Host hit 0 GB physical free / 76.8 of 79.6 GB commit while both tiers ran (pagefile
capped at 32 GB on a 97%-full D:), and the Dokan write of the batch's largest output
raised MemoryError. except OSError does not catch that, so the item was logged
'!! FAIL MemoryError:' with an empty message and the complete 493 MB <live>.new.mp4
stayed on the share; 8 such orphans had accumulated.
- _sha_remote / copy_remote_to_local / copy_local_to_remote: except (OSError, MemoryError)
so a transient host hiccup retries instead of failing the item
- same widening for both partial-file cleanups
- per-item handler: delete <dest>.new.mp4 unconditionally (os.remove + ignore
FileNotFoundError, never gated on os.path.exists - stale metadata on this share)
Verified by injecting MemoryError: the upload path returns False with the partial
deleted, the source read retries then raises a clean IOError, the hash retries twice.
STATE.md carries what the next session needs: the two commands that keep the tiers running, where
the logs/stage/locks/ledger live, the eight bugs this round produced (each with the measurement that
proved it), and the open items. The skill's body now keeps only the load-bearing rules; every
measured case moved to references/pitfalls.md, so the always-loaded part stays readable.