perf: Fast file sync with content SHA checks#5166

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shreyas-goenka wants to merge 8 commits intomainfrom

shreyas-goenka/sha-snapshots

Commits on May 3, 2026

sync: add remote-SHA filter as a third layer of the upload pipeline
shreyas-goenka
committed

Commits on May 6, 2026

sync(bench): add minimal walker comparison
shreyas-goenka
committed
sync(bench): round-robin walker bench with persistent fixture; parallelize mkdirs
shreyas-goenka
committed