Normalize PM voice and video into the Android message model

tools/chatgui-android/app/src/main/java/com/utun/chat/data/ChatRepository.kt

@@ -582,9 +582,14 @@ class ChatRepository {
                     text = obj.optString("data", ""),
                     ts = obj.optLong("ts", 0),
                     isOutgoing = outgoing,
-                    contentType = if (file) "file" else "text/plain",
+                    contentType = obj.optString("content_type", "text/plain"),
                     filePath = path,
                     fileSize = obj.optLong("media_size"),
+                    waveform = obj.optString("waveform").map { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".indexOf(it).coerceAtLeast(0) / 63f },
+                    voiceDurationMs = obj.optInt("duration_ms"),
+                    videoDurationMs = obj.optInt("duration_ms"),
+                    videoWidth = obj.optInt("width"),
+                    videoHeight = obj.optInt("height"),
                     downloadState = if (!file) "" else if (path.isNotEmpty()) "downloaded" else if (status == "expired") "error" else "downloading",
                     deliveryStatus = delivery
                 ))

tools/chatgui-android/app/src/main/java/com/utun/chat/data/ConversationTarget.kt

@@ -1,8 +1,9 @@
 package com.utun.chat.data
 
 /** Адресат фиксируется до записи, выбора файла или фоновой подготовки. */
-sealed class ConversationTarget(val id: String) {
-    class Channel(id: String) : ConversationTarget(id)
-    class Pm(id: String) : ConversationTarget(id)
+sealed class ConversationTarget {
+    abstract val id: String
+    data class Channel(override val id: String) : ConversationTarget()
+    data class Pm(override val id: String) : ConversationTarget()
     val nativeId: String get() = if (this is Pm) "dm:$id" else id
 }