Class Mila::Dnn::FusedComponent< TDeviceType, TPrecision >: Built on the retired UnaryOperation base and the string-keyed OperationRegistry runtime dispatch, both superseded by compile-time OperationTraits. The only callers were CompositeComponent's never-invoked fuseSequentialOperations()/fusePair(). Excluded from the build (removed from Mila/CMakeLists.txt); retained for reference pending removal.