refactor(downloader): turn DownloadManager into downloader registry

Reshape DownloadManager from a hard-coded VCS match into a registry of
DownloaderInterface instances keyed by source type, mirroring
Composer's DownloadManager — with prefer-source/dist preferences, an
IO handle, and a files cache. ArchiveManager now resolves dist
sources through a shared DownloadManager instead of calling
download_dist directly, and Composer::require / try_load take an IO
so it flows through the factory wiring.

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/mozart/src/commands/audit.rs b/crates/mozart/src/commands/audit.rs
index 9672d57..0b84ccf 100644
--- a/crates/mozart/src/commands/audit.rs
+++ b/crates/mozart/src/commands/audit.rs
@@ -44,7 +44,7 @@ pub async fn execute(
     let working_dir = cli.working_dir()?;
 
     // Load Composer state (reads composer.json + config)
-    let composer = Composer::require(&working_dir)?;
+    let composer = Composer::require(io.clone(), &working_dir)?;
 
     // Parse audit config from composer.json's config.audit section
     let audit_config = AuditConfig::from_config(composer.config(), true, AuditFormat::Table)?;