndex) ?: return
+    val cdBack = stringResource(Res.string.back)
+    val cdMenu = stringResource(Res.string.more)
+    val labelReply = stringResource(Res.string.action_reply)
+    val labelSave = stringResource(Res.string.action_save)
+    val labelDelete = stringResource(Res.string.action_delete)
+    val headerName = messageDisplayUsername(message, currentUserId)
     val envelope = message.dmEnvelope
     val thumbnailBase64 = message.fileThumbnails?.getOrNull(fileIndex)
 
@@ -596,7 +605,7 @@ fun ImageFullscreenPreview(
                 IconButton(onClick = { dismissRequested = true }) {
                     Icon(
                         imageVector = Icons.AutoMirrored.Filled.ArrowBack,
-                        contentDescription = "Back",
+                        contentDescription = cdBack,
                         tint = Color.White
                     )
                 }
@@ -605,7 +614,7 @@ fun ImageFullscreenPreview(
                     horizontalAlignment = Alignment.CenterHorizontally
                 ) {
                     Text(
-                        text = message.username,
+                        text = headerName,
                         style = MaterialTheme.typography.titleMedium,
                         color = Color.White
                     )
@@ -620,7 +629,7 @@ fun ImageFullscreenPreview(
                     IconButton(onClick = { menuExpanded = true }) {
                         Icon(
                             imageVector = Icons.Default.MoreVert,
-                            contentDescription = "Menu",
+                            contentDescription = cdMenu,
                             tint = Color.White
                         )
                     }
@@ -634,7 +643,7 @@ fun ImageFullscreenPreview(
                                 Row(verticalAlignment = Alignment.CenterVertically) {
                                     Icon(Icons.AutoMirrored.Filled.Reply, null, tint = Color.White)
                                     Spacer(Modifier.width(8.dp))
-                                    Text("Reply", color = Color.White)
+                                    Text(labelReply, color = Color.White)
                                 }
                             },
                         onClick = {
@@ -648,7 +657,7 @@ fun ImageFullscreenPreview(
                                 Row(verticalAlignment = Alignment.CenterVertically) {
                                     Icon(Icons.Default.SaveAlt, null, tint = Color.White)
                                     Spacer(Modifier.width(8.dp))
-                                    Text("Save", color = Color.White)
+                                    Text(labelSave, color = Color.White)
                                 }
                             },
                             onClick = {
@@ -661,7 +670,7 @@ fun ImageFullscreenPreview(
                                 Row(verticalAlignment = Alignment.CenterVertically) {
                                     Icon(Icons.Default.Delete, null, tint = Color.White)
                                     Spacer(Modifier.width(8.dp))
-                                    Text("Delete", color = Color.White)
+                                    Text(labelDelete, color = Color.White)
                                 }
                             },
                         onClick = {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/MessageContextMenu.kt

@@ -46,7 +46,10 @@ import androidx.compose.ui.unit.IntSize
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.Popup
 import androidx.compose.ui.window.PopupProperties
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
 import ru.fromchat.api.Message
+import ru.fromchat.*
 import ru.fromchat.ui.scaleOnPress
 
 data class ContextMenuState(
@@ -257,6 +260,9 @@ private fun ContextMenuContent(
     val menuColor = MaterialTheme.colorScheme.surfaceContainer
     val edgePadding = 8.dp
     val itemSpacing = 2.dp
+    val labelReply = stringResource(Res.string.action_reply)
+    val labelEdit = stringResource(Res.string.action_edit)
+    val labelDelete = stringResource(Res.string.action_delete)
 
     Box(modifier = containerModifier) {
         Box(modifier = Modifier.matchParentSize().background(menuColor, menuShape))
@@ -268,20 +274,20 @@ private fun ContextMenuContent(
         ) {
             ContextMenuItem(
                 icon = Icons.AutoMirrored.Filled.Reply,
-                text = "Reply",
+                text = labelReply,
                 onClick = { onReply(message) }
             )
             if (isAuthor) {
                 ContextMenuItem(
                     icon = Icons.Default.Edit,
-                    text = "Edit",
+                    text = labelEdit,
                     onClick = { onEdit(message) }
                 )
             }
             if (isAuthor) {
                 ContextMenuItem(
                     icon = Icons.Default.Delete,
-                    text = "Delete",
+                    text = labelDelete,
                     onClick = { onDelete(message) },
                     isError = true
                 )

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/MessageDisplayName.kt

@@ -0,0 +1,25 @@
+package ru.fromchat.ui.chat
+
+import androidx.compose.runtime.Composable
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
+import ru.fromchat.api.Message
+import ru.fromchat.*
+
+private val userIdUsernamePattern = Regex("^User (\\d+)$")
+
+/**
+ * Resolves [Message.username] for display: localized «Вы», «Пользователь N», or server-provided name.
+ */
+@Composable
+fun messageDisplayUsername(message: Message, currentUserId: Int?): String {
+    if (currentUserId != null && message.user_id == currentUserId) {
+        return stringResource(Res.string.message_sender_you)
+    }
+    val m = userIdUsernamePattern.matchEntire(message.username)
+    if (m != null) {
+        val id = m.groupValues[1].toIntOrNull()
+        if (id != null) return stringResource(Res.string.user_fallback, id)
+    }
+    return message.username
+}

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/MessageItem.kt

@@ -53,7 +53,10 @@ import androidx.compose.ui.unit.sp
 import com.pr0gramm3r101.utils.conditional
 import kotlinx.datetime.TimeZone
 import kotlinx.datetime.toLocalDateTime
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
 import ru.fromchat.api.Message
+import ru.fromchat.*
 import kotlin.time.ExperimentalTime
 import kotlin.time.Instant
 
@@ -95,6 +98,10 @@ fun MessageItem(
     val formattedTime = remember(message.timestamp) {
         formatTime(message.timestamp)
     }
+    val corruptedBody = stringResource(Res.string.message_corrupted)
+    val editedSuffix = stringResource(Res.string.message_edited_suffix)
+    val displayUsername = messageDisplayUsername(message, currentUserId)
+    val replyRef = message.reply_to
 
     // No AnimatedVisibility here: visible=true still ran enter transitions for every item on first
     // composition (N messages ⇒ N concurrent animations + huge JIT), causing main-thread jank.
@@ -316,7 +323,7 @@ fun MessageItem(
                                         )
                                 ) {
                                     Text(
-                                        text = message.username,
+                                        text = displayUsername,
                                         style = MaterialTheme.typography.labelMedium,
                                         fontWeight = FontWeight.SemiBold,
                                         color = MaterialTheme.colorScheme.primary,
@@ -326,7 +333,7 @@ fun MessageItem(
                             } else {
                                 Box(modifier = usernameOutset) {
                                     Text(
-                                        text = message.username,
+                                        text = displayUsername,
                                         style = MaterialTheme.typography.labelMedium,
                                         fontWeight = FontWeight.SemiBold,
                                         color = MaterialTheme.colorScheme.primary,
@@ -348,7 +355,8 @@ fun MessageItem(
                         ) {
                             Column {
                         // Reply preview
-                        message.reply_to?.let { replyTo ->
+                        replyRef?.let { replyToMsg ->
+                            val replyName = messageDisplayUsername(replyToMsg, currentUserId)
                             Box(
                                 Modifier.padding(bottom = 4.dp, start = 6.dp, end = 6.dp)
                             ) {
@@ -379,7 +387,7 @@ fun MessageItem(
                                     ) {
                                         if (showUsername) {
                                             Text(
-                                                text = replyTo.username,
+                                                text = replyName,
                                                 style = MaterialTheme.typography.labelSmall,
                                                 fontWeight = FontWeight.SemiBold,
                                                 color = MaterialTheme.colorScheme.primary,
@@ -387,7 +395,7 @@ fun MessageItem(
                                             )
                                         }
                                         Text(
-                                            text = replyTo.content.take(50) + if (replyTo.content.length > 50) "..." else "",
+                                            text = replyToMsg.content.take(50) + if (replyToMsg.content.length > 50) "..." else "",
                                             style = MaterialTheme.typography.bodySmall,
                                             color = MaterialTheme.colorScheme.onSurfaceVariant,
                                             fontSize = 12.sp,
@@ -401,7 +409,7 @@ fun MessageItem(
                         // Attachments (images/files) or corrupted message
                         if (isCorrupted) {
                             Text(
-                                text = "_This message is corrupted and cannot be displayed.",
+                                text = corruptedBody,
                                 style = MaterialTheme.typography.bodyMedium,
                                 color = if (isAuthor) {
                                     Color.White.copy(alpha = 0.8f)
@@ -553,7 +561,7 @@ fun MessageItem(
                             if (message.is_edited) {
                                 Spacer(modifier = Modifier.width(4.dp))
                                 Text(
-                                    text = "(edited)",
+                                    text = editedSuffix,
                                     style = MaterialTheme.typography.labelSmall,
                                     fontSize = 11.sp,
                                     color = if (isAuthor) {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/PublicChatPanel.kt

