3f2ca938bd
Use a shared API request limiter across recursive upload and download traversal so folder detail fetches, file listings, folder auth, and transfers can run concurrently under one budget. Refactor the traversal loops into task-driven pipelines while preserving skip-if-exists, excludes, cleanup, and current output behavior. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>