feat: Enhance avatar management with detailed logging and error handling

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

@@ -144,7 +144,8 @@ fun ProfileScreen(
     onNavigateToSafety: () -> Unit = {},
     onNavigateToLogs: () -> Unit = {},
     viewModel: ProfileViewModel = androidx.lifecycle.viewmodel.compose.viewModel(),
-    avatarRepository: AvatarRepository? = null
+    avatarRepository: AvatarRepository? = null,
+    dialogDao: com.rosetta.messenger.database.DialogDao? = null
 ) {
     val context = LocalContext.current
     val activity = context as? FragmentActivity
@@ -169,32 +170,46 @@ fun ProfileScreen(
     val imagePickerLauncher = rememberLauncherForActivityResult(
         contract = ActivityResultContracts.GetContent()
     ) { uri: Uri? ->
+        Log.d(TAG, "🖼️ Image picker result: uri=$uri")
         uri?.let {
             scope.launch {
                 try {
+                    Log.d(TAG, "📁 Reading image from URI: $uri")
                     // Читаем файл изображения
                     val inputStream = context.contentResolver.openInputStream(uri)
                     val imageBytes = inputStream?.readBytes()
                     inputStream?.close()
                     
+                    Log.d(TAG, "📊 Image bytes read: ${imageBytes?.size ?: 0} bytes")
+                    
                     if (imageBytes != null) {
+                        Log.d(TAG, "🔄 Converting to PNG Base64...")
                         // Конвертируем в PNG Base64 (кросс-платформенная совместимость)
                         val base64Png = withContext(Dispatchers.IO) {
                             AvatarFileManager.imagePrepareForNetworkTransfer(context, imageBytes)
                         }
                         
+                        Log.d(TAG, "✅ Converted to Base64: ${base64Png.length} chars")
+                        Log.d(TAG, "🔐 Avatar repository available: ${avatarRepository != null}")
+                        Log.d(TAG, "👤 Current public key: ${accountPublicKey.take(16)}...")
+                        
                         // Сохраняем аватар через репозиторий
+                        Log.d(TAG, "💾 Calling avatarRepository.changeMyAvatar()...")
                         avatarRepository?.changeMyAvatar(base64Png)
                         
+                        Log.d(TAG, "🎉 Avatar update completed")
+                        
                         // Показываем успешное сообщение
                         android.widget.Toast.makeText(
                             context,
                             "Avatar updated successfully",
                             android.widget.Toast.LENGTH_SHORT
                         ).show()
+                    } else {
+                        Log.e(TAG, "❌ Image bytes are null")
                     }
                 } catch (e: Exception) {
-                    Log.e(TAG, "Failed to upload avatar", e)
+                    Log.e(TAG, "❌ Failed to upload avatar", e)
                     android.widget.Toast.makeText(
                         context,
                         "Failed to update avatar: ${e.message}",
@@ -202,7 +217,7 @@ fun ProfileScreen(
                     ).show()
                 }
             }
-        }
+        } ?: Log.w(TAG, "⚠️ URI is null, image picker cancelled")
     }
     
     // Цвета в зависимости от темы