@@ -18,11 +18,14 @@ import ru.fromchat.api.db.MessageCacheStore
 import ru.fromchat.core.Logger
 
 class PublicChatPanel(
-    chatName: String,
+    /** Stable cache / panel id (not localized; hardcoded in [PublicChatPanelCache]). */
+    panelKey: String,
+    /** Shown in the app bar and avatars. */
+    displayTitle: String,
     currentUserId: Int?,
     scope: CoroutineScope
 ) : ChatPanel(
-    id = "public-$chatName",
+    id = "public-$panelKey",
     currentUserId = currentUserId,
     scope = scope
 ) {
@@ -57,8 +60,8 @@ class PublicChatPanel(
     init {
         updateState {
             it.copy(
-                title = chatName,
-                titleAvatar = AvatarInfo(displayName = chatName, profilePictureUrl = null),
+                title = displayTitle,
+                titleAvatar = AvatarInfo(displayName = displayTitle, profilePictureUrl = null),
                 publicGroupMetaLoading = true,
                 publicGroupMemberCount = null
             )
@@ -82,6 +85,19 @@ class PublicChatPanel(
         }
     }
 
+    /** When locale changes, keep the same panel but refresh the visible title. */
+    fun applyDisplayTitle(title: String) {
+        updateState { s ->
+            s.copy(
+                title = title,
+                titleAvatar = AvatarInfo(
+                    displayName = title,
+                    profilePictureUrl = s.titleAvatar?.profilePictureUrl
+                )
+            )
+        }
+    }
+
     private fun handleReactionUpdate(reactionUpdate: ReactionUpdateData) {
         updateMessage(reactionUpdate.message_id) { message ->
             message.copy(reactions = reactionUpdate.reactions)

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/PublicChatPanelCache.kt

@@ -3,6 +3,7 @@ package ru.fromchat.ui.chat
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.SupervisorJob
+
 /**
  * Single retained [PublicChatPanel] for the app session (same idea as [ru.fromchat.ui.dm.DmPanelCache]).
  * Navigating away from public chat used to dispose [remember] and recreate the panel, so every open
@@ -13,13 +14,14 @@ import kotlinx.coroutines.SupervisorJob
  * collectors and [ChatPanel] state callbacks keep working after the composable is left and re-entered.
  */
 object PublicChatPanelCache {
-    private const val GENERAL_CHAT_NAME = "General Chat"
+    private const val GeneralPublicPanelKey = "general"
 
     private var supervisorJob = SupervisorJob()
     private var panelScope: CoroutineScope = CoroutineScope(supervisorJob + Dispatchers.Main.immediate)
 
     private var panel: PublicChatPanel? = null
-    private var cachedChatName: String? = null
+    private var cachedPanelKey: String? = null
+    private var cachedDisplayTitle: String? = null
     private var cachedUserId: Int? = null
 
     private fun ensureScope() {
@@ -29,25 +31,31 @@ object PublicChatPanelCache {
         }
     }
 
-    fun getOrCreateGeneralChat(currentUserId: Int?): PublicChatPanel =
-        getOrCreate(GENERAL_CHAT_NAME, currentUserId)
-
-    fun getOrCreate(chatName: String, currentUserId: Int?): PublicChatPanel {
+    /**
+     * @param displayTitle Localized title from e.g. [ru.fromchat.Res.string.public_chat].
+     */
+    fun getOrCreateGeneralChat(displayTitle: String, currentUserId: Int?): PublicChatPanel {
         ensureScope()
         if (
             panel != null &&
-            cachedChatName == chatName &&
+            cachedPanelKey == GeneralPublicPanelKey &&
             cachedUserId == currentUserId
         ) {
+            if (cachedDisplayTitle != displayTitle) {
+                cachedDisplayTitle = displayTitle
+                panel!!.applyDisplayTitle(displayTitle)
+            }
             return panel!!
         }
         panel?.destroy()
         panel = PublicChatPanel(
-            chatName = chatName,
+            panelKey = GeneralPublicPanelKey,
+            displayTitle = displayTitle,
             currentUserId = currentUserId,
             scope = panelScope
         )
-        cachedChatName = chatName
+        cachedPanelKey = GeneralPublicPanelKey
+        cachedDisplayTitle = displayTitle
         cachedUserId = currentUserId
         return panel!!
     }
@@ -55,7 +63,8 @@ object PublicChatPanelCache {
     fun clear() {
         panel?.destroy()
         panel = null
-        cachedChatName = null
+        cachedPanelKey = null
+        cachedDisplayTitle = null
         cachedUserId = null
         supervisorJob.cancel()
     }

app/shared/src/commonMain/kotlin/ru/fromchat/ui/chat/PublicChatScreen.kt

@@ -6,8 +6,11 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.remember
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
 import ru.fromchat.api.ApiClient
 import ru.fromchat.ui.isPublicChatVisible
+import ru.fromchat.*
 
 @Composable
 fun PublicChatScreen(
@@ -16,10 +19,11 @@ fun PublicChatScreen(
     animatedContentScope: AnimatedContentScope? = null
 ) {
     val currentUserId = ApiClient.user?.id
+    val publicChatTitle = stringResource(Res.string.public_chat)
 
     // Reuse one panel for the session (like DM [DmPanelCache]); avoids full reload on every visit.
-    val panel = remember(currentUserId) {
-        PublicChatPanelCache.getOrCreateGeneralChat(currentUserId)
+    val panel = remember(currentUserId, publicChatTitle) {
+        PublicChatPanelCache.getOrCreateGeneralChat(publicChatTitle, currentUserId)
     }
 
     LaunchedEffect(panel) {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/debug/DebugApiScreenContent.kt

