fix(clean): add Docker prune hint with 30-day filter#689
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Users see "Docker unused data · skipped by default" but have no guidance on how to reclaim space safely. Add a prune suggestion with --filter until=720h (30 days) so users can act without guessing the right command.
The prune hint is display-only, not an executed command. Update assertions to verify the hint appears instead of asserting absence.
tw93
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Apr 7, 2026
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Reviewed against current cleanup behavior. This stays display-only, the prune command remains manual, the cleanup boundary does not expand, and the updated tests plus green CI are sufficient for merge.
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Summary
docker system prune --filter until=720hhint below the existing "Review: docker system df" lineSafety Review
Tests