feat: Add logging for packet details before sending, including attachment count and details

app/src/main/java/com/rosetta/messenger/crypto/MessageCrypto.kt

@@ -752,7 +752,11 @@ object MessageCrypto {
      * Использует PBKDF2 + AES-CBC с тем же ключом что и основное сообщение
      * 
      * В RN: encodeWithPassword(key.toString('utf-8'), JSON.stringify(reply))
-     * где key = Buffer.concat([chacha_key, nonce]) - 56 bytes as UTF-8 string
+     * где key = Buffer.concat([chacha_key, nonce]) - 56 bytes
+     * 
+     * ВАЖНО: JavaScript Buffer.toString('utf-8') на невалидных UTF-8 байтах
+     * заменяет их на U+FFFD (replacement character). Это поведение нужно
+     * воспроизвести в Kotlin для совместимости.
      * 
      * Формат выхода: "ivBase64:ciphertextBase64" (совместим с desktop)
      */
@@ -762,9 +766,11 @@ object MessageCrypto {
             android.util.Log.d("MessageCrypto", "  - ReplyJson length: ${replyJson.length}")
             android.util.Log.d("MessageCrypto", "  - PlainKeyAndNonce length: ${plainKeyAndNonce.size}")
             
-            // Convert keyAndNonce to UTF-8 string (as password) - same as RN: key.toString('utf-8')
-            val password = String(plainKeyAndNonce, Charsets.UTF_8)
+            // Convert keyAndNonce to string - simulate JS Buffer.toString('utf-8') behavior
+            // which replaces invalid UTF-8 sequences with U+FFFD
+            val password = bytesToJsUtf8String(plainKeyAndNonce)
             android.util.Log.d("MessageCrypto", "  - Password length: ${password.length}")
+            android.util.Log.d("MessageCrypto", "  - Password char codes: ${password.take(5).map { it.code }}")
             
             // Compress with pako (deflate)
             val deflater = java.util.zip.Deflater()
@@ -786,7 +792,7 @@ object MessageCrypto {
             )
             val secretKey = factory.generateSecret(spec)
             val keyBytes = secretKey.encoded
-            android.util.Log.d("MessageCrypto", "  - PBKDF2 key derived: ${keyBytes.size} bytes")
+            android.util.Log.d("MessageCrypto", "  - PBKDF2 key derived: ${keyBytes.toHex()}")
             
             // Generate random IV (16 bytes)
             val iv = ByteArray(16)
@@ -814,6 +820,25 @@ object MessageCrypto {
             replyJson
         }
     }
+    
+    /**
+     * Converts bytes to string mimicking JavaScript's Buffer.toString('utf-8') behavior.
+     * Invalid UTF-8 sequences are replaced with U+FFFD (replacement character).
+     */
+    private fun bytesToJsUtf8String(bytes: ByteArray): String {
+        // CharsetDecoder with REPLACE action mimics JS behavior
+        val decoder = Charsets.UTF_8.newDecoder()
+        decoder.onMalformedInput(java.nio.charset.CodingErrorAction.REPLACE)
+        decoder.onUnmappableCharacter(java.nio.charset.CodingErrorAction.REPLACE)
+        decoder.replaceWith("\uFFFD")
+        
+        return try {
+            decoder.decode(java.nio.ByteBuffer.wrap(bytes)).toString()
+        } catch (e: Exception) {
+            // Fallback to standard UTF-8 (shouldn't happen with REPLACE action)
+            String(bytes, Charsets.UTF_8)
+        }
+    }
 
     /**
      * 🔥 Расшифровывает reply blob из attachments (как в React Native)
@@ -842,8 +867,10 @@ object MessageCrypto {
             val ciphertext = Base64.decode(parts[1], Base64.DEFAULT)
             android.util.Log.d("MessageCrypto", "  - IV size: ${iv.size}, Ciphertext size: ${ciphertext.size}")
             
-            // Password from keyAndNonce
-            val password = String(plainKeyAndNonce, Charsets.UTF_8)
+            // Password from keyAndNonce - use same JS-like UTF-8 conversion
+            val password = bytesToJsUtf8String(plainKeyAndNonce)
+            android.util.Log.d("MessageCrypto", "  - Password length: ${password.length}")
+            android.util.Log.d("MessageCrypto", "  - Password char codes: ${password.take(5).map { it.code }}")
             
             // PBKDF2 key derivation
             val factory = javax.crypto.SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1")
@@ -855,6 +882,7 @@ object MessageCrypto {
             )
             val secretKey = factory.generateSecret(spec)
             val keyBytes = secretKey.encoded
+            android.util.Log.d("MessageCrypto", "  - PBKDF2 key derived: ${keyBytes.toHex()}")
             
             // AES-CBC decryption
             val cipher = Cipher.getInstance("AES/CBC/PKCS5Padding")

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

@@ -224,11 +224,18 @@ fun ChatDetailScreen(
     var showEmojiPicker by remember { mutableStateOf(false) }
     val emojiPanelHeight = if (imeHeight > 50.dp) imeHeight else 280.dp
     
-    // Динамический bottom padding для списка: инпут (~70dp) + клавиатура/эмодзи
+    // 🔥 Reply/Forward state (нужен для расчёта listBottomPadding)
+    val replyMessages by viewModel.replyMessages.collectAsState()
+    val hasReply = replyMessages.isNotEmpty()
+    
+    // 🔥 Дополнительная высота для reply панели (~50dp)
+    val replyPanelHeight = if (hasReply) 50.dp else 0.dp
+    
+    // Динамический bottom padding для списка: инпут (~70dp) + reply (~50dp) + клавиатура/эмодзи
     val listBottomPadding = when {
-        isKeyboardVisible -> 70.dp + imeHeight
-        showEmojiPicker -> 70.dp + emojiPanelHeight
-        else -> 100.dp
+        isKeyboardVisible -> 70.dp + replyPanelHeight + imeHeight
+        showEmojiPicker -> 70.dp + replyPanelHeight + emojiPanelHeight
+        else -> 100.dp + replyPanelHeight
     }
 
     // Telegram-style scroll tracking
@@ -289,10 +296,8 @@ fun ChatDetailScreen(
     val isTyping by viewModel.opponentTyping.collectAsState()
     val isOnline by viewModel.opponentOnline.collectAsState()
     
-    // 🔥 Reply/Forward state
-    val replyMessages by viewModel.replyMessages.collectAsState()
+    // 🔥 Reply/Forward state (replyMessages и hasReply определены выше для listBottomPadding)
     val isForwardMode by viewModel.isForwardMode.collectAsState()
-    val hasReply = replyMessages.isNotEmpty()
 
     // 🔥 Добавляем информацию о датах к сообщениям
     // В reversed layout (новые внизу) - показываем дату ПОСЛЕ сообщения (визуально сверху)

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

@@ -801,6 +801,13 @@ class ChatViewModel(application: Application) : AndroidViewModel(application) {
                     attachments = messageAttachments
                 }
                 
+                // 🔥 Log packet details before sending
+                ProtocolManager.addLog("📤📤📤 SENDING PACKET 📤📤📤")
+                ProtocolManager.addLog("  - Attachments count: ${packet.attachments.size}")
+                packet.attachments.forEach { att ->
+                    ProtocolManager.addLog("  - Attachment: type=${att.type}, id=${att.id}, blob=${att.blob.take(50)}...")
+                }
+                
                 // Отправляем пакет
                 ProtocolManager.send(packet)