@@ -0,0 +1,444 @@
+package ru.fromchat.ui.debug
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.BugReport
+import androidx.compose.material3.Button
+import androidx.compose.material3.DividerDefaults
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.pr0gramm3r101.utils.crypto.Base64
+import com.pr0gramm3r101.utils.settings.settings
+import kotlinx.coroutines.launch
+import ru.fromchat.api.ApiClient
+import ru.fromchat.api.SendDmFile
+import ru.fromchat.crypto.IdentityKeyManager
+import ru.fromchat.crypto.decryptEnvelope
+import ru.fromchat.crypto.transport.TransportCrypto
+import ru.fromchat.ui.LocalNavController
+
+/**
+ * English-only copy: the Debug API screen is not for end users; strings are not in compose
+ * resources (see project i18n rules).
+ */
+private object DebugScreenText {
+    const val ScreenTitle = "Debug API"
+    const val NavSection = "Quick navigation"
+    const val OpenProfile = "Profile screen"
+    const val OpenProfileDesc = "Your profile with chat and link actions"
+    const val OpenDmUser2 = "DM (user 2)"
+    const val OpenDmUser2Desc = "Open a direct message with user ID 2"
+    const val BugIconCd = "Debug"
+    const val StatusPlaceholder = "Status will appear here"
+    const val UnknownError = "Something went wrong. Please try again."
+    const val ProfileLoaded = "Profile loaded"
+    const val LoadOwnProfile = "Load own profile"
+    const val NotLoaded = "No data loaded yet"
+    const val ConversationsLoaded = "Conversations loaded"
+    const val LoadConversations = "Load DM conversations"
+    const val HistoryUserIdLabel = "History user ID"
+    const val InvalidUserId = "Enter a valid user ID"
+    const val HistoryLoaded = "DM history loaded"
+    const val LoadHistory = "Load DM history"
+    const val DmSendTest = "DM send test"
+    const val RecipientUserId = "Recipient user ID"
+    const val MessageText = "Message text"
+    const val InvalidRecipient = "Enter a valid recipient ID"
+    const val EnterMessage = "Enter a message to send"
+    const val DmSent = "DM sent"
+    const val DmSendFailed = "Failed to send DM"
+    const val SendDm = "Send DM"
+    const val Phase1FileProtocol = "Phase 1: file protocol test"
+    const val SendTestFileBtn = "Send test.txt to user 2"
+    const val ProtocolSent = "Protocol test file sent to user 2"
+    const val ProtocolFailed = "Failed to send protocol test file"
+    const val DecryptTest = "DM decryption test"
+    const val DecryptFirstDm = "Decrypt first DM"
+    const val NoMessages = "No messages"
+    const val CurrentUserMissing = "Current user ID not found"
+    const val DecryptedPrefix = "Decrypted: "
+    const val DecryptSuccess = "Decryption successful"
+    const val DecryptFailedPrefix = "Decryption failed: "
+    const val ErrorLabel = "Error: "
+    const val NoDecryptedYet = "No decrypted message yet"
+    const val OpenAction = "Open"
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun DebugApiScreenContent() {
+    val navController = LocalNavController.current
+    val scope = rememberCoroutineScope()
+    val scrollState = rememberScrollState()
+    val currentUserId = ApiClient.user?.id ?: 0
+
+    var statusMessage by rememberSaveable { mutableStateOf("") }
+    var profileResult by rememberSaveable { mutableStateOf<String?>(null) }
+    var conversationsResult by rememberSaveable { mutableStateOf<String?>(null) }
+    var historyResult by rememberSaveable { mutableStateOf<String?>(null) }
+    var historyUserId by rememberSaveable { mutableStateOf("0") }
+    var decryptedMessage by rememberSaveable { mutableStateOf<String?>(null) }
+    var sendRecipientId by rememberSaveable { mutableStateOf("") }
+    var sendMessageText by rememberSaveable { mutableStateOf("") }
+
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                navigationIcon = {
+                    IconButton(onClick = { navController.navigateUp() }) {
+                        Icon(imageVector = Icons.AutoMirrored.Filled.ArrowBack, contentDescription = null)
+                    }
+                },
+                title = {
+                    Text(text = DebugScreenText.ScreenTitle)
+                },
+                actions = {
+                    IconButton(onClick = {}) {
+                        Icon(
+                            imageVector = Icons.Filled.BugReport,
+                            contentDescription = DebugScreenText.BugIconCd
+                        )
+                    }
+                }
+            )
+        }
+    ) { innerPadding ->
+        Column(
+            modifier = Modifier
+                .padding(innerPadding)
+                .verticalScroll(scrollState)
+                .padding(16.dp),
+            verticalArrangement = Arrangement.spacedBy(12.dp)
+        ) {
+            Text(
+                text = DebugScreenText.NavSection,
+                style = MaterialTheme.typography.titleMedium,
+                modifier = Modifier.fillMaxWidth()
+            )
+            Text(
+                text = DebugScreenText.OpenProfile,
+                style = MaterialTheme.typography.titleSmall,
+                modifier = Modifier.fillMaxWidth()
+            )
+            Text(
+                text = DebugScreenText.OpenProfileDesc,
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.fillMaxWidth()
+            )
+            Button(
+                onClick = {
+                    if (currentUserId != 0) {
+                        navController.navigate("profile/$currentUserId")
+                    }
+                },
+                enabled = currentUserId != 0,
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(text = DebugScreenText.OpenAction)
+            }
+            Text(
+                text = DebugScreenText.OpenDmUser2,
+                style = MaterialTheme.typography.titleSmall,
+                modifier = Modifier.fillMaxWidth()
+            )
+            Text(
+                text = DebugScreenText.OpenDmUser2Desc,
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.fillMaxWidth()
+            )
+            Button(
+                onClick = { navController.navigate("dm/2") },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(text = DebugScreenText.OpenAction)
+            }
+
+            HorizontalDivider(
+                modifier = Modifier.padding(vertical = 8.dp),
+                thickness = DividerDefaults.Thickness,
+                color = DividerDefaults.color
+            )
+
+            Text(
+                text = statusMessage.takeIf { it.isNotBlank() } ?: DebugScreenText.StatusPlaceholder,
+                style = MaterialTheme.typography.bodyMedium
+            )
+
+            Button(
+                onClick = {
+                    scope.launch {
+                        runCatching { ApiClient.getOwnProfile() }
+                            .onSuccess {
+                                profileResult = ApiClient.json.encodeToString(it)
+                                statusMessage = DebugScreenText.ProfileLoaded
+                            }
+                            .onFailure {
+                                statusMessage = it.message ?: DebugScreenText.UnknownError
+                            }
+                    }
+                },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(text = DebugScreenText.LoadOwnProfile)
+            }
+
+            Text(
+                text = profileResult ?: DebugScreenText.NotLoaded,
+                style = MaterialTheme.typography.bodySmall,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            Button(
+                onClick = {
+                    scope.launch {
+                        runCatching { ApiClient.getDmConversations() }
+                            .onSuccess {
+                                conversationsResult = ApiClient.json.encodeToString(it)
+                                statusMessage = DebugScreenText.ConversationsLoaded
+                            }
+                            .onFailure {
+                                statusMessage = it.message ?: DebugScreenText.UnknownError
+                            }
+                    }
+                },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(text = DebugScreenText.LoadConversations)
+            }
+
+            Text(
+                text = conversationsResult ?: DebugScreenText.NotLoaded,
+                style = MaterialTheme.typography.bodySmall,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            OutlinedTextField(
+                value = historyUserId,
+                onValueChange = { historyUserId = it },
+                label = { Text(text = DebugScreenText.HistoryUserIdLabel) },
+                singleLine = true,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            Button(
+                onClick = {
+                    val userId = historyUserId.toIntOrNull()
+                    if (userId == null) {
+                        statusMessage = DebugScreenText.InvalidUserId
+                        return@Button
+                    }
+
+                    scope.launch {
+                        runCatching { ApiClient.getDmHistory(userId) }
+                            .onSuccess {
+                                historyResult = ApiClient.json.encodeToString(it)
+                                statusMessage = DebugScreenText.HistoryLoaded
+                            }
+                            .onFailure {
+                                statusMessage = it.message ?: DebugScreenText.UnknownError
+                            }
+                    }
+                },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(text = DebugScreenText.LoadHistory)
+            }
+
+            Text(
+                text = historyResult ?: DebugScreenText.NotLoaded,
+                style = MaterialTheme.typography.bodySmall,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            HorizontalDivider(
+                modifier = Modifier.padding(vertical = 8.dp),
+                thickness = DividerDefaults.Thickness,
+                color = DividerDefaults.color
+            )
+
+            Text(
+                text = DebugScreenText.DmSendTest,
+                style = MaterialTheme.typography.titleMedium,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            OutlinedTextField(
+                value = sendRecipientId,
+                onValueChange = { sendRecipientId = it },
+                label = { Text(text = DebugScreenText.RecipientUserId) },
+                singleLine = true,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            OutlinedTextField(
+                value = sendMessageText,
+                onValueChange = { sendMessageText = it },
+                label = { Text(text = DebugScreenText.MessageText) },
+                singleLine = false,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            Button(
+                onClick = {
+                    val userId = sendRecipientId.toIntOrNull()
+                    if (userId == null) {
+                        statusMessage = DebugScreenText.InvalidRecipient
+                        return@Button
+                    }
+                    if (sendMessageText.isBlank()) {
+                        statusMessage = DebugScreenText.EnterMessage
+                        return@Button
+                    }
+
+                    scope.launch {
+                        runCatching {
+                            ApiClient.sendDm(
+                                recipientId = userId,
+                                plaintext = sendMessageText.trim(),
+                                replyToId = null
+                            )
+                        }.onSuccess {
+                            statusMessage = DebugScreenText.DmSent
+                        }.onFailure {
+                            statusMessage = it.message ?: DebugScreenText.DmSendFailed
+                        }
+                    }
+                },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(text = DebugScreenText.SendDm)
+            }
+
+            Text(
+                text = DebugScreenText.Phase1FileProtocol,
+                style = MaterialTheme.typography.titleMedium,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            Button(
+                onClick = {
+                    scope.launch {
+                        runCatching {
+                            val fileBytes = "test file".encodeToByteArray()
+                            val transportKey = ApiClient.getTransportPublicKey()
+                            val (msgCipher, secret) = TransportCrypto.encryptWithTransportKeyWithEphemeralSecret(
+                                plaintext = "test file",
+                                transportPublicKeyB64 = transportKey.publicKeyB64
+                            )
+                            try {
+                                val transportBlob = TransportCrypto.encryptFileForTransport(
+                                    fileBytes = fileBytes,
+                                    transportPublicKeyB64 = transportKey.publicKeyB64,
+                                    ephemeralSecretKey = secret
+                                )
+                                val sendFile = SendDmFile(
+                                    encryptedFileDataB64 = Base64.encode(transportBlob),
+                                    filename = "test.txt",
+                                    fileSize = fileBytes.size.toLong()
+                                )
+                                ApiClient.sendDm(
+                                    recipientId = 2,
+                                    plaintext = "test file",
+                                    transportFiles = listOf(sendFile),
+                                    preparedTransport = msgCipher
+                                )
+                            } finally {
+                                secret.fill(0)
+                            }
+                        }.onSuccess {
+                            statusMessage = DebugScreenText.ProtocolSent
+                        }.onFailure {
+                            statusMessage = it.message ?: DebugScreenText.ProtocolFailed
+                        }
+                    }
+                },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(text = DebugScreenText.SendTestFileBtn)
+            }
+
+            HorizontalDivider(
+                modifier = Modifier.padding(vertical = 8.dp),
+                thickness = DividerDefaults.Thickness,
+                color = DividerDefaults.color
+            )
+
+            Text(
+                text = DebugScreenText.DecryptTest,
+                style = MaterialTheme.typography.titleMedium,
+                modifier = Modifier.fillMaxWidth()
+            )
+
+            Button(
+                onClick = {
+                    val userId = historyUserId.toIntOrNull()
+                    if (userId == null) {
+                        statusMessage = DebugScreenText.InvalidUserId
+                        return@Button
+                    }
+
+                    scope.launch {
+                        try {
+                            IdentityKeyManager.restoreFromLocal()
+
+                            val history = ApiClient.getDmHistory(userId)
+                            if (history.messages.isEmpty()) {
+                                statusMessage = DebugScreenText.NoMessages
+                                decryptedMessage = null
+                                return@launch
+                            }
+
+                            val currentId = settings.getInt("current_user_id", 0)
+                            if (currentId == 0) {
+                                statusMessage = DebugScreenText.CurrentUserMissing
+                                decryptedMessage = null
+                                return@launch
+                            }
+
+                            val firstEnvelope = history.messages.first()
+                            val plaintext = decryptEnvelope(firstEnvelope, currentId)
+                            decryptedMessage = DebugScreenText.DecryptedPrefix + plaintext
+                            statusMessage = DebugScreenText.DecryptSuccess
+                        } catch (e: Exception) {
+                            statusMessage = DebugScreenText.DecryptFailedPrefix + (e.message.orEmpty())
+                            decryptedMessage =
+                                DebugScreenText.ErrorLabel + (e.message.orEmpty()) + "\n" + e.stackTraceToString()
+                        }
+                    }
+                },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Text(text = DebugScreenText.DecryptFirstDm)
+            }
+
+            Text(
+                text = decryptedMessage ?: DebugScreenText.NoDecryptedYet,
+                style = MaterialTheme.typography.bodySmall,
+                modifier = Modifier.fillMaxWidth()
+            )
+        }
+    }
+}

