android: preserve avatar references in JSON refresh and live member snapshots

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

@@ -424,6 +424,14 @@ class ChatRepository {
             val arr = JSONArray(NativeLib.getChannelMembers(channelId))
             for (i in 0 until arr.length()) {
                 val obj = arr.getJSONObject(i)
+                val userinfo = try { JSONObject(obj.optString("ui").ifEmpty { "{}" }) }
+                catch (e: Exception) {
+                    LogManager.addLog("WARN", "Avatar", "Invalid userinfo group=$channelId owner=${obj.optLong("ni")}: ${e.message}")
+                    JSONObject()
+                }
+                val avatarFile = userinfo.optString("avatar_file")
+                val avatarServer = AvatarProtocol.node(userinfo.optString("avatar_server"))
+                val validAvatar = avatarServer != 0L && AvatarProtocol.validFile(avatarFile)
                 list.add(ChatMember(
                     nodeId = obj.getLong("ni"),
                     name = obj.optString("n", ""),
@@ -436,7 +444,10 @@ class ChatRepository {
                     isDeleted = obj.optInt("dl", 0) != 0,
                     nodeType = obj.optInt("tp", 0),
                     rtt = obj.optInt("rt", 0),
-                    isSelf = obj.optInt("is", 0) != 0
+                    isSelf = obj.optInt("is", 0) != 0,
+                    avatarServer = if (validAvatar) avatarServer else 0,
+                    avatarFile = if (validAvatar) avatarFile else "",
+                    storageRole = obj.optInt("sr", 0) != 0
                 ))
             }
         } catch (e: Exception) { Log.w("utun-gui", "getMembers error", e) }

tools/chatgui-android/app/src/main/java/com/utun/chat/viewmodel/ChatViewModel.kt

@@ -470,13 +470,14 @@ class ChatViewModel : ViewModel() {
                 if (data.size != offset + count * MEMBER_WIRE_SIZE) {
                     LogManager.addLog("ERROR", "VM", "MEMBER_LIST: invalid size ch=$chId count=$count bytes=${data.size}"); return
                 }
-                val radios = (0 until count).associate { i ->
+                val snapshot = (0 until count).associate { i ->
                     val w = requireNotNull(parseMemberWire(data, offset + i * MEMBER_WIRE_SIZE))
-                    w.nodeId to ((w.flags and 0x10) != 0)
+                    w.nodeId to w
                 }
+                val radios = snapshot.mapValues { (_, w) -> (w.flags and 0x10) != 0 }
                 memberRadios[chId] = radios
                 if (_currentChannel.value?.id == chId)
-                    _members.value = _members.value.map { it.copy(radioActive = radios[it.nodeId] == true) }
+                    _members.value = _members.value.map { snapshot[it.nodeId]?.toChatMember(it) ?: it }
                 LogManager.addLog("DEBUG", "VM", "MEMBER_LIST: ch=$chId members=$count radios=${radios.values.count { it }}")
             }
             24 -> { /* MEMBER_UPDATED: [ch_id_len:1][ch_id:var][count:1][member:MEMBER_WIRE_SIZE] */
@@ -952,6 +953,7 @@ class ChatViewModel : ViewModel() {
         NotificationSound.setMuted(channel.id, !_soundOn.value)
         r.connectChannel(channel.id)
         refreshMessages(channel.id)
+        refreshMembers(channel.id)
     }
 
     /* ── per-channel «play sound on message» ── */