This PR fixes a bug in JSON assertions where the library wasn't properly handling certain numeric types during comparisons. The core issue was that the JSON conversion logic only checked for int and double values, but missed other important numeric types like unsigned integers (uint, ulong), signed long integers (), and floats (float). long

The fix adds support for these missing numeric types by extending the conversion step to handle uint, , ulong, and float values. Additionally, it introduces a new IsNumeric() helper method that properly identifies all numeric JSON values by checking for , ulong, or double types. long``long

Thanks to @jnyrup for the discovery.