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/ChatsTab.kt

@@ -41,15 +41,14 @@ import androidx.compose.ui.unit.dp
 import coil3.compose.AsyncImage
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
+import ru.fromchat.*
 import ru.fromchat.api.ApiClient
 import ru.fromchat.api.ConnectionStateStore
 import ru.fromchat.api.ConnectionStatus
 import ru.fromchat.api.ProfileCache
 import ru.fromchat.api.db.CachedConversation
 import ru.fromchat.api.db.MessageCacheStore
-import ru.fromchat.chat_last_mesaage
 import ru.fromchat.net.NetworkConnectivity
-import ru.fromchat.public_chat
 import ru.fromchat.ui.ConnectingEllipsis
 import ru.fromchat.ui.LocalNavController
 import ru.fromchat.ui.branding.FromChatBrandTitle
@@ -119,6 +118,10 @@ fun ChatsTab() {
         else -> "fromchat"
     }
 
+    val connectingTitle = stringResource(Res.string.status_connecting)
+    val updatingTitle = stringResource(Res.string.status_updating)
+    val brandTitle = stringResource(Res.string.app_name)
+
     Scaffold(
         topBar = {
             TopAppBar(
@@ -162,7 +165,7 @@ fun ChatsTab() {
                                             horizontalArrangement = Arrangement.Start
                                         ) {
                                             Text(
-                                                text = "Connecting",
+                                                text = connectingTitle,
                                                 style = style,
                                                 color = color,
                                                 maxLines = 1,
@@ -176,16 +179,29 @@ fun ChatsTab() {
                                         }
                                     }
                                     "updating" -> {
-                                        Text(
+                                        val style = MaterialTheme.typography.titleLarge
+                                        val color = MaterialTheme.colorScheme.onSurface
+                                        Row(
                                             modifier = Modifier.fillMaxWidth(),
-                                            text = "Updating...",
-                                            style = MaterialTheme.typography.titleLarge,
-                                            maxLines = 1,
-                                            overflow = TextOverflow.Ellipsis
-                                        )
+                                            verticalAlignment = Alignment.CenterVertically,
+                                            horizontalArrangement = Arrangement.Start
+                                        ) {
+                                            Text(
+                                                text = updatingTitle,
+                                                style = style,
+                                                color = color,
+                                                maxLines = 1,
+                                                overflow = TextOverflow.Ellipsis
+                                            )
+                                            ConnectingEllipsis(
+                                                fontSize = style.fontSize,
+                                                color = color,
+                                                baseStyle = style
+                                            )
+                                        }
                                     }
                                     else -> {
-                                        FromChatBrandTitle(text = "FromChat")
+                                        FromChatBrandTitle(text = brandTitle)
                                     }
                                 }
                             }
@@ -233,7 +249,9 @@ fun ChatsTab() {
                 val avatarUrl = cached?.profilePicture
                 val peerTitle = cached?.displayName?.takeIf { it.isNotBlank() }
                     ?: cached?.username?.takeIf { it.isNotBlank() }
-                    ?: conv.displayName.ifBlank { "User ${conv.otherUserId}" }
+                    ?: conv.displayName.ifBlank {
+                        stringResource(Res.string.user_fallback, conv.otherUserId)
+                    }
                 val preview = conv.lastMessagePreview?.trim().orEmpty()
                 ListItem(
                     leadingContent = {
@@ -264,7 +282,7 @@ fun ChatsTab() {
                     },
                     trailingContent = {
                         if (conv.unreadCount > 0) {
-                            Text("+${conv.unreadCount}")
+                            Text(stringResource(Res.string.unread_count, conv.unreadCount))
                         }
                     },
                     modifier = Modifier.clickable {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/MainScreen.kt

