v0.17.2

Query predicate compatibility patch for downstream Gazelle consumers.

Fixed

• Query compilation and evaluation now support #has-parent? with immediate parent semantics, matching the existing #not-has-parent? support.

Validation

• go test . -run 'Test.*Predicate' -count=1
• go test . -run 'TestParsePredicateHasParent|TestMatchPredicateHasParent|TestMatchPredicateNotHasParent|TestParsePredicateAncestorPredicates' -count=1