fix(attribute): mark ClassConstFetch as lazy to resolve enum attribute args

ClassConstFetch expressions (e.g. Status::Active) in attribute arguments
were not marked as lazy values, so the PHPX bridge stored the backing
string value instead of calling the factory that resolves the enum case.

Add ClassConstFetch to requiresLazyValue() so the lazy marker is set and
the factory function is invoked at runtime via
typephp_attribute_set_lazy_value_argument().

Author: yuan-dian

src/Transform/RuntimeAttributeFactoryLowering.php

@@ -131,6 +131,7 @@ private function requiresLazyValue(Expr $value): bool
                 // though it is not represented by an Array_ AST node.
                 || $node instanceof Expr\Cast\Array_
                 || $node instanceof Expr\Cast\Object_
+                || $node instanceof Expr\ClassConstFetch
                 || (($node instanceof Expr\FuncCall || $node instanceof Expr\StaticCall)
                     && $node->isFirstClassCallable());
         }) !== null;