@@ -25,11 +25,8 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
+import ru.fromchat.*
 import ru.fromchat.api.ApiClient
-import ru.fromchat.chats
-import ru.fromchat.coming_soon
-import ru.fromchat.contacts
-import ru.fromchat.settings
 import ru.fromchat.utils.exclude
 import ru.fromchat.ui.profile.ProfileScreen
 
@@ -62,7 +59,7 @@ fun MainScreen(onLogout: () -> Unit = {}) {
                 NavigationBarItem(
                     selected = selectedTab == "profile",
                     onClick = { selectedTab = "profile" },
-                    label = { Text("Profile") },
+                    label = { Text(stringResource(Res.string.profile)) },
                     icon = { Icon(Icons.Filled.Person, contentDescription = null) }
                 )
             }

app/shared/src/commonMain/kotlin/ru/fromchat/ui/main/SettingsTab.kt

@@ -48,6 +48,7 @@ import com.pr0gramm3r101.utils.materialYouAvailable
 import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
+import ru.fromchat.*
 import ru.fromchat.about
 import ru.fromchat.api.ApiClient
 import ru.fromchat.api.WebSocketManager
@@ -203,8 +204,8 @@ fun SettingsTab(
                     )
 
                     ListItem(
-                        headline = "Debug API",
-                        supportingText = "Inspect profile and DM endpoints used by the client.",
+                        headline = stringResource(Res.string.debug_tools),
+                        supportingText = stringResource(Res.string.debug_tools_d),
                         onClick = {
                             navController.navigate("debug")
                         },
@@ -216,31 +217,6 @@ fun SettingsTab(
                         }
                     )
 
-                    val currentUserId = ApiClient.user?.id ?: 0
-                    ListItem(
-                        headline = "Profile screen",
-                        supportingText = "Show your profile with chat/link actions",
-                        onClick = {
-                            if (currentUserId != 0) {
-                                navController.navigate("profile/$currentUserId")
-                            }
-                        },
-                        divider = true,
-                        dividerColor = MaterialTheme.colorScheme.surface,
-                        dividerThickness = 2.dp
-                    )
-
-                    ListItem(
-                        headline = "DM screen (user 2)",
-                        supportingText = "Open DM flow with another user",
-                        onClick = {
-                            navController.navigate("dm/2")
-                        },
-                        divider = true,
-                        dividerColor = MaterialTheme.colorScheme.surface,
-                        dividerThickness = 2.dp
-                    )
-
                     ListItem(
                         headline = stringResource(Res.string.logout),
                         leadingContent = {

app/shared/src/commonMain/kotlin/ru/fromchat/ui/profile/ProfileScreen.kt

@@ -68,6 +68,9 @@ import com.pr0gramm3r101.components.ListItem
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
+import ru.fromchat.*
 import ru.fromchat.api.ApiClient
 import ru.fromchat.api.ProfileCache
 import ru.fromchat.api.UserProfile
@@ -76,11 +79,15 @@ import ru.fromchat.ui.chat.Avatar
 import ru.fromchat.ui.chat.publicChatProfileSharedAvatarKey
 import ru.fromchat.ui.scaleOnPress
 
+private sealed interface ProfileLoadError {
+    data object Generic : ProfileLoadError
+    data class Message(val text: String) : ProfileLoadError
+}
+
 private data class ProfileUiState(
     val profile: UserProfile? = null,
     val isLoading: Boolean = true,
-    val error: String? = null,
-    val linkStatus: String? = null
+    val error: ProfileLoadError? = null
 )
 
 private val profileActionCardPressSpring = spring<Float>(
@@ -109,6 +116,21 @@ fun ProfileScreen(
 ) {
     val clipboardManager: ClipboardManager = LocalClipboardManager.current
     val navController = LocalNavController.current
+    var linkCopied by remember { mutableStateOf(false) }
+    val profileTitle = stringResource(Res.string.profile_title)
+    val cdBack = stringResource(Res.string.back)
+    val profileLoadFailed = stringResource(Res.string.profile_load_failed)
+    val labelSettings = stringResource(Res.string.action_open_settings)
+    val labelChat = stringResource(Res.string.action_chat)
+    val labelLink = stringResource(Res.string.action_copy_link)
+    val linkCopiedText = stringResource(Res.string.link_copied)
+    val detailsTitle = stringResource(Res.string.profile_details_category)
+    val headlineUsername = stringResource(Res.string.profile_headline_username)
+    val headlineMemberSince = stringResource(Res.string.profile_headline_member_since)
+    val headlineBio = stringResource(Res.string.profile_headline_bio)
+    val headlineVerification = stringResource(Res.string.profile_headline_verification)
+    val verifiedSupport = stringResource(Res.string.profile_verified_support)
+    val verifyPromptSupport = stringResource(Res.string.profile_verify_prompt_support)
     val hideBackButton = navController.currentDestination?.route == "chat"
     val targetUserId = userId.takeIf { it != null && it > 0 }
     val ownUserId = ApiClient.user?.id?.takeIf { it > 0 }
@@ -142,7 +164,7 @@ fun ProfileScreen(
                     state = latestUi.copy(
                         profile = null,
                         isLoading = false,
-                        error = "Unable to load profile"
+                        error = ProfileLoadError.Generic
                     )
                     return@onSuccess
                 }
@@ -154,7 +176,8 @@ fun ProfileScreen(
                 val fallback = fallbackId?.let { ProfileCache.get(it) }
                 state = latestUi.copy(
                     error = if (latestUi.profile == null && fallback == null) {
-                        err.message ?: "Unable to load profile"
+                        err.message?.takeIf { it.isNotBlank() }?.let { ProfileLoadError.Message(it) }
+                            ?: ProfileLoadError.Generic
                     } else {
                         null
                     },
@@ -171,7 +194,7 @@ fun ProfileScreen(
         modifier = modifier.nestedScroll(scrollBehavior.nestedScrollConnection),
         topBar = {
             MediumTopAppBar(
-                title = { Text("Profile") },
+                title = { Text(profileTitle) },
                 navigationIcon = {
                     if (!hideBackButton) {
                         Box(
@@ -182,7 +205,7 @@ fun ProfileScreen(
                         ) {
                             Icon(
                                 imageVector = Icons.AutoMirrored.Filled.ArrowBack,
-                                contentDescription = "Back",
+                                contentDescription = cdBack,
                                 modifier = Modifier.size(24.dp)
                             )
                         }
@@ -195,7 +218,7 @@ fun ProfileScreen(
         Box(
             modifier = Modifier.fillMaxSize()
         ) {
-            val errorMessage = state.error
+            val loadError = state.error
             val profile = state.profile
             val displayName = profile?.displayName?.takeIf { it.isNotBlank() }
                 ?: profile?.username?.takeIf { it.isNotBlank() }
@@ -280,9 +303,13 @@ fun ProfileScreen(
                     state.isLoading -> {
                         CircularProgressIndicator(modifier = Modifier.padding(top = 24.dp))
                     }
-                    errorMessage != null -> {
+                    loadError != null -> {
+                        val errText = when (loadError) {
+                            ProfileLoadError.Generic -> profileLoadFailed
+                            is ProfileLoadError.Message -> loadError.text
+                        }
                         Text(
-                            text = errorMessage,
+                            text = errText,
                             color = MaterialTheme.colorScheme.error,
                             modifier = Modifier.padding(top = 24.dp)
                         )
@@ -301,7 +328,8 @@ fun ProfileScreen(
                             }
                         val scope = rememberCoroutineScope()
 
-                        val verificationLabel = if (profile.verified == true) "Verified account" else "Click to verify"
+                        val verificationLabel =
+                            if (profile.verified == true) verifiedSupport else verifyPromptSupport
                         val isOwnProfile = ApiClient.user?.id == profile.id
 
