feat: Add support for retrieving and displaying attachment types in chat messages

app/src/main/java/com/rosetta/messenger/database/MessageEntities.kt

@@ -359,6 +359,19 @@ interface MessageDao {
         ORDER BY timestamp DESC, id DESC LIMIT 1
     """)
     suspend fun getLastMessageStatus(account: String, opponent: String): LastMessageStatus?
+    
+    /**
+     * 📎 Получить attachments последнего сообщения для диалога
+     * Возвращает null если сообщений нет или нет attachments
+     */
+    @Query("""
+        SELECT attachments FROM messages 
+        WHERE account = :account 
+          AND ((from_public_key = :opponent AND to_public_key = :account) 
+            OR (from_public_key = :account AND to_public_key = :opponent))
+        ORDER BY timestamp DESC, id DESC LIMIT 1
+    """)
+    suspend fun getLastMessageAttachments(account: String, opponent: String): String?
 }
 
 /**

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

@@ -1895,10 +1895,18 @@ fun DialogItemContent(
                                 if (isTyping) {
                                         TypingIndicatorSmall()
                                 } else {
+                                        // <20> Определяем что показывать - attachment или текст
+                                        val displayText = when {
+                                            dialog.lastMessageAttachmentType == "Photo" -> "Photo"
+                                            dialog.lastMessageAttachmentType == "File" -> "File"
+                                            dialog.lastMessage.isEmpty() -> "No messages"
+                                            else -> dialog.lastMessage
+                                        }
+                                        
                                         // 🔥 Используем AppleEmojiText для отображения эмодзи
                                         // Если есть непрочитанные - текст темнее
                                         AppleEmojiText(
-                                                text = dialog.lastMessage.ifEmpty { "No messages" },
+                                                text = displayText,
                                                 fontSize = 14.sp,
                                                 color =
                                                         if (dialog.unreadCount > 0)

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

@@ -33,7 +33,8 @@ data class DialogUiModel(
     val isSavedMessages: Boolean = false,  // 📁 Флаг для Saved Messages (account == opponentKey)
     val lastMessageFromMe: Int = 0,  // Последнее сообщение от меня (0/1)
     val lastMessageDelivered: Int = 0,  // Статус доставки (0=WAITING, 1=DELIVERED, 2=ERROR)
-    val lastMessageRead: Int = 0  // Прочитано (0/1)
+    val lastMessageRead: Int = 0,  // Прочитано (0/1)
+    val lastMessageAttachmentType: String? = null  // 📎 Тип attachment: "Photo", "File", или null
 )
 
 /**
@@ -147,8 +148,28 @@ class ChatsListViewModel(application: Application) : AndroidViewModel(applicatio
                         val actualDelivered = if (actualFromMe == 1) (lastMsgStatus?.delivered ?: 0) else 0
                         val actualRead = if (actualFromMe == 1) (lastMsgStatus?.read ?: 0) else 0
                         
+                        // <20> Определяем тип attachment последнего сообщения
+                        val attachmentType = try {
+                            val attachmentsJson = messageDao.getLastMessageAttachments(publicKey, dialog.opponentKey)
+                            if (!attachmentsJson.isNullOrEmpty() && attachmentsJson != "[]") {
+                                val attachments = org.json.JSONArray(attachmentsJson)
+                                if (attachments.length() > 0) {
+                                    val firstAttachment = attachments.getJSONObject(0)
+                                    val type = firstAttachment.optInt("type", -1)
+                                    when (type) {
+                                        2 -> "Photo"  // AttachmentType.IMAGE
+                                        3 -> "File"   // AttachmentType.FILE
+                                        else -> null
+                                    }
+                                } else null
+                            } else null
+                        } catch (e: Exception) {
+                            android.util.Log.e("ChatsListVM", "Failed to parse attachments", e)
+                            null
+                        }
+                        
                         // 🔥 Лог для отладки - показываем и старые и новые значения
-                        android.util.Log.d("ChatsListVM", "📊 Dialog ${dialog.opponentKey.take(16)}... | OLD: fromMe=${dialog.lastMessageFromMe}, del=${dialog.lastMessageDelivered}, read=${dialog.lastMessageRead} | NEW: fromMe=$actualFromMe, del=$actualDelivered, read=$actualRead")
+                        android.util.Log.d("ChatsListVM", "📊 Dialog ${dialog.opponentKey.take(16)}... | OLD: fromMe=${dialog.lastMessageFromMe}, del=${dialog.lastMessageDelivered}, read=${dialog.lastMessageRead} | NEW: fromMe=$actualFromMe, del=$actualDelivered, read=$actualRead | attachment=$attachmentType")
                         
                         DialogUiModel(
                             id = dialog.id,
@@ -165,7 +186,8 @@ class ChatsListViewModel(application: Application) : AndroidViewModel(applicatio
                             isSavedMessages = isSavedMessages,  // 📁 Saved Messages
                             lastMessageFromMe = actualFromMe,      // 🔥 Используем актуальные данные из messages
                             lastMessageDelivered = actualDelivered, // 🔥 Используем актуальные данные из messages
-                            lastMessageRead = actualRead            // 🔥 Используем актуальные данные из messages
+                            lastMessageRead = actualRead,            // 🔥 Используем актуальные данные из messages
+                            lastMessageAttachmentType = attachmentType  // 📎 Тип attachment
                         )
                     }
                 }
@@ -209,6 +231,26 @@ class ChatsListViewModel(application: Application) : AndroidViewModel(applicatio
                             dialog.lastMessage
                         }
                         
+                        // 📎 Определяем тип attachment последнего сообщения
+                        val attachmentType = try {
+                            val attachmentsJson = messageDao.getLastMessageAttachments(publicKey, dialog.opponentKey)
+                            if (!attachmentsJson.isNullOrEmpty() && attachmentsJson != "[]") {
+                                val attachments = org.json.JSONArray(attachmentsJson)
+                                if (attachments.length() > 0) {
+                                    val firstAttachment = attachments.getJSONObject(0)
+                                    val type = firstAttachment.optInt("type", -1)
+                                    when (type) {
+                                        2 -> "Photo"  // AttachmentType.IMAGE
+                                        3 -> "File"   // AttachmentType.FILE
+                                        else -> null
+                                    }
+                                } else null
+                            } else null
+                        } catch (e: Exception) {
+                            android.util.Log.e("ChatsListVM", "Failed to parse attachments in request", e)
+                            null
+                        }
+                        
                         DialogUiModel(
                             id = dialog.id,
                             account = dialog.account,
@@ -224,7 +266,8 @@ class ChatsListViewModel(application: Application) : AndroidViewModel(applicatio
                             isSavedMessages = (dialog.account == dialog.opponentKey),  // 📁 Saved Messages
                             lastMessageFromMe = dialog.lastMessageFromMe,
                             lastMessageDelivered = dialog.lastMessageDelivered,
-                            lastMessageRead = dialog.lastMessageRead
+                            lastMessageRead = dialog.lastMessageRead,
+                            lastMessageAttachmentType = attachmentType  // 📎 Тип attachment
                         )
                     }
                 }