PolicySDKException class

A concrete implementation of IPolicySDKException that represents errors occurring within the Flutter Policy Engine SDK.

This exception class provides detailed error information including a descriptive message and an optional underlying exception that caused the error. It's used throughout the SDK to provide consistent error handling and reporting.

Example usage:

try {
  // SDK operation that might fail
} catch (e) {
  throw PolicySDKException(
    'Failed to load policy configuration',
    exception: e,
  );
}