refactor(package): introduce Rc<RefCell<_>> handles for packages

PHP packages have reference semantics, so introduce shared-ownership
handles over an AnyPackage enum (PackageInterfaceHandle and friends)
and replace Box<dyn PackageInterface> throughout.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/shirabe/src/package/loader/validating_array_loader.rs b/crates/shirabe/src/package/loader/validating_array_loader.rs
index a2dd5a7..fbaa0f8 100644
--- a/crates/shirabe/src/package/loader/validating_array_loader.rs
+++ b/crates/shirabe/src/package/loader/validating_array_loader.rs
@@ -66,7 +66,7 @@ impl ValidatingArrayLoader {
         &mut self,
         config: IndexMap<String, Box<PhpMixed>>,
         class: &str,
-    ) -> anyhow::Result<Box<dyn BasePackage>> {
+    ) -> anyhow::Result<crate::package::PackageInterfaceHandle> {
         self.errors = Vec::new();
         self.warnings = Vec::new();
         self.config = config.clone();