feat(shirabe): resolve phase-b TODOs with shared ownership

Replace TODO(phase-b) placeholders (todo!() and commented-out code)
with real implementations:

- Share JsonFile via Rc<RefCell<JsonFile>> so JsonConfigSource and the
  owning command can hold the same instance (base_config_command,
  config_command, repository_command, require_command, create_project,
  remove_command, factory)
- Change InstallerInterface methods (is_installed, download, prepare,
  cleanup, get_install_path) to &mut self so initialize_vendor_dir can
  run, propagated to all installer implementations
- Pass io/config/filesystem/process by clone instead of moving or
  stubbing (auth_helper, svn_driver, curl_downloader, library_installer)
- Make TransportException Clone and store it by value in VcsRepository
- Clone operations in Transaction sort, root_aliases/temporary_constraints
  in RepositorySet::create_pool, and share CompletePackage via handle in
  PlatformRepository
- Wire up set_option, set_requires/set_dev_requires, installation manager
  setters, BumpCommand::set_composer, and clean_backups/set_local_phar

1 files changed, 4 insertions, 6 deletions

diff --git a/crates/shirabe/src/repository/vcs/svn_driver.rs b/crates/shirabe/src/repository/vcs/svn_driver.rs
index 3d344ec..9b2ea47 100644
--- a/crates/shirabe/src/repository/vcs/svn_driver.rs
+++ b/crates/shirabe/src/repository/vcs/svn_driver.rs
@@ -85,8 +85,7 @@ impl SvnDriver {
         }
 
         self.inner.cache = Some(Cache::new(
-            // TODO(phase-b): pass io by reference/clone
-            todo!("self.inner.io clone"),
+            self.inner.io.clone(),
             &format!(
                 "{}/{}",
                 self.inner
@@ -551,10 +550,9 @@ impl SvnDriver {
         if self.util.is_none() {
             self.util = Some(SvnUtil::new(
                 self.base_url.clone(),
-                // TODO(phase-b): clone or borrow io/config
-                todo!("self.inner.io clone"),
-                todo!("self.inner.config clone"),
-                Some(todo!("self.inner.process clone")),
+                self.inner.io.clone(),
+                self.inner.config.clone(),
+                Some(self.inner.process.clone()),
             ));
             self.util
                 .as_mut()