Align grouped `first_value`/`last_value` FILTER handling with shared `Some(true)` semantics#22681

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kosiew wants to merge 3 commits into

apache:mainfrom

kosiew:filtering-logic-01-22665

Commits on Jun 1, 2026

feat: make filter_to_validity public and improve first/last aggregation functionality
kosiew
committed
feat(tests): enhance first_last.rs with new test helpers and cleanup
kosiew
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feat: update nullable_bool_filter and improve test structure
kosiew
committed