Refactor image handling and decoding logic

- Introduced a maximum bitmap decode dimension to prevent excessive memory usage.
- Enhanced base64 to bitmap conversion by extracting payload and applying EXIF orientation.
- Improved error handling for image downloads and decoding processes.
- Simplified media picker and chat input components to manage keyboard visibility more effectively.
- Updated color selection grid to adaptively adjust based on available width.
- Added safety checks for notifications and call actions in profile screens.
- Optimized bitmap decoding in uriToBase64Image to handle large images more efficiently.

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

@@ -863,7 +863,7 @@ class MessageRepository private constructor(private val context: Context) {
                 currentList[existingIndex] = message
             } else {
                 currentList.add(message)
-                currentList.sortBy { it.timestamp }
+                currentList.sortWith(compareBy<Message>({ it.timestamp }, { it.messageId }))
             }
             flow.value = currentList
         }
@@ -1018,12 +1018,13 @@ class MessageRepository private constructor(private val context: Context) {
         val decryptedText =
                 if (privateKey != null && plainMessage.isNotEmpty()) {
                     try {
-                        CryptoManager.decryptWithPassword(plainMessage, privateKey) ?: plainMessage
+                        CryptoManager.decryptWithPassword(plainMessage, privateKey)
+                                ?: safePlainMessageFallback(plainMessage)
                     } catch (e: Exception) {
-                        plainMessage // Fallback на зашифрованный текст если расшифровка не удалась
+                        safePlainMessageFallback(plainMessage)
                     }
                 } else {
-                    plainMessage
+                    safePlainMessageFallback(plainMessage)
                 }
 
         return Message(
@@ -1040,6 +1041,27 @@ class MessageRepository private constructor(private val context: Context) {
         )
     }
 
+    /**
+     * Не показываем пользователю шифротекст (`CHNK:`/`iv:ciphertext`) если дешифровка не удалась.
+     */
+    private fun safePlainMessageFallback(raw: String): String {
+        if (raw.isBlank()) return ""
+        return if (isProbablyEncryptedPayload(raw)) "" else raw
+    }
+
+    private fun isProbablyEncryptedPayload(value: String): Boolean {
+        val trimmed = value.trim()
+        if (trimmed.startsWith("CHNK:")) return true
+
+        val parts = trimmed.split(":")
+        if (parts.size != 2) return false
+        return parts.all { part ->
+            part.length >= 16 && part.all { ch ->
+                ch.isLetterOrDigit() || ch == '+' || ch == '/' || ch == '='
+            }
+        }
+    }
+
     private fun DialogEntity.toDialog() =
             Dialog(
                     opponentKey = opponentKey,