a46d97467d584819749d9fa2fad2633594d6c47a
Updated `InvokeRecActionCommand.cs` to use `using` statements for `HttpClient`, `HttpRequestMessage`, and `HttpResponseMessage` to prevent resource leaks. Added a new `HttpExtensions.cs` file with a static `HttpExtensions` class as a placeholder for future HTTP-related extension methods. Included necessary `using` directives for potential LINQ, collections, and asynchronous programming.
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