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docs(lancedb): mark the husk sweep removable once lance#8322 ships (#399) 

Upstream merged the fix on 2026-08-06: cleanup now removes the directories it
empties, under the same 7-day / delete_unverified policy this sweep
reimplements. It is not in any release yet (lancedb 0.34.0 embeds lance 8.0.0;
the merge sits ahead of v11.0.0-beta.2), so the sweep stays -- but the next pin
carrying it should delete this rather than keep a second copy of upstream's
rule. That upgrade also collapses the documented horizon from ~14 days to ~7:
lance drops the directory in the same pass that empties it, so our age gate
stops stacking on top of theirs.

Co-authored-by: zhanghui <zhanghui@shanda.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
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10
src/everos/core/persistence/lancedb/repository.py
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@ -103,6 +103,16 @@ a day sits four orders of magnitude below it (tens of MB). Platform-wise only
ext4 has a fixed inode budget at all; APFS and xfs allocate dynamically, and
Windows is out of scope. The knob to reach for if this ever does bite is the
optimize cooldown, not this threshold — see there.
**When to remove this sweep** — lance-format/lance#8322 (merged 2026-08-06,
not in any release as of lancedb 0.34.0 / lance 8.0.0 — the merge sits ahead of
v11.0.0-beta.2) makes lance's own cleanup remove the directories it empties,
under this same 7-day / ``delete_unverified`` policy. Once a release carrying
it is pinned, delete :func:`_remove_empty_index_dirs` and its call site rather
than keep a second implementation of upstream's rule. That upgrade also halves
the horizon above: lance drops the directory in the pass that empties it, so
our age gate stops stacking on top of theirs and the steady state goes from
~14 days back to ~7.
"""
_HUSK_SWEEP_TIMEOUT_SECONDS = 60.0