First stable release. Cloner is now considered stable and ready for production use. This release establishes the public API and behavior introduced during the 0.0.x releases as the 1.0 baseline. Highlights: * Deep cloning with restoration of PHP internal object state. * Support for iterator, SimpleXML, Throwable, and DOM state restoration. * Explicit handling of objects that cannot be cloned or restored safely. * Improved preservation of iterator positions and internal exception/error state. * Comprehensive regression and contract coverage for supported cloning and restoration behavior. No known backwards-incompatible changes from 0.0.3.