refactor(composer): represent composer via trait-based handlesrefactor/composer-handles

Replace the PartialComposer/Composer structs and the single
Rc<RefCell<PartialOrFullComposer>> enum with PartialComposer and
Composer traits (Composer: PartialComposer), InnerPartialComposer /
InnerFullComposer data structs, and the handle types FullComposerHandle
(impl Composer) and AnyComposerHandle (polymorphic enum, impl
PartialComposer), plus their weak variants.

Factory builds the full and partial graphs via separate Rc::new_cyclic
branches that share a build_composer_base helper. Call sites now use
trait methods that encapsulate borrowing instead of borrow_partial() /
composer_full*().

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/crates/shirabe/src/command/status_command.rs b/crates/shirabe/src/command/status_command.rs
index 9f66adf..87ab320 100644
--- a/crates/shirabe/src/command/status_command.rs
+++ b/crates/shirabe/src/command/status_command.rs
@@ -6,6 +6,7 @@ use shirabe_external_packages::symfony::component::console::input::InputInterfac
 use shirabe_external_packages::symfony::component::console::output::OutputInterface;
 
 use crate::command::{BaseCommand, BaseCommandData, HasBaseCommandData};
+use crate::composer::{Composer, PartialComposer};
 use crate::console::input::InputOption;
 use crate::io::IOInterface;
 use crate::package::dumper::ArrayDumper;
@@ -85,7 +86,7 @@ impl StatusCommand {
 
     fn do_execute(&mut self, input: &dyn InputInterface) -> Result<i64> {
         let composer = self.require_composer(None, None)?;
-        let mut composer = crate::command::composer_full_mut(&composer);
+        let composer = crate::command::composer_full(&composer);
         // TODO(phase-b): release the &mut self borrow held by get_io via clone_box.
         let io_box = self.get_io().clone();
         let io_ref = io_box.borrow();