                         Row(
@@ -336,7 +364,7 @@ fun ProfileScreen(
                             val primarySource = remember { MutableInteractionSource() }
                             val primaryClick: () -> Unit
                             val primaryIcon = if (isOwnProfile) Icons.Filled.Settings else Icons.AutoMirrored.Filled.Chat
-                            val primaryLabel = if (isOwnProfile) "Settings" else "Chat"
+                            val primaryLabel = if (isOwnProfile) labelSettings else labelChat
 
                             primaryClick = if (isOwnProfile) {
                                 onOpenSettings
@@ -404,7 +432,7 @@ fun ProfileScreen(
                                             indication = LocalIndication.current,
                                             onClick = {
                                                 clipboardManager.setText(AnnotatedString(profileLink))
-                                                state = state.copy(linkStatus = "Link copied!")
+                                                linkCopied = true
                                             }
                                         ),
                                     contentAlignment = Alignment.Center
@@ -420,7 +448,7 @@ fun ProfileScreen(
                                         )
                                         Spacer(modifier = Modifier.height(6.dp))
                                         Text(
-                                            text = "Link",
+                                            text = labelLink,
                                             style = MaterialTheme.typography.bodyMedium
                                         )
                                     }
@@ -428,10 +456,10 @@ fun ProfileScreen(
                             }
                         }
 
-                        state.linkStatus?.let { status ->
+                        if (linkCopied) {
                             Spacer(modifier = Modifier.height(4.dp))
                             Text(
-                                text = status,
+                                text = linkCopiedText,
                                 style = MaterialTheme.typography.bodySmall,
                                 color = MaterialTheme.colorScheme.primary
                             )
@@ -450,10 +478,10 @@ fun ProfileScreen(
                                 showDetailsBio ||
                                 showDetailsVerify
                         ) {
-                            Category(Modifier.padding(top = 16.dp), title = "Details") {
+                            Category(Modifier.padding(top = 16.dp), title = detailsTitle) {
                                 if (showDetailsUsername) {
                                     ListItem(
-                                        headline = "Username",
+                                        headline = headlineUsername,
                                         supportingText = profile.username,
                                         divider = true,
                                         dividerColor = CategoryDefaults.dividerColor,
@@ -472,7 +500,7 @@ fun ProfileScreen(
                                 }
                                 if (showDetailsMemberSince) {
                                     ListItem(
-                                        headline = "Member since",
+                                        headline = headlineMemberSince,
                                         supportingText = profile.createdAt,
                                         divider = true,
                                         dividerColor = CategoryDefaults.dividerColor,
@@ -491,7 +519,7 @@ fun ProfileScreen(
                                 }
                                 if (showDetailsBio) {
                                     ListItem(
-                                        headline = "Bio",
+                                        headline = headlineBio,
                                         supportingText = profile.bio,
                                         divider = true,
                                         dividerColor = CategoryDefaults.dividerColor,
@@ -522,7 +550,7 @@ fun ProfileScreen(
                                     }
 
                                     ListItem(
-                                        headline = "Verification",
+                                        headline = headlineVerification,
                                         supportingText = verificationLabel,
                                         leadingContent = {
                                             Icon(

app/shared/src/commonMain/kotlin/ru/fromchat/ui/profile/StatusBadge.kt

@@ -20,6 +20,9 @@ import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
+import ru.fromchat.*
 import ru.fromchat.api.ApiClient
 
 @Composable
@@ -30,6 +33,8 @@ fun StatusBadge(
     size: Dp = 20.dp
 ) {
     var isSimilarToVerified by remember(userId, verified) { mutableStateOf(false) }
+    val cdVerified = stringResource(Res.string.cd_verified_account)
+    val cdSimilar = stringResource(Res.string.cd_similar_verified)
 
     LaunchedEffect(verified, userId, ApiClient.token) {
         if (verified == true) {
@@ -49,18 +54,18 @@ fun StatusBadge(
     when {
         verified == true -> Icon(
             imageVector = Icons.Filled.Verified,
-            contentDescription = "Verified account",
+            contentDescription = cdVerified,
             modifier = modifier
                 .size(size)
-                .semantics { contentDescription = "Verified account" },
+                .semantics { contentDescription = cdVerified },
             tint = MaterialTheme.colorScheme.primary
         )
         isSimilarToVerified -> Icon(
             imageVector = Icons.Filled.Warning,
-            contentDescription = "Similar to verified account",
+            contentDescription = cdSimilar,
             modifier = modifier
                 .size(size)
-                .semantics { contentDescription = "Similar to verified account" },
+                .semantics { contentDescription = cdSimilar },
             tint = Color(0xFFFFA000)
         )
         else -> {}

app/shared/src/commonMain/kotlin/ru/fromchat/ui/profile/VerifyButton.kt

@@ -13,7 +13,10 @@ import androidx.compose.runtime.setValue
 import androidx.compose.foundation.layout.size
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
+import org.jetbrains.compose.resources.stringResource
 import kotlinx.coroutines.Dispatchers
+import ru.fromchat.Res
+import ru.fromchat.*
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import ru.fromchat.api.ApiClient
@@ -29,6 +32,8 @@ fun VerifyButton(
 
     var isVerifying by remember { mutableStateOf(false) }
     val scope = rememberCoroutineScope()
+    val labelVerify = stringResource(Res.string.verify)
+    val labelUnverify = stringResource(Res.string.unverify)
 
     Button(
         onClick = {
@@ -53,7 +58,7 @@ fun VerifyButton(
             )
         } else {
             Text(
-                text = if (verified) "Unverify" else "Verify"
+                text = if (verified) labelUnverify else labelVerify
             )
         }
     }

app/shared/src/commonMain/kotlin/ru/fromchat/ui/setup/ServerConfigScreen.kt

@@ -43,16 +43,11 @@ import com.pr0gramm3r101.utils.navigateAndWipeBackStack
 import kotlinx.coroutines.launch
 import org.jetbrains.compose.resources.stringResource
 import ru.fromchat.Res
+import ru.fromchat.*
 import ru.fromchat.api.ApiClient
 import ru.fromchat.api.WebSocketManager
-import ru.fromchat.back
 import ru.fromchat.core.ServerConfigData
 import ru.fromchat.core.config.Config
-import ru.fromchat.https_enabled
-import ru.fromchat.save_continue
-import ru.fromchat.server_config_subtitle
-import ru.fromchat.server_config_title
-import ru.fromchat.server_url_label
 import ru.fromchat.ui.LocalNavController
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -62,7 +57,7 @@ fun ServerConfigScreen() {
     val scrollBehavior = TopAppBarDefaults.pinnedScrollBehavior(rememberTopAppBarState())
     
     // Load existing config if available
-    var serverUrl by remember { mutableStateOf("fromchat.ru") }
+    var serverUrl by remember { mutableStateOf("") }
     var httpsEnabled by remember { mutableStateOf(true) }
     
