Land release blocker fixes and workspace cleanup

crates/transcription/src/model_manager.rs

@@ -557,7 +557,10 @@ mod tests {
             .expect_err("mismatched sha must fail");
         let msg = err.to_string();
         assert!(msg.contains("SHA256 mismatch"), "unexpected error: {msg}");
-        assert!(!dest.exists(), ".part → dest rename must not run on mismatch");
+        assert!(
+            !dest.exists(),
+            ".part → dest rename must not run on mismatch"
+        );
         let part = dest.with_extension("bin.part");
         assert!(!part.exists(), "failed hash must clean up the .part file");
     }