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, 2 insertions, 5 deletions

diff --git a/crates/shirabe/src/command/self_update_command.rs b/crates/shirabe/src/command/self_update_command.rs
index 2353d13..9c5ae5a 100644
--- a/crates/shirabe/src/command/self_update_command.rs
+++ b/crates/shirabe/src/command/self_update_command.rs
@@ -646,19 +646,16 @@ RGv89BPD+2DLnJysngsvVaUCAwEAAQ==\n\
             .as_bool()
             .unwrap_or(false)
         {
-            // TODO(phase-b): self.clean_backups conflicts with earlier `self.get_io()` borrow
+            self.clean_backups(&rollback_dir, None);
         }
 
-        // TODO(phase-b): self.set_local_phar mutable borrow conflicts with earlier `self.get_io()` borrow
-        let _set_phar_ok: bool = todo!("self.set_local_phar(...)");
-        if !_set_phar_ok {
+        if !self.set_local_phar(&local_filename, &temp_filename, Some(&backup_file))? {
             // @unlink
             let _ = unlink(&temp_filename);
 
             return Ok(1);
         }
 
-        // TODO(phase-b): re-borrow io because earlier borrow conflicts with the &mut self calls above
         let io = self.get_io();
         if file_exists(&backup_file) {
             io.write_error3(