feat(hash): implement hlen scan repair#3501
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git-hulk
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May 26, 2026
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Implements the HLEN fast-path algorithms and SCAN_AND_REPAIR lazy deletion for hash field expiration, including APPROX/REPAIR handling and coverage for expired physical fields and compaction ghosts.
Follows the HFE proposal in #3432 and addresses the HLEN/SCAN_AND_REPAIR task from tracking issue #3436.
Assisted-by: Codex/GPT5.5 xhigh