Implemented SignalR to enable real-time communication between the server and connected clients. Added a new hub (`WeatherUpdateHub`), a background service (`SignalRSendService`), and modified both the API backend and React frontend for seamless message broadcasting and handling.
Set up a basic ASP.NET Core project targeting .NET 9.0 with nullable and implicit usings enabled. Added OpenAPI (Swagger) documentation using NSwag and a simple WeatherForecast endpoint. Included necessary configuration files for development and toolchain support.