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, 3 insertions, 2 deletions

diff --git a/crates/shirabe/src/command/exec_command.rs b/crates/shirabe/src/command/exec_command.rs
index 3f70cf8..824f09e 100644
--- a/crates/shirabe/src/command/exec_command.rs
+++ b/crates/shirabe/src/command/exec_command.rs
@@ -6,6 +6,7 @@ use shirabe_external_packages::symfony::component::console::output::OutputInterf
 use shirabe_php_shim::{PhpMixed, RuntimeException, basename, chdir, getcwd, glob};
 
 use crate::command::{BaseCommand, BaseCommandData, HasBaseCommandData};
+use crate::composer::{Composer, PartialComposer};
 use crate::console::input::InputArgument;
 use crate::console::input::InputOption;
 use crate::io::IOInterface;
@@ -87,7 +88,7 @@ impl ExecCommand {
         {
             let bins = self.get_binaries(true)?;
             if bins.is_empty() {
-                let bin_dir = crate::command::composer_full_mut(&composer)
+                let bin_dir = crate::command::composer_full(&composer)
                     .get_config()
                     .borrow_mut()
                     .get("bin-dir")
@@ -155,7 +156,7 @@ impl ExecCommand {
 
     fn get_binaries(&mut self, for_display: bool) -> Result<Vec<String>> {
         let composer = self.require_composer(None, None)?;
-        let composer_ref = crate::command::composer_full_mut(&composer);
+        let composer_ref = crate::command::composer_full(&composer);
         let bin_dir = composer_ref
             .get_config()
             .borrow_mut()