     LaunchedEffect(Unit) {
@@ -123,7 +118,7 @@ fun ServerConfigScreen() {
                 value = serverUrl,
                 onValueChange = { serverUrl = it },
                 label = { Text(stringResource(Res.string.server_url_label)) },
-                placeholder = { Text("fromchat.ru") },
+                placeholder = { Text(stringResource(Res.string.server_url_hint)) },
                 modifier = Modifier.fillMaxWidth(),
                 singleLine = true
             )

app/shared/src/commonMain/kotlin/ru/fromchat/utils/LastSeenFormat.kt

@@ -0,0 +1,135 @@
+package ru.fromchat.utils
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import kotlinx.datetime.DatePeriod
+import kotlinx.datetime.DayOfWeek
+import kotlinx.datetime.Instant
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.minus
+import kotlinx.datetime.toLocalDateTime
+import org.jetbrains.compose.resources.stringResource
+import ru.fromchat.Res
+import ru.fromchat.*
+import kotlin.time.Clock
+import kotlin.time.ExperimentalTime
+
+private fun formatFromXmlTemplate(template: String, vararg args: Any): String {
+    var result = template
+    args.forEachIndexed { index, arg ->
+        val n = index + 1
+        val text = arg.toString()
+        result = result.replace("%${n}\$s", text).replace("%${n}\$d", text)
+    }
+    return result
+}
+
+data class LastSeenFormatStrings(
+    val online: String,
+    val recently: String,
+    val todayAt: String,
+    val yesterdayAt: String,
+    val weekdayAt: String,
+    val dateThisYear: String,
+    val dateFull: String,
+    val weekdayLabel: (DayOfWeek) -> String,
+    val monthShort: (Int) -> String,
+)
+
+@Composable
+fun rememberLastSeenFormatStrings(): LastSeenFormatStrings {
+    val online = stringResource(Res.string.presence_online)
+    val recently = stringResource(Res.string.presence_recently)
+    val todayAt = stringResource(Res.string.presence_today_at)
+    val yesterdayAt = stringResource(Res.string.presence_yesterday_at)
+    val weekdayAt = stringResource(Res.string.presence_weekday_at)
+    val dateThisYear = stringResource(Res.string.presence_date_this_year)
+    val dateFull = stringResource(Res.string.presence_date_full)
+    val mon = stringResource(Res.string.weekday_mon)
+    val tue = stringResource(Res.string.weekday_tue)
+    val wed = stringResource(Res.string.weekday_wed)
+    val thu = stringResource(Res.string.weekday_thu)
+    val fri = stringResource(Res.string.weekday_fri)
+    val sat = stringResource(Res.string.weekday_sat)
+    val sun = stringResource(Res.string.weekday_sun)
+    val mJan = stringResource(Res.string.month_jan)
+    val mFeb = stringResource(Res.string.month_feb)
+    val mMar = stringResource(Res.string.month_mar)
+    val mApr = stringResource(Res.string.month_apr)
+    val mMay = stringResource(Res.string.month_may)
+    val mJun = stringResource(Res.string.month_jun)
+    val mJul = stringResource(Res.string.month_jul)
+    val mAug = stringResource(Res.string.month_aug)
+    val mSep = stringResource(Res.string.month_sep)
+    val mOct = stringResource(Res.string.month_oct)
+    val mNov = stringResource(Res.string.month_nov)
+    val mDec = stringResource(Res.string.month_dec)
+    return remember(
+        online, recently, todayAt, yesterdayAt, weekdayAt, dateThisYear, dateFull,
+        mon, tue, wed, thu, fri, sat, sun,
+        mJan, mFeb, mMar, mApr, mMay, mJun, mJul, mAug, mSep, mOct, mNov, mDec
+    ) {
+        val months = listOf(mJan, mFeb, mMar, mApr, mMay, mJun, mJul, mAug, mSep, mOct, mNov, mDec)
+        LastSeenFormatStrings(
+            online = online,
+            recently = recently,
+            todayAt = todayAt,
+            yesterdayAt = yesterdayAt,
+            weekdayAt = weekdayAt,
+            dateThisYear = dateThisYear,
+            dateFull = dateFull,
+            weekdayLabel = { d ->
+                when (d) {
+                    DayOfWeek.MONDAY -> mon
+                    DayOfWeek.TUESDAY -> tue
+                    DayOfWeek.WEDNESDAY -> wed
+                    DayOfWeek.THURSDAY -> thu
+                    DayOfWeek.FRIDAY -> fri
+                    DayOfWeek.SATURDAY -> sat
+                    DayOfWeek.SUNDAY -> sun
+                }
+            },
+            monthShort = { monthNumber -> months.getOrElse(monthNumber - 1) { "" } },
+        )
+    }
+}
+
+/**
+ * Readable last-seen line in local time (24h), using strings from [rememberLastSeenFormatStrings].
+ */
+@OptIn(ExperimentalTime::class)
+fun formatLastSeen(online: Boolean, lastSeenIso: String?, s: LastSeenFormatStrings): String {
+    if (online) return s.online
+    val iso = lastSeenIso ?: return ""
+    val instant = runCatching { Instant.parse(iso) }.getOrNull() ?: return s.recently
+
+    val timeZone = TimeZone.currentSystemDefault()
+    val lastLocal = instant.toLocalDateTime(timeZone)
+    val nowDate = Instant.fromEpochMilliseconds(Clock.System.now().toEpochMilliseconds())
+        .toLocalDateTime(timeZone).date
+    val lastDate = lastLocal.date
+
+    val hour = lastLocal.hour.toString().padStart(2, '0')
+    val minute = lastLocal.minute.toString().padStart(2, '0')
+    val timePart = "$hour:$minute"
+
+    val yesterday = nowDate.minus(DatePeriod(days = 1))
+    val daysBetween = nowDate.toEpochDays() - lastDate.toEpochDays()
+
+    return when {
+        lastDate == nowDate -> formatFromXmlTemplate(s.todayAt, timePart)
+        lastDate == yesterday -> formatFromXmlTemplate(s.yesterdayAt, timePart)
+        daysBetween in 2..6 -> {
+            val label = s.weekdayLabel(lastLocal.dayOfWeek)
+            formatFromXmlTemplate(s.weekdayAt, label, timePart)
+        }
+        lastDate.year == nowDate.year -> {
+            val mon = s.monthShort(lastDate.monthNumber)
+            formatFromXmlTemplate(s.dateThisYear, lastDate.dayOfMonth, mon, timePart)
+        }
+        else -> {
+            val mon = s.monthShort(lastDate.monthNumber)
+            formatFromXmlTemplate(s.dateFull, lastDate.dayOfMonth, mon, lastDate.year, timePart)
+        }
+    }
+}

app/shared/src/commonMain/kotlin/ru/fromchat/utils/RelativeTime.kt

@@ -1,61 +0,0 @@
-package ru.fromchat.utils
-
-import kotlinx.datetime.DatePeriod
-import kotlinx.datetime.Instant
-import kotlinx.datetime.TimeZone
-import kotlinx.datetime.minus
-import kotlinx.datetime.toLocalDateTime
-import kotlin.time.Clock
-import kotlin.time.ExperimentalTime
-
-private val monthShortEn = listOf(
-    "Jan", "Feb", "Mar", "Apr", "May", "Jun",
-    "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
-)
-
-/**
- * Returns a readable last-seen line in local time (24h clock), avoiding raw ISO dates.
- */
-@OptIn(ExperimentalTime::class)
-fun formatLastSeen(online: Boolean, lastSeenIso: String?): String {
-    if (online) return "Online"
-    val iso = lastSeenIso ?: return ""
-
-    val instant = runCatching { Instant.parse(iso) }.getOrNull() ?: return "Last seen recently"
-
-    val timeZone = TimeZone.currentSystemDefault()
-    val lastLocal = instant.toLocalDateTime(timeZone)
-    val nowDate = Instant.fromEpochMilliseconds(Clock.System.now().toEpochMilliseconds())
-        .toLocalDateTime(timeZone).date
-    val lastDate = lastLocal.date
-
-    val hour = lastLocal.hour.toString().padStart(2, '0')
-    val minute = lastLocal.minute.toString().padStart(2, '0')
-    val timePart = "$hour:$minute"
-
-    val yesterday = nowDate.minus(DatePeriod(days = 1))
-    val daysBetween = nowDate.toEpochDays() - lastDate.toEpochDays()
-
-    return when {
-        lastDate == nowDate -> "Last seen today at $timePart"
-        lastDate == yesterday -> "Last seen yesterday at $timePart"
-        daysBetween in 2..6 -> {
-            val label = lastDate.dayOfWeek.name
-                .lowercase()
-                .split("_")
-                .joinToString(" ") { word ->
-                    word.replaceFirstChar { c -> c.titlecase() }
-                }
-            "Last seen $label at $timePart"
-        }
-        lastDate.year == nowDate.year -> {
-            val mon = monthShortEn.getOrElse(lastDate.monthNumber - 1) { "" }
-            "Last seen ${lastDate.dayOfMonth} $mon at $timePart"
-        }
-        else -> {
-            val mon = monthShortEn.getOrElse(lastDate.monthNumber - 1) { "" }
-            "Last seen ${lastDate.dayOfMonth} $mon ${lastDate.year} at $timePart"
-        }
-    }
-}
-

