Receiver writes temps into a confined scratch dir and atomically renames into place; EXDEV aborts; inplace/partial bypass; thread-safe temp names. Uses existing wire field; no protocol bump. Reviewed (c-review APPROVE WITH NITS, all fixed); PR #262.
Receiver writes temps into a confined scratch dir and atomically renames into place; EXDEV aborts; inplace/partial bypass; thread-safe temp names. Uses existing wire field; no protocol bump. Reviewed (c-review APPROVE WITH NITS, all fixed); PR #262.