feat: Enhance messaging read receipts and auto-read, fix auth 401 error suppression during logout, and refine agent profile expertise

lib/features/messaging/presentation/providers/messaging_provider.dart

@@ -143,6 +143,12 @@ class MessagingNotifier extends StateNotifier<MessagingState> {
         conversations: updatedConversations,
         unreadCount: totalUnread,
       );
+
+      // Auto-mark as read if user is currently viewing this conversation
+      final isActive = state.activeConversationId == convId;
+      if (isActive) {
+        markAsRead(convId);
+      }
     }));
 
     // Typing indicators
@@ -165,16 +171,36 @@ class MessagingNotifier extends StateNotifier<MessagingState> {
       }
     }));
 
-    // Read receipts
+    // Read receipts — update message ticks and conversation unread count
     _subscriptions.add(_socket.onMessagesRead.listen((data) {
       if (!mounted) return;
       final convId = data['conversationId'] as String?;
+      final readAt = data['readAt'] as String?;
       if (convId == null) return;
+
+      // Update conversation unread count
       final updatedConversations = state.conversations.map((c) {
         if (c.id == convId) return c.copyWith(unreadCount: 0);
         return c;
       }).toList();
-      state = state.copyWith(conversations: updatedConversations);
+
+      // Update message statuses — mark current user's sent messages as READ
+      final currentMessages = List<ChatMessage>.from(state.messages[convId] ?? []);
+      final currentUserId = _currentUserId;
+      bool messagesChanged = false;
+      final updatedMessages = currentMessages.map((m) {
+        if (m.senderId == currentUserId && m.status != MessageStatus.read) {
+          messagesChanged = true;
+          return m.copyWith(status: MessageStatus.read, readAt: readAt);
+        }
+        return m;
+      }).toList();
+
+      final newMessages = messagesChanged
+          ? (Map<String, List<ChatMessage>>.from(state.messages)..[convId] = updatedMessages)
+          : state.messages;
+
+      state = state.copyWith(conversations: updatedConversations, messages: newMessages);
     }));
 
     // Reconnection: re-join active conversation room and catch up missed messages