app/shared/src/iosMain/kotlin/ru/fromchat/ui/debug/DebugApiScreen.ios.kt

@@ -1,291 +1,8 @@
 package ru.fromchat.ui.debug
 
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
-import androidx.compose.material.icons.filled.BugReport
-import androidx.compose.material3.Button
-import androidx.compose.material3.DividerDefaults
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.OutlinedTextField
-import androidx.compose.material3.Scaffold
-import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.runtime.saveable.rememberSaveable
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.unit.dp
-import com.pr0gramm3r101.utils.settings.settings
-import kotlinx.coroutines.launch
-import ru.fromchat.api.ApiClient
-import ru.fromchat.crypto.IdentityKeyManager
-import ru.fromchat.crypto.decryptEnvelope
-import ru.fromchat.ui.LocalNavController
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 actual fun DebugApiScreen() {
-    val navController = LocalNavController.current
-    val scope = rememberCoroutineScope()
-    val scrollState = rememberScrollState()
-
-    var statusMessage by rememberSaveable { mutableStateOf("") }
-    var profileResult by rememberSaveable { mutableStateOf<String?>(null) }
-    var conversationsResult by rememberSaveable { mutableStateOf<String?>(null) }
-    var historyResult by rememberSaveable { mutableStateOf<String?>(null) }
-    var historyUserId by rememberSaveable { mutableStateOf("0") }
-    var decryptedMessage by rememberSaveable { mutableStateOf<String?>(null) }
-    var sendRecipientId by rememberSaveable { mutableStateOf("") }
-    var sendMessageText by rememberSaveable { mutableStateOf("") }
-
-    Scaffold(
-        topBar = {
-            TopAppBar(
-                navigationIcon = {
-                    IconButton(onClick = { navController.navigateUp() }) {
-                        Icon(imageVector = Icons.AutoMirrored.Filled.ArrowBack, contentDescription = null)
-                    }
-                },
-                title = {
-                    Text(text = "Debug API")
-                },
-                actions = {
-                    IconButton(onClick = {}) {
-                        Icon(imageVector = Icons.Filled.BugReport, contentDescription = null)
-                    }
-                }
-            )
-        }
-    ) { innerPadding ->
-        Column(
-            modifier = Modifier
-                .padding(innerPadding)
-                .verticalScroll(scrollState)
-                .padding(16.dp),
-            verticalArrangement = Arrangement.spacedBy(12.dp)
-        ) {
-            Text(
-                text = statusMessage.takeIf { it.isNotBlank() }
-                    ?: "Status will appear here",
-                style = MaterialTheme.typography.bodyMedium
-            )
-
-            Button(
-                onClick = {
-                    scope.launch {
-                        runCatching { ApiClient.getOwnProfile() }
-                            .onSuccess {
-                                profileResult = ApiClient.json.encodeToString(it)
-                                statusMessage = "Profile loaded"
-                            }
-                            .onFailure {
-                                statusMessage = it.message ?: "An unknown error occurred"
-                            }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Load own profile")
-            }
-
-            Text(
-                text = profileResult ?: "No data loaded yet",
-                style = MaterialTheme.typography.bodySmall,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    scope.launch {
-                        runCatching { ApiClient.getDmConversations() }
-                            .onSuccess {
-                                conversationsResult = ApiClient.json.encodeToString(it)
-                                statusMessage = "Conversations loaded"
-                            }
-                            .onFailure {
-                                statusMessage = it.message ?: "An unknown error occurred"
-                            }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Load DM conversations")
-            }
-
-            Text(
-                text = conversationsResult ?: "No data loaded yet",
-                style = MaterialTheme.typography.bodySmall,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            OutlinedTextField(
-                value = historyUserId,
-                onValueChange = { historyUserId = it },
-                label = { Text(text = "History user ID") },
-                singleLine = true,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    val userId = historyUserId.toIntOrNull()
-                    if (userId == null) {
-                        statusMessage = "Enter a valid user ID"
-                        return@Button
-                    }
-
-                    scope.launch {
-                        runCatching { ApiClient.getDmHistory(userId) }
-                            .onSuccess {
-                                historyResult = ApiClient.json.encodeToString(it)
-                                statusMessage = "DM history loaded"
-                            }
-                            .onFailure {
-                                statusMessage = it.message ?: "An unknown error occurred"
-                            }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Load DM history")
-            }
-
-            Text(
-                text = historyResult ?: "No data loaded yet",
-                style = MaterialTheme.typography.bodySmall,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            HorizontalDivider(
-                modifier = Modifier.padding(vertical = 8.dp),
-                thickness = DividerDefaults.Thickness,
-                color = DividerDefaults.color
-            )
-
-            Text(
-                text = "DM Send Test",
-                style = MaterialTheme.typography.titleMedium,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            OutlinedTextField(
-                value = sendRecipientId,
-                onValueChange = { sendRecipientId = it },
-                label = { Text(text = "Recipient user ID") },
-                singleLine = true,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            OutlinedTextField(
-                value = sendMessageText,
-                onValueChange = { sendMessageText = it },
-                label = { Text(text = "Message text") },
-                singleLine = false,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    val userId = sendRecipientId.toIntOrNull()
-                    if (userId == null) {
-                        statusMessage = "Enter a valid recipient ID"
-                        return@Button
-                    }
-                    if (sendMessageText.isBlank()) {
-                        statusMessage = "Enter a message to send"
-                        return@Button
-                    }
-
-                    scope.launch {
-                        runCatching {
-                            ApiClient.sendDm(
-                                recipientId = userId,
-                                plaintext = sendMessageText.trim(),
-                                replyToId = null
-                            )
-                        }.onSuccess {
-                            statusMessage = "DM sent successfully"
-                        }.onFailure {
-                            statusMessage = it.message ?: "Failed to send DM"
-                        }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Send DM")
-            }
-
-            HorizontalDivider(
-                modifier = Modifier.padding(vertical = 8.dp),
-                thickness = DividerDefaults.Thickness,
-                color = DividerDefaults.color
-            )
-
-            Text(
-                text = "DM Decryption Test",
-                style = MaterialTheme.typography.titleMedium,
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Button(
-                onClick = {
-                    val userId = historyUserId.toIntOrNull()
-                    if (userId == null) {
-                        statusMessage = "Enter a valid user ID"
-                        return@Button
-                    }
-
-                    scope.launch {
-                        try {
-                            IdentityKeyManager.restoreFromLocal()
-
-                            val history = ApiClient.getDmHistory(userId)
-                            if (history.messages.isEmpty()) {
-                                statusMessage = "No messages found"
-                                decryptedMessage = null
-                                return@launch
-                            }
-
-                            val currentUserId = settings.getInt("current_user_id", 0)
-                            if (currentUserId == 0) {
-                                statusMessage = "Current user ID not found"
-                                decryptedMessage = null
-                                return@launch
-                            }
-
-                            val firstEnvelope = history.messages.first()
-                            val plaintext = decryptEnvelope(firstEnvelope, currentUserId)
-                            decryptedMessage = "Decrypted: $plaintext"
-                            statusMessage = "Decryption successful"
-                        } catch (e: Exception) {
-                            statusMessage = "Decryption failed: ${e.message}"
-                            decryptedMessage = "Error: ${e.message}\n${e.stackTraceToString()}"
-                        }
-                    }
-                },
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(text = "Decrypt First DM")
-            }
-
-            Text(
-                text = decryptedMessage ?: "No decrypted message yet",
-                style = MaterialTheme.typography.bodySmall,
-                modifier = Modifier.fillMaxWidth()
-            )
-        }
-    }
+    DebugApiScreenContent()
 }