feat: Enhance message handling and emoji picker

- Update MessageEntity to clarify encryption of plainMessage.
- Introduce ERROR status in MessageStatus for handling message send failures.
- Implement message delivery timeout logic in ChatDetailScreen.
- Add retry and delete functionality for failed messages in ChatViewModel.
- Improve message decryption process in ChatViewModel to handle various scenarios.
- Refactor emoji categories in AppleEmojiPicker to align with Unicode standards and improve sorting.

app/src/main/java/com/rosetta/messenger/data/MessageRepository.kt

@@ -157,6 +157,9 @@ class MessageRepository private constructor(private val context: Context) {
                 // Сериализуем attachments в JSON
                 val attachmentsJson = serializeAttachments(attachments)
                 
+                // 🔒 Шифруем plainMessage с использованием приватного ключа
+                val encryptedPlainMessage = CryptoManager.encryptWithPassword(text.trim(), privateKey)
+                
                 // Сохраняем в БД
                 val entity = MessageEntity(
                     account = account,
@@ -169,7 +172,7 @@ class MessageRepository private constructor(private val context: Context) {
                     fromMe = 1,
                     delivered = DeliveryStatus.WAITING.value,
                     messageId = messageId,
-                    plainMessage = text.trim(),
+                    plainMessage = encryptedPlainMessage,  // 🔒 Зашифрованный текст
                     attachments = attachmentsJson,
                     replyToMessageId = replyToMessageId,
                     dialogKey = dialogKey
@@ -230,6 +233,9 @@ class MessageRepository private constructor(private val context: Context) {
                 privateKey
             )
             
+            // 🔒 Шифруем plainMessage с использованием приватного ключа
+            val encryptedPlainMessage = CryptoManager.encryptWithPassword(plainText, privateKey)
+            
             // Сохраняем в БД
             val entity = MessageEntity(
                 account = account,
@@ -242,7 +248,7 @@ class MessageRepository private constructor(private val context: Context) {
                 fromMe = 0,
                 delivered = DeliveryStatus.DELIVERED.value,
                 messageId = packet.messageId,
-                plainMessage = plainText,
+                plainMessage = encryptedPlainMessage,  // 🔒 Зашифрованный текст
                 attachments = attachmentsJson,
                 dialogKey = dialogKey
             )
@@ -405,18 +411,33 @@ class MessageRepository private constructor(private val context: Context) {
     }
     
     // Extension functions
-    private fun MessageEntity.toMessage() = Message(
-        id = id,
-        messageId = messageId,
-        fromPublicKey = fromPublicKey,
-        toPublicKey = toPublicKey,
-        content = plainMessage,
-        timestamp = timestamp,
-        isFromMe = fromMe == 1,
-        isRead = read == 1,
-        deliveryStatus = DeliveryStatus.fromInt(delivered),
-        replyToMessageId = replyToMessageId
-    )
+    private fun MessageEntity.toMessage(): Message {
+        // 🔓 Расшифровываем plainMessage с использованием приватного ключа
+        val privateKey = currentPrivateKey
+        val decryptedText = if (privateKey != null && plainMessage.isNotEmpty()) {
+            try {
+                CryptoManager.decryptWithPassword(plainMessage, privateKey) ?: plainMessage
+            } catch (e: Exception) {
+                android.util.Log.e("MessageRepository", "Failed to decrypt plainMessage: ${e.message}")
+                plainMessage  // Fallback на зашифрованный текст если расшифровка не удалась
+            }
+        } else {
+            plainMessage
+        }
+        
+        return Message(
+            id = id,
+            messageId = messageId,
+            fromPublicKey = fromPublicKey,
+            toPublicKey = toPublicKey,
+            content = decryptedText,  // 🔓 Расшифрованный текст
+            timestamp = timestamp,
+            isFromMe = fromMe == 1,
+            isRead = read == 1,
+            deliveryStatus = DeliveryStatus.fromInt(delivered),
+            replyToMessageId = replyToMessageId
+        )
+    }
     
     private fun DialogEntity.toDialog() = Dialog(
         opponentKey = opponentKey,