Real-time chat feature using ASP.NET Core SignalR that enables two or more users to exchange messages instantly.

Functional Requirements

1. User Connection

• Connect to the SignalR Hub after login.
• Display the user's connection status.
• Handle automatic reconnection.
• Track online/offline users.

2. One-to-One Chat

• View a list of available users.
• Select a user.
• Send messages.
• Receive messages instantly.
• View chat history.