Refactored `ConfigExtensions.cs` to move `ConfigurationExtensions`
to the `ReC.API.Extensions` namespace and re-added the
`GetFakeProfileId` method. Introduced `JsonExtensions.cs` with
a `JsonToDynamic` method for recursive JSON deserialization,
simplifying nested JSON handling. Updated `OutResController.cs`
and `RecActionController.cs` to use the new `JsonToDynamic`
method, improving code readability and reducing duplication.
Overall, modularized and cleaned up code for